complex of di-Schiff base ligand Ion

J. Indian Chem. Soc., Vol. 89, October 2012, pp. 1317-1322

Inclusion of a guest molecule in a tetranuclear adduct of sodium perchlorate and copper(II) complex of di-Schiff base ligand Saptarshi Bi swas a , Subrata Nai ya a , b , Michael G. B. Drew c and Ashutosh Ghosh a * a Depart ment

of Chemi stry, Uni versit y College of Science, Uni versit y of Calcutta, 92, Acharya Prafulla Chandra Road, Kol kat a-700 009, India E-mail : ghosh_59@yah oo.com b Susil

Fa x : 91-33-23519755

Kar College, Gh osh pur, Champahati, Baruipur-743 330, 24-Parganas (S), West Bengal

c Sch ool

of Ch emist ry, Th e Uni versit y of Reading, PO Box 224, Whitekni ghts, Readi ng RG6 6AD, UK Manuscript recei ved online 11 January 2012, accepted 01 February 2012 A bst ra ct : T he s y nt hes i s of a ne w s odi u m pe rc hl o ra te add uc t (1 : 3 ) wi t h a c o ppe r( I I ) “ li g a ndc o mp le x ” is re p o rte d i n whic h 2 - hyd rox yac e t op he no ne ac t s as a g ue s t. T he add uc t is t e t ra nuc le a r o f f or m ul a {[ ( C uL) 3 N a] ClO 4 } 2 ·C 8 O 2 H 8 ·0 . 5 C H 3 CN (1 ). T he li g a nd i s t he t et rade nt ate di - Sc hi ff base o f 1 , 3- prop a ne d ia mi ne s a nd o - hy drox y ac et op he no ne ( H2 L ). T he c o mp le x has be e n c ha ra c te ri ze d by Xra y s i ng l e c ryst a l st ruc t ure ana lys is. I n t he st r uc t ure , t he sod i um c at i o n has a si x -c oo rd i nate dis t ort e d oc ta he dra l e nvi ro nme nt be i ng bo nde d t o six ox yg e n at o ms f ro m t hre e Sc hi ff b ase c o mple x es. T he c o mp le x e x hib its re ve rsi ble re d uc t ive ( C u I I / C uI ; E p c , – 0. 9 1 4 V) a nd ox i da ti ve ( Cu I I / C u I I I ; E p a , + 1 . 0 6 0 V

re s pe c ti ve l y) re s po nse s i n c yc lic v olt a m me t ry. T he g e ne ra te d Cu I s pe c ie s f o r t he c o mp le x is u nst ab le a nd unde rg oe s di sp rop o rt i o nat i o n t o Cu 0 a nd Cu 2 + . K e y wo rds : Cop pe r( I I ), di-Sc hif f base l ig a nd, [ Na I C uI I 3 ] a d duc t, c ryst al st r uc t u re , spe c t ra l p ro pe rti e s, e le c t roc he m ist ry.


Ionophoretic technique in the study of biologically important mixed complexes in solution (The system FeIII/CuII/NiII/CoII-cystine-NTA) Praveen P. Singh, Pramod Kumar, V. K. Nigam and R. K. P. Singh* Electrochemical Laboratory of Green S ynthesis, Depart ment of Chemistry, Uni versit y of Allahabad, Al lahabad-211 002, Utt ar Pradesh, India, E-mail : rkp.singh@redi ffmail.com Manuscript recei ved 19 May 2011, revised 27 January 2012, accept ed 01 February 2012 A bst ra ct : I n t he p re se nt c om m unic ati o n i o no pho re tic t ec hni q ue ha s be e n used f o r t he st ud y of Fe I I I , C u I I , Ni I I , C o I I -c ys ti ne bi na ry a nd Fe I I I , Cu I I , N i I I , Co I I -c yst i ne - N T A ( ni t ri l ot ri ac e tic ac i d) mix e d c o mp le x e s. T he s t ab il it y c o nst a nts of me t a l -c yst i ne bi na r y c om pl ex e s a re f o und t o be 10 7 . 8 0 , 1 0 6 .9 0 , 1 0 5 . 1 0 , 1 0 4 .6 6 a nd t he st ab il i ty c o nst ants of me t al-c yst i ne - N T A mix e d c om pl e xe s ha ve be e n f o und t o be 1 0 5 . 1 8 , 10 4 .8 8 , 1 0 4 .76 , 1 0 4 . 10 fo r Fe I I I , Cu I I , Ni I I a nd Co I I co mp le x e s re s pe c ti ve l y a t µ = 0 . 1 M (HClO 4 ) a nd 2 5 ºC. K e y wo rds : Bi na ry c o mp le x , te rna ry c om pl e x, sta bi lit y c on sta nt, io no p ho re ti c te c hni q ue .


Synthesis and spectral study of yttrium and lanthanide chloride complexes of 2,3-dimethyl-4-formyl(benzhydrazide)-1-phenyl-3-pyrazolin-5-one G. Ajithkumar and P. K. Radhakri shnan*

Sch ool of Chemi cal Sciences, Mah at ma Gandhi Universit y, Kottayam-686 560, Keral a, Indi a E-mail : [email protected] Manuscript recei ved 04 August 2011, revi sed 31 January 2012, accepted 01 February 2012 A bst ra ct : A se ri e s o f co mp le x e s of t he Sc hi ff b ase , 2 , 3 -di me t hy l-4 -f o r my l( be nz hy d ra zi de ) - 1- phe nyl -3 py ra zo l i n-5 -o ne ( L) of t he g e ne ra l c o mp osi t io n [L nL 2 Cl 2 ] C l ( w he re L n = Y , L a, P r, Nd, S m, E u, G d, D y, Ho o r E r) ha s bo t h t he ca rb o ny l c oo rd i nat e d i n t he c o mp le x e s. K e y wo rds : Sy nt he sis,

be e n s ynt he s i ze d a nd c ha rac te ri ze d. L ac ts as a ne ut ra l l ig and d ona ti ng t h ro ug h ox yg e ns a nd t he a zo me t hi ne ni t rog e n i n t he se c o mp le x e s. T wo c hl o ri de i ons a re c o mp le x e s. A c o ord i nat io n n umbe r o f e ig ht is ass i g ne d t o t he me t a l i o n i n a l l t he yt t ri u m, l ant ha ni de , c o mp le x , Sc hiff base .


Volumetric, viscometric and refractometric studies of glycine, alanine, valine and glycylglycine in aquo-sucrose solution at different temperatures Anwar Ali*, Rajan Patel, Shahjahan, Vidi ksha Bhushan and Ni zamul Haq ue Ansari Depart ment of Chemi stry, Jami a Millia Isl ami a (Central Uni versit y), New Del hi-110 025, India, E-mail : [email protected]; an war_j mi @yahoo. co.in Manuscript recei ved 24 February 2011, revised 16 January 2012, accepted 17 January 2012 A bst ra ct : T he de nsit i es, ρ , visc o sit i e s, η a nd re f rac ti ve i ndic e s, n D o f (0 . 0 1, 0. 0 5 , 0 . 10 , 0. 15 and 0 . 2 0 m ) g lyc i ne (G l y), D L - al a ni ne ( Al a), D L - val i ne ( Va l) and g ly c ylg l yc i ne (Gl y-G l y) i n 0 . 1 0 m aq uo -s uc ro se s ol ut i o n we re me a s ure d at d iffe re nt te mpe ra t ure s. T he app a re nt m ol ar v ol u me , φ v , p a rt i al mo l a r v ol u me , φ v 0 a nd vol u me s of t ra nsfe r, φ v 0 ( t r ) we re c alc ul a te d usi ng de nsi t y d at a. T he vi sc os it y d at a we re ana l y ze d usi ng J o ne s- Dole e q ua ti o n to obt ai n vi sc os i ty c oe ffi c ie nts. A- and B- , f re e e ne rg y o f ac ti vat i on pe r mo l e of s o lve nt , ∆µ 1 0 * and s ol ute , ∆µ 2 0 * . T he re f ra ct i ve i nde x dat a we re use d t o c o mp ute mo l a r re f rac t i v it y, R D of a mi no ac i ds/ pe pti de i n aq uo -s uc ro se s ol ut i o ns. T he re s ul t s we re dis c usse d i n te r ms of i nte rac ti ons oc c ur ri ng i n t he te r na ry s ol ut i o n a nd t he s t ruc t u re - ma ki ng/ b re a ki ng abil it y of s ol ute (a mi no ac id/ pe pti de ) i n a quo-s uc ro se sol ut io n. K e y wo rds : De ns it y, vi sc osi t y, re f ra c ti ve i nde x , a mi no ac i d / g lyc ylg lyc i ne i n a q uo-s uc ro se sol ut i o n, i nte ra c ti o ns.


Kinetics and mechanism of oxidation of aromatic acetals by Nchloronicotinamide in acetonitrile medium K. Shenb ag am a and N. Mathi yalaganb * a M. A.M.

College of Engin eerin g, Siruganur, Tiruch irappal li-621 105, Tamilnadu, India

E-mail : senba_5@redi ffmail.com b Post graduate

and Research Depart ment of Chemist ry, St. Joseph’s College, Tiruchi rappalli620 002, Tamiln adu, India, E-mail : sjcmathi@yahoo. co.in Manuscript recei ved 12 October 2011, accepted 31 January 2012 A bst ra ct : An e ff o rt has be e n m ade t o i nt ro d uce N-c hl o ro nic oti na mi de ( N CN) a s a n ox i da nt t o so me a ro ma t ic ac e ta ls. T he re ac t io n s ho ws t ot al fi rst o rde r ki n e tic s, ze ro ord e r i n [ ac e t al] a nd fi rst o rd e r i n [ N CN ]. I nc re ase i n i o ni c st re ng t h ha s ma rg i nal ef fe c t on t he ra te whi l e i nc re a se i n die l e c t ri c c o ns ta nt of t he me d i um dec re ase s t he ra te . F urt he r t he r ate is s l ig ht l y de c re ase d by t he a d di t i o n of nic oti na mi de . Arr he ni us pa ra me te rs a nd ac ti va ti o n p a ram e te rs a re c al c ula te d. A me c ha ni s m c o ns iste nt wit h t he o bse rv at i o n i s p ro pose d a nd an a pp rop ri ate ra te la w i s de ri ve d. K e y wo rds : Aro ma t ic ac e t als, N-c hlo ro nic oti na m i de, ki ne t i c s, me c ha nis m.


Kinetics and mechanism of oxidation of syringic acid and 4methoxycinnamic acid by dichromate in presence and absence of succinic acid A. S. Kul karni a *, B. K. Bongane a , P. G. Gaval i a and (Mrs.) N. T. Patel b a Depart ment

of Chemistry and Ph ysi cs, B. S. College, Basmath-431 512, Dist. Hin goli, Maharashtra, India, E-mail : as_kulkarni123@redi ffmail. com b Depart ment

of Chemi stry, Yeshwant College, Nan ded-431 602, Maharashtra, Indi a

Manuscript recei ved 27 January 2011, accepted 09 January 2012 A bst ra ct : T he ef fe c t of v a ry i ng co nc e nt rat i o n of [s ubst ra t e ], [ox id a nt] , [ H + ], a dde d ne ut ra l s alt ha ve be e n st udi e d. It has bee n f o und t hat, t he ord e r of re ac ti o n wi t h re s pe c t to [ ox i d a nt ] and [s ub st ra te ] f ound t o be uni t y f ro m t he s lo pe of pl ot s log k vs l og [ s ub ]. T he rate of re ac t i o n i nc re ase s wit h de c re ase i n p H of pe rc hl o ric ac i d. Ha m me t t’s ac i di t y f unc t i o n a nd ac ti vi t y of wa te r ha ve be e n s t udie d. E ffe c t of te mp e rat u re has be e n st ud ie d. Ac ti v ati o n pa ra me te rs we re c o mp ut e d. T he pl ot o f ∆ H* vs ∆ S* is l i ne a r. T he e ffe c t of di el e c t ric c o ns t ant of t he me di um i ndi c at e s t he re ac t i on t o be + ve i o n- di p ole . T he re s ult of oxi dati o n p ro duc ts ha ve be e n i de nti fie d. K e y wo rds : K i ne tic s, s ucc i ni c ac id, sy ri ng ic ac id, 4 - me t hox yc i nna mi c ac i d, Ha m m e tt ac i dit y f unc t io n.


Thermodynamic properties of ethyl acrylate with higher primary alkane-1ols at 298.15 and 308.15 K temperatures Sujata S. Patil a , Sunil R. Mirgane a * and Bal asaheb R. Arbad b a P.

G. Depart ment of Chemistry, J. E. S. College, Jalna-431 203, Maharashtra, India

E-mail : sdv_chemistry@yah oo. co.in; mirgane_ ch em@yah oo. co. in b Depart ment

of Chemi stry, Dr. Babasaheb Ambedkar Marathwada Uni versit y, Aurangabad-431 001, Maharashtra, India, E-mail : abr_ch em@yah oo.co. in Manuscript recei ved 05 April 2011, accepted 09 January 2012 A bst ra ct : T he r mo d y na mi c p ro pe rt i es i nc l ud i ng de ns it y , visc os it y and ult ra so nic vel oci ty of t he bi na ry l i qui d m ix t u re of e t hy l ac ry la te wit h hi g he r p ri ma ry al ka ne -1 -o ls na me l y he x a ne -1 -o l, he pt a ne- 1- ol , oc t a ne -1 - ol a nd de c a ne -1 - ol ha ve be e n me as u re d o ve r e nti re ra ng e of c o mpo si t i o n, a t 2 9 8 . 15 a nd 3 0 8 . 1 5 K te mpe rat ure s a nd at a t mos phe ric p r e ss ure . T he se para me te rs we re use d i n t he re c e ntl y pro p ose d J o uy ban- Ac re e mo de l . T he se b asi c p ro pe rti es we re use d t o c alc ul ate e x c e ss p ro pe rtie s li ke e xc e ss mo l a r v ol um e ( V E ), de vi at i o n i n visc osi ty ( ∆ η ) a nd de v i ati o n i n ise nt ro p ic c o mp re ss ib il i ty ( κ E s ). T he e x c e ss p rope rt ie s f urt he r ha ve be e n fi tte d t o t he Re dl i c h-K iste r p ol y no mi al e q uat io n. T he m ix t ure visc osi tie s we re c o r re l at e d by G runb e rg - Niss a n, T am ura a nd K ura t a, M c All i ste r t hre e and fo u r b ody mo de l e q uat i o ns. Ul t ras o ni c ve loc it ie s of t he se b i na ry li q ui d mix t u re s we re use d to c a lc ul ate i nte r mo le c ul a r f re e l e ng t h as we ll as av ai l able vo l ume . K e y wo rds : Et hy l ac ry l ate + al ka ne - 1- ol s, J o uyb a n- Ac re e mo de l, e xc e ss mo l a r v ol ume , G ru nbe rg - N iss a n e q uat i on.


Oxidation of hydrocarbons, cyclic alcohols and aldehydes by in situ prepared sodium ferrate

Praveen K. Tandon*, Santosh B. Singh, S atp al Sing h and Bhawana Kesarwani Depart ment of Chemistry, Uni versit y of Allah abad, Al lahabad-211 002, Utt ar Pradesh, India E-mail : [email protected]

Fax : 91-532-2461236

Manuscript recei ved 10 May 2011, accept ed 09 January 2012 A bst ra ct : I n si t u pre pa re d s o di um fe rra te wa s use d f o r t he oxi dat i on of st r uc t u ra ll y di ffe re nt hy d roc a rb o ns, c yc l ic alc o ho l s a nd a lde hy de s t hus e li mi na ti ng t he te di o us p roce ss o f se pa ra t i ng po ta ssi u m fe r rat e i n t he so li d f or m be f o re i ts use as an ox i da nt. M ont m o ri l l o ni te K 10 unde r m ic ro wa v e i r ra di ati o ns c at al y ze d t he ox i dat i ons re s ul ti ng i n t he e x c e l le nt y ie l ds. M ax i m um yi e l ds of t he p ro duc ts unde r c o nt ro l le d c o ndi ti ons we re ob ta i ne d by c ha ng i ng t he re ac t i o n c o ndi t io ns o ne b y o ne ke e pi ng ot he r f ac t o rs c o nst a nt whic h ma y affe c t t he yi e ld. T he syst e m is s i mp le , p roc e e ds wi t ho ut o ve r-ox id at io n und e r re p o rte d c o ndi ti o ns and i n s ome c a se s g ive s e ve n be tte r re s ults c o mpa re d t o po ta ssi u m f e r ra te ox id at io ns. P he na nt h re ne was ox i di ze d t o 9 -fl uo re no ne (8 6 . 1% ) i nste ad o f p he nant h ra qui no ne. Fe r rate ox i dat i ons are e nv i ro n me n tal l y be nig n a nd be i ng ve ry f ast und e r m ic ro wa v e i rra di at io ns, be c om e e c ono mi c al al so. K e y wo rds : So di u m fe r ra te , mo nt mo ri ll o nite K 10 , mic ro wa ve s, ox id at i o n, 9 -f l uore no ne .


Decolorization of malachite green by a novel strain of Enterobacter Tina Mukherjee a , b *, Moumita Bhand ari a , Senjuti Halder b and Manas Das a a Depart ment

of Chemical Engineering, Uni versit y of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata-700 009, India, E-mail : tina. [email protected] b Scottish

Church College, 1 & 3, Urquhart Square, Kol kat a-700 006, India

Manuscript recei ved 02 September 2011, revised 04 January 2012, accepted 09 January 2012 A bst ra ct : I n t his st ud y, we ha ve iso l ate d a nove l st rai n of Ent e ro b a c t e r fro m d ye c o nt am i nat e d wa ste wa te r o f We st Be ng al ( Ha b ra ) a nd asse sse d its c a p abi l it y to re mo v e ma lac hite g re e n (M G), a wi de l y use d re c al c it ra nt dye . T he dye ha s be e n c o nfi r me d t o be c a rc i nog e nic a nd m ut ag e ni c ag a i ns t ma ny o rg a nis ms. T he ma i n ob je c ti ve s of t hi s st ud y we re to i de nti f y t he bac te ri a, i nve st ig a te its c apa b ili t y t o de c o lo ri ze ma l ac hi te g re e n a nd o pti mi zi ng t he p a ram e te rs f or d ye de c ol o ri za t io n. T he st ra i n wa s i de nti f ie d t o be E nt e ro b a c t e r a sb uri ae st rai n XJ U HX- 4T M by 1 6 S rRN A ge ne a nal yse s. T he re s ul ts s ho we d t ha t t hi s st ra i n de m ons t rate d hig h dec ol o ri zi ng c a pa bi lit y ( 96 – 9 9% ) at hig h c onc e nt ra t i o ns of M G (1 00 – 10 0 0 mg / L) unde r s ha ki ng c ond it i on wi t hi n 1 2 h. T he opti m um te mp e rat ure a nd pH rang e f or dye de c ol o ri za ti o n we re f o und t o be 3 5– 4 0 ºC a nd p H 7 – 8 re spe c t ive l y. T he de c ol ori zat i o n ac ti vit y wa s f o und t o be d ye -c o nce nt ra ti o n a nd i noc ul um- v ol u me d e pe nde nt . As t he c o nc e nt rat i o n is i nc re ase d t he org a nis m re q ui re s mo re t i me a nd m o re vol u me of i noc ul um fo r de c ol ori zat i o n of t he d ye f ro m t he m e di a. M ine ra l me di a c o nt ai ni ng s uc ro se as c a rb o n s ourc e a nd be e f e xt rac t as a nit ro g e n s ou rc e se rve as t he be st me d i a fo r de c ol o ri za t io n. K e y wo rds : De c o l o ri za ti o n, E nt e rob a c t e r a sb uri a e strai n X J UHX -4 TM , m al ac hi te g re e n, pH, t e m pe ra t ure , i noc ul um vol um e , % de c ol o ri za ti o n.


Modeling of acute toxicity by using topological and structural parameters† Basheerull a Shai k a , Jyoti Singh b , Izhar Ahmad a , Dadan Prasad Si ng hc , Satyend ra Si ng hc , Neel u Si ng hd and Vijay K. Agrawal a * a Depart ment

of Applied Sci ences, National In stitute of Techni cal Teach ers’ Trai ning and Research, Bhopal -462 002, Madh ya Pradesh, Indi a, E-mai l : [email protected] b Depart ment

of S HM, Amrapal i Institute of Techn ology and Scien ces, Shiksha Nagar, Lamach aur, Haldwani -263 139, Uttarakhand, India, E-mail : jyoti singh.dtu@gmail. com

c Depart ment

of Chemistry, Govt. K.N. P.G. Col lege, Sant Ravi das Nagar, Bhadohi -221 304, Uttar Pradesh, India d Depart ment

of Chemi stry, Sagar Insti tute of Research and Technol ogy, Bhopal -462 021, Madhya Pradesh, India Manuscript recei ved 21 January 2010, revised 11 January 2012, accepted 08 February 2012 A bst ra ct : I n t he p re se nt st ud y we ha ve c onsi de re d a di ve rse se t of 4 8 o rg a ni c c o mp o und s an d m ode le d t hei r ac ute t ox i c i t y (– l og L C 5 0 ) va l ue s to t he fat he ad mi n no w usi ng (i) d ist a nc e- base d t opo l og ic al i nd ic e s, (ii ) R a nd ic c o nne c ti vi t y, (ii i ) K ie r and Ha l l v a le nce c o n ne c ti vi ty i ndic e s, ( i v) B a la b an a nd B al a b an t y pe i ndic e s a nd ( v) st ruc t ura l p a ram et e rs and pe rf or m ed e x te rna l v al id at io n. T he me t ri c e s s uc h as R 2 P r e d o r Q 2 e xt are rep o rte d to de not e e xc e l le nt q ua li t y of e x te rna l va li d ati o n. K e y wo rds : QS T R/ QS AR, ac ut e tox ic it y, mul ti ple re g re ss io n (M L R).


Plant origin quercetin in combating arsenic induced hepato-cellular damage in rat M. Shi vashankar a , Anusua Das a , Bad al Kumar Mand al b * and Ni rmal endu Das c a Pharmaceutical

Chemistry Di visi on, b Environ mental and Anal ytical Chemistry Di visi on,

Sch ool of Advanced S cien ces, VIT Uni versit y, Vell ore-632 014, Tamiln adu, India E-mail : badal mandal @vit.ac.in c Bio

Fax : 91-416-224 3092

Membrane Di visi on, Indian Instit ute of Chemi cal Biol ogy, Kol kata-700 032, India

Manuscript recei ved 25 July 2011, revised 13 January 2012, accept ed 17 January 2012 A bst ra ct : S i nc e t he re is no me dic i ne f o r c o mba ti ng a rse n ic i nd uc e d li ve r f i b rosi s, q ue rc e ti n ( Q C), a pl a nt o ri g i n d rug , was use d t o c om bat ox i d ati ve st re ss c a use d by a rse nic t o he pati c t iss ue s of ra t. C o nc e nt ra t io ns of li po hy dro pe rox i de , s upe rox ide d is mut a s e (SO D) and c at al yse s we re m onit ore d wi t h re s pe c t to f ree QC a nd li p os o me i nte rc al ate d QC. Li p os o me i nte rc a la te d dr ug s i nc re ase d anti ox i da nt c ap ac i ty as we l l as de c re ase d t he v al ue of 4 - hy drox y pro l i ne (4 - PC) c o mp a re d t o t he a rse nite t re a te d g ro up. So, l i poso me i nte rc al ate d drug s ho we d mo re opt i mi ze d ac ti o n t o l i ve r t ha n f re e d r ug s an d q ue rc e t i n is pro mi si ng t o c o mbat arse nic i nduc e d he pa to m e g al y i n t he a rse nic e nde m ic a re as. K e y wo rds : Arse nic , l ive r fi b ros is, he p at o me g al y, q ue rce ti n, li pos o me i nte rc al ate d d rug.


Spectrophotometric determination of vanadium in industrial effluents around Raipur area S. K. Rajput, Deepti Bansode a * and Sunita Nai r a Govt.

Nagarjuna P. G. Coll ege of Sci ence, Raipur-492 010, Chhattisgarh, India

E-mail : adeepticreati ve@gmail .com Depart ment of Chemi stry, SSN College of Engi neering, Kalavakkam-603 110, Tami lnadu, India, E-mail : [email protected] Manuscript recei ved 02 Novem ber 2010, revised 18 January 2012, accepted 25 January 2012 A bst ra ct : A se le c t ive a nd se nsi ti ve s pe c t ro p ho t o me t r ic me t hod ha s be e n de ve lo pe d f o r t he de te r mi na ti o n of to ta l a mo u nt of va na di um i n t he s el e c t e d i nd ust ri a l si te di sc ha rg e s. T he p ro pose d m e t ho d q uant it at ive ly de t e rm i ne s t ra c e am ou nts of va nad i u m, whi c h f o rms a p urpl e c ol ore d c o mp le x wi t h N- p he ny l 3 - me t hyl be n zohy d rox a mic ac i d, ha vi ng λ m a x at 4 7 5 nm. T he o pt i m u m re ac ti o n

c o ndi ti o ns a nd ot he r i mp o rt a nt a na l yti c al pa ra me te rs ha v e be e n i nve st ig a te d. T he p re se nt me t ho d i s s uc c e ssf ull y ap plie d f o r t he a na l ysis of v ana di u m i n i nd ust ri al e f f l ue nts a ro u nd Rai p ur a re a. K e y wo rds : Spe c t ro pho t o me t ric , se le c ti ve , se ns i ti ve , disc ha rg e s, hy drox a mic ac id.


Studies in influence of ionic strength of medium on the complex equilibria of substituted hydroxy-1,3-popandiones with CrIII and LaIII metal ions pH metrically S. D. Thakur a *, K. P. Munot b , R. D. Deshmu kha and M. S. Tihile a a R.D.I. K.

& N.K.D. College, Badnera (Rl y. ), Amravati -444 701, Maharashtra, India

E-mail : sdthakur1968@indi ati mes.com b S.P.M.

College, Gh atanji, Dist. Yavat mal, Maharashtra, India

Manuscript recei ved 26 September 2011, revised 30 January 2012, accepted 31 January 2012 A bst ra ct : T he so l ut i o n st ud ie s (t he p rot on- li g and s ta bi li ty c o nst a nt pK a nd m e t al - lig a nd st ab il it y c o ns ta nts l og K ) o f b i na ry (1 : 1 ) c o mp le x e s o f Cr I I I a nd L a I I I wi t h 1- (2 ′ -hy drox y-5 ′ -b rom op he ny l )-3 ( 2 ′ -c hlo rop he ny l ) -1 , 3 -pro p a ne di o ne [ HB 2 CP] [L 1 ] a nd 1 -(2 ′ -hy drox y-5 ′ -b ro mo phe nyl ), 3 -( 4 ′ nit rop he ny l) -1 , 3 -p rop a ne di o ne [ HB4 N P] [ L 2 ] ha ve be e n pe rf o rme d at 0 . 0 2 to 0. 1 mol d m – 3 i o nic s t re ng t h at ( 29 ± 0. 1 ºC) i n 7 0% diox ane - wat e r mix t u re pH- me t ri c a ll y. T he pK a nd log K v al ue s a re uti li ze d t o e st i ma te t he t he r mo d y na mi c st abil it y c ons ta n ts at ze ro i onic st re ng t h a nd to kno w t he e x ac t nat ure of c o mp le x a ti o n e qui l i b ri a. K e y wo rds : Io ni c st re ng t h, s ubsti t ut e d hy d rox y-1 , 3 -p ro pa n e di o ne , di ox a ne - wa te r.


Heterogeneous photo-Fenton degradation of mixture of Bismark brown-R and Azure-B dyes on copper loaded neutral alumina Jyoti S harma, Rakshit Ameta, S ud hish Kumar a , Noopur Ameta, Kiran Chanderi a and Pinki B. Punjabi* Phot och emi stry Laboratory, Depart ment of Chemist ry, Uni versit y Coll ege of Scien ce, M. L. Sukh adia Uni versit y, Udai pur-313 002, Rajasthan, E-mail : pb_ [email protected] a Depart ment

of Physi cs, M. L Su khadi a Uni versit y, Udaipur-313 002, Rajasthan, India

Manuscript recei ved 09 Novem ber 2011, accepted 01 February 2012 A bst ra ct : I n t he pre se nt wor k, he te rog e ne o us p ho t o- Fe nt on de g rad ati o n of mi xt u re of t wo dye s ha s be e n i nve stig ate d i n a que o us me d i um und e r vis i bl e lig ht. T he se le c te d t wo d ye s a re B is ma r k bro wn- R a nd Az ure -B. T he p ho t oc at al yst has be e n p re pa re d b y l o adi ng of C u2 + i ons o n ne ut ra l al umi na. T he ra te s of p ho t oc at al ytic de g ra d ati o n of d ye s we re m oni t o re d spe c t ro p hot o me t ri c al l y. T he e ffe c t of ope ra t i ng p ara me te rs, s uc h as am ou nt o f p hot oc at al yst , l i g ht i nt e ns it y, c o nc e nt ra t i o n o f dye s, p H and a mo u nt of H 2 O 2 on t he ra te of p ho t oc at al ytic de g ra da ti o n ha s be e n st ud ie d. Phot oc at al yst has be e n c ha ra c te ri ze d b y I C P, I R, SEM and XRD. A te nt at i ve m ec ha nis m i nvo l vi ng • OH ra d ic a ls as a n ox i da nt f o r t he p ho toc at a ly ti c de g ra d at io n of mi xt u re of dy e s has be e n pro p ose d. K e y wo rds : He te rog e ne o us p ho t o-Fe nt on, spe c t ro p hot om et ric , B is ma r k b ro w n- R, Az u re- B.


Validation of a spectrophotometric method for soil adsorption study of thiophanate-methyl D. K. Sharma*, Adi ti Gupta and Raji nder Kashyap Depart ment of Chemi stry, Hi mach al Prad esh Uni versit y, Shi ml a-171 005, Hi mach al Prad esh, India , E-mai l : dksharma_dk@redi ffmail.com Fax : 91-177-2633014 Manuscript recei ved online 04 January 2012, revised 05 February 2012, accepted 07 February 2012 A bst ra ct : Wit h a v ie w t o st ud y t he f ate of t hi o p hana te - m e t hyl i n s oi l a nd t he e x te nt of s urf ac e an d g ro u nd wa te r c o nt a mi na ti on, t he s o il- a ds o rpt i on o f t he f un g ic ide o n f o u r I ndi an s oi ls of dif f e re nt s oi l c ha ra c te ri stic s ha s be e n st ud ie d by usi ng a ba tc h-e q ui l ib ri u m me t ho d. A s pec t ro p hot ome t ric m e t ho d ol og y base d o n t he re ac t i o n of t he f ung ic ide wi t h c op pe r( I I ) ac e ta te i n aq ue o us DM F s ol ut io n t o f o rm ye l l o wi s h g re e n s ol uti o n s ho wi ng max i mu m abs o r ba nc e a t 39 5 nm has be e n v ali d ate d fo r t he p urp ose . T he le ac hi ng be hav i o ur o f t he f ung ic i de i n te r m s o f g ro und ubi q uit y sc o re (G US) ha s t he v al ue be l o w 1 . 8, c lassi f yi ng t hi op ha na te - me t hy l as no n- l e ac hi ng pe st i c i de a nd he nc e i t d oe s no t re p re se nt ha za rd t o g ro und wa te r c o nt am i na ti on. K e y wo rds : T hi op ha na te - me t hyl, spe c t ro p ho t o me t ri c me t hod, so il a ds o rpt i o n st udy.


Study of base line environmental data of multimetal mining with special reference to Ambaji Mine Al ka Pradhan a * and Ji tendra P. Deshmukh a Depart ment

of Chemi stry, Motilal Vigyan Mahavi dyalaya, Bhopal -462 008, Madhya Pradesh,

b Depart ment

of Chemi stry, Mahat ma Gandhi Labour In stitut e, Ah medabad-380 052, Guj arat, India, E-mail : jitenddesh mukh@yah oo.com Fa x : 91-79-40013755 Manuscript recei ved 21 March 2011, revised 04 January 2012, accepted 09 January 2012 A bst ra ct : Any mi ni ng ac ti vit y is l i ke l y t o affe c t t he qual i ty of s ur ro u nd i ng e nvi ron me nt d u ri ng i t s ope ra t io n. T he na t ure a nd mag ni t ude o f i mpac ts on di f fe re nt c om po ne nt s of t he e nvi ro nme nt, v i z. ai r, no ise , wa te r, l a nd, bi ol ogi c al a nd s oc i o-e c o nom ic v a ry de p e ndi ng o n t he nat u re a nd s i ze of t he mi ni ng p ro je c t a nd t he re f ore i t is e sse nti al t o fi nd o ut t he b ase l i ne e nvi ro nm e nt al da ta be f o re p re pa ri ng t he e nv i ro n me nt al ma nag e m e nt p la n. E nvi ro nme nt m ana g e me nt pl a n g i ve s t he ac c o unt of me as ure s ne c e ssa ry to p re ve nt t he i mp ac ts o n t he base l i ne e nv i ro n me nt al s it ua ti o ns. O nc e t he b ase li ne st at us of e nv i ro nm e nta l p a ra me te rs is kno wn t he de c i si on re g ard i ng c or re c ti ve a nd p re ve nti ve me as ure s be c o me s mo re sc ie nt if ic a nd t ec hno l og i c al l y a nd f i nanc i a ll y vi able . I n pre se nt s t ud y e ff o rts a re ma de t o e st ab li s h t he b ase li ne ai r a nd wa te r qual it y of A mb aj i M ul ti M e tal Mi ne at D ist t. B a nas ka nt ha , G uj ara t. T he re f ore t his s t ud y wi l l be use f ul f o r ma ki ng t he de c isi o ns re g ard i ng t he e nv i ro n me nt al m e as ure s re q ui re d by t he mi ni ng ac ti vit y. K e y wo rds : G ro und wa te r, s urf ace wa te r, s oi l, ai r i mp ac ts, a mbie nt a i r qual i t y, e nvi ron me nta l m anag e me nt pl a n.


Role of metal ions, EDTA and phosphatase enzyme during the solubilisation of Indian rock phosphate by Aspergillus niger R. Ghosh, S. Gangul y* and A. K. Bani k Depart ment of Chemical Engineering, Bioch emi cal Engineering Di visi on, Uni versit y of Calcutt a, 92, Acharya Prafulla Chandra Road, Kol kata-700 009, Indi a

E-mail : subhadeepgangul yphysi [email protected] Manuscript recei ved 11 Novem ber 2011, accepted 31 January 2012 A bst ra ct : T he pro c e ss of s o l ubi lis at i on of ro c k p hos p ha te by a mut a nt st ra i n of A sp e rg i l l us ni g e r A B 1 0 0 was st i m ul at ed b y a ddi ng Fe SO 4 . 7 H2 O t o t he i nc ub ati o n me di um. E DT A at a c o nc e nt ra t io n o f 3 0 mg / ml g re at ly e nha nc e d t he so l ub ili s at i o n p roc e ss wh e re as CaC O 3 (0 . 5 – 2. 0% ) and ZnSO 4 . 7 H2 O i nhi bit e d t he p roc ess . Pho s p hat ase ac ti v it y and ac i d pro d uc t i o n wa s f o und t o v ary di re c t l y wi t h t he s ol ub il is ati o n p roc e s s. K e y wo rds : Sol ub il i s at i o n, roc k pho sp ha te , muta nt , p hos p h at ase.


Polarographic behaviour of Cu II-2,4,6-trihydroxy-deoxy-benzoin complexes in ethanol-water (65%) media V. K. Sharma Depart ment of Chemi stry, Shyam Lal Coll ege (Uni versit y of Delhi), Shahdara, Delhi -110 032, India, E-mail : drvin odsharma57@yah oo.com Manuscript recei ved 16 August 2011, revi sed 09 January 2012, accepted 10 January 2012 A bst ra ct : P ol a ro g ra phi c be ha v i o ur of 2, 4, 6 -t ri hy dro x y -de ox y -be nzo i n wit h Cu I I i o n i n 65 % e tha nol wa te r m e di a ha s be e n i nve s ti g ate d. C ro w’s me a n d iff usi o n c oe f f ic ie nt ( util i zi ng di ff usi o n c u r re nt v al ue s) a nd De Fo rd- Hu me ’s ( usi ng hal f- wa ve pote nt ia l val ue s) me t ho ds we re a pp li e d to de te r mi ne t he st a bi l it y c o nst a nt v al ue s of c o mpl e xe s. Cu I I f o r ms 1 : 1 a nd 1 : 2 c o mple x es wi t h 2 , 4, 6- tri hyd rox yde ox y- be nzo i n. T he st ud ie s we re c a r rie d o ut at di ffe re nt te mpe rat ure s t o c alc ul ate t he r m od y nam i c pa ra me te rs, t he c ha ng e i n Gi bb’s f ree e ne rg y, c ha nge i n e nt hal py a nd c ha ng e i n e nt ro py. K e y wo rds : Pol a rog rap hy, be nzoi n c om ple x e s, sta bi l it y c o n sta nt.


Simple syntheses of (Z)-7-dodecen-1-ol, (Z)-7-tetradecen-1-yl acetate, (Z)-9-tetradecenal and (Z)-9-hexadecen-1-yl acetate from aleuritic acid R. N. Majee Lac Processi ng and Product Devel opment Di vi sion, Indian Inst itute of Natural Resins an d Gu ms, Namkum, Ranchi -834 010, Jharkh and, India, E-mail : r.n. majee@gmail .com Manuscript recei ved 09 February 2010, revised 11 March 2011, accepted 11 January 2012 A bst ra ct : I nse c t se x p he ro mo ne s are use d f o r mo ni t o r i ng a nd ma na ge me nt of c rop pe st s. Fo ur c o mp o und s ( Z)-7 - d o dec e n-1 - ol, ( Z) -7 -te t ra de c e n-1 -y l ac e t a te , (Z)-9 -t et rad e c e nal a nd (Z )-9 - he x ade c e n1 -yl ac e t at e re po rte d as c o mp o ne nts of s om e i mp o rt a nt ag ri c ul t ura l i nse ct pe sts have be e n s ynt he s i ze d f ro m t hre o- al e u rit ic ac id (9 , 10 , 1 6 -t ri hy d ro x y he x ade c a no i c ac i d) i nv o l vi ng s i m pli f ie d Wi tt ig re ac ti o ns wi t h i mp ro ve d y i el d. K e y wo rds : Se x p he rom o ne , t hre o- al e uri t ic ac id, ( Z)-7 - d o d ec e n-1 -o l, (Z)-7 -te t ra de c e n-1 - yl ac e t ate , (Z)-9 te t ra de c e nal, (Z)-9 - he x ade c e n-1 - yl ac et at e , Witt i g re act i o n.


Simple and facile synthesis of (E)-9-hexadecen-1,16-olide (isoambrettolide) and dimethyl (E)-2-undecen-1,11-dioate, a juvenile hormone R. N. Majee

Lac Processi ng and Product Devel opment Di vi sion, Indian Insti tute of Natural Resins an d Gu ms, Namkum, Ranchi -834 010, Jharkh and, India, E-mail : r.n. majee@gmail .com Manuscript recei ved 22 March 2010, revised 24 February 2011, accepted 11 January 2012 A bst ra ct : ( E) -9 - He x a de c e n- 1, 16 -o li de (is o a mb re t t oli de ) p osse ssi ng mus k- li ke od ou r is use d as f ix at i ve i n pe rf u me ry f orm ul at i ons. I t ha s bee n synt h e si ze d f ro m t hre o -a le uri tic ac i d (9 , 1 0 , 1 6t ri hyd rox yhe x a de c a no ic ac id ) by si mp le pro c e d ure . T he c o mp o und s ho we d a nt ibac te ri a l ac ti v it y. Sy nt he sis of di m e t hy l (E ) -2 - unde c e n- 1, 1 1-di o ate was ac hie ve d f o r t he f i rst ti me f ro m t h re o al e u rit ic ac i d, t he m aj o r c o mp o ne nt of l ac re si n, a nd i ts b i o ass ay has be e n re p ort ed. K e y wo rds : t hre o- Ale u rit ic ac i d, iso a mb re t to li de , a nt ib ac te ri al ac ti vi ty, di me t hy l (E )-2 - unde c e n-1 , 1 1 -di o ate , j uve ni le ho rm one ( J H).


Chemical speciation of L-glutamic acid complexes of some toxic metal ions in DMSO-water mixtures K. Bharath Kumar Nai k, B. Anand Kumar, S. Raju and G. Nageswara Rao* Sch ool of Chemi stry, Andhra Uni versit y, Visakhapat nam-530 003, Andhra Pradesh, India E-mail : gollapallinr@yahoo. com Manuscript recei ved 26 July 2011, revised 29 Decem ber 2011, accepted 29 December 2011 A bst ra ct : Che mi ca l s pe c i ati o n of L -g l uta mi c ac id c o m ple x e s of s o me t ox ic me t al i o ns has be e n i nve sti g ate d p H- m et ri c al l y i n DMSO- wa te r mix t u re s (0 – 6 0% v/ v) at 3 03 K and i o nic st re ng t h of 0 . 1 6 m ol L – 1 . T he p re d o mi na nt s pec i e s de te c te d fo r Pb I I a nd Cd I I a re M L 2 H4 , M L 2 H3 , M L 2 H2 , M L 2 and M L a nd f o r Hg I I are M L 2 H4 , M L 2 H 3 , M L 2 H2 and M L . T he t re nds i n v a ri at io n of st abi l it y c o ns ta nt s of t he c o mp le x e s wi t h die le c t ric c o nst a nt of t he me di u m ar e att ri b ute d t o t he e le c t ro st atic a nd no ne l e c t rost at ic fo rc e s. K e y wo rds : Che mic a l spe c i at io n, gl ut a mi c ac i d, tox ic me ta l s, DM SO .