Full Marks 50. INORGANIC CHEMISTRY-II. (AC-201). UNIT----3. Bonding in
metal complexes : valence bond theory and its limitations, ligand field theory,.
SEMESTER---2 Paper 6 Full Marks 50 INORGANIC CHEMISTRY-II (AC-201)
UNIT----3 Bonding in metal complexes : valence bond theory and its limitations, ligand field theory, splitting of d- orbitals in different ligand fields. ligand field stabilization energy and its calculations, thermodynamic effects of LFSE, factors affecting splitting parameter, spectrochemical series, Jahn-Teller effect, σ and π bonding in complexes, MO diagram of complexes with and without π bonds, effect of π interaction on the stability of bond, nephelauxetic series. Term symbol for d- ions, characteristics of d-d transition, selection rules for d-d transition, Orgel diagram, Tanabe-Sugano diagrams, band width, effect of Jahn-Teller distortion and spin-orbit coupling on spetra, electronic spetra of complex ions, calculation of Dq and B from spectral bands, charge transfer spectra. Magnetic properties of metal complexes : Type of magnetism shown by complexes, Gouy method of susceptibility measurement, spin only value, orbital contribution to magnetic moment, antiferromagnetism in complexes, TIP, application of magnetic measurements to structure determination of transition metal complexes. Solid state chemistry: Structure of ionic solids: AB type and AB2 type. Crystal defects: Perfect and imperfect crystals; point, line and plane defects. Schottky and Frenkel defects. Colour centres in alkali halide crystals. Lattice energy, Born-Haber cycle and its applications Metallic bonding--- Brillouin zone, forbidden zone and conductivity, semiconductors and band theory.
UNIT---4 Cordination chemistry : Isomerism---geometrical, optical and other types, stepwise and overall formation constants, Irving-William order of stability, factors affecting stability of complexes: macrocyclic effect. Inert and labile complexes, general mechanism for ligand replacement reactions, experimental evidences for mechanism---sensitivity of the rate to the nature of entering and leaving groups, ligand field effects on reaction rate.
Ligand replacement in square planar complexes: trans effect & trans influence, theories behind them, cis effect. General mechanism of ligand replacement in square planar complexes. Redox reactions in complexes: outersphere and innersphere mechanism of redox reactions. Organometallic Compounds : Metal carbonyls---synthesis, structure and bonding in mononuclear and polynuclear carbonyls with and without bridging, metal carbonyl hydrides and metal carbonyl clusters. Complexes with linear π donor ligands: olefins, acetylenes, dienes and allyl complexes.Complexes with cyclic donors---cyclopentadiene, benzene.Oxidative addition and reductive elimination reactions, insertion and extrusion reactions. Catalysis by organometallic compounds---hydrogenation, hydroformylation and polymerisation reactions. (Wilkilson’s catalyst, Ziegler-Natta catalyst & Synthetic gasoline should be included among various examples).
Paper 7 Full Marks 50 ORGANIC CHEMISTRY-II (AC-202) Unit-I Organic Spectroscopy: (UV, IR, NMR) (a) UV Spectra: Electronic transition, relative position of λmax value of the chromophoric groups considering conjujation effect, steric effect, effect of Ph, etc. (b) IR Spectra: Modes of molecular vibration, Hook’s law, force constant, characteristic stretching frequencies of O-H, N-H, C-H, C-D, C=C, C=N C=O, C≡N C≡C. Factors affecting the stretching frequencies (H-bonding). electronic factors, mass effect, bond multiplicity, ring-size, solvent effect. (c) NMR Spectra: NMR active nuclei, principle of proton magnetic resonance, equivalent and non equivalent protons, chemical shift, shielding and deshielding of proton, upfield and downfield NMR peack area. Application of NMR in determination of structure.
Unit-II Heterocyclic Chemistry and carbohydrates: (a) Heterocyclic chemistry: Synthesis, reactivity, orientation and important reactions of pyrrole, thiophene, furan, pyridine, indole, quinoline and isoquinoline. (b)
Carbohydrates: Monosaccharides- classification, osazone formation, stepping up and
stepping down of aldoses, inter conversion of aldoses to ketoses and vice-versa, ring structure of
D-glucose and D-fructose, conformational aspects of D-glucose, anomeric effect, mutarotation. Disaccharide: structure of sucrose.
Unit-III Pericyclic reactions, photochemistry and Mass spectroscopy. (a) Pericyclic reactions: Definition and classification, Electrocyclic reaction, FMO approach, example of electrocylic reactions (thermal and photochemical) involving 4 and 6π electrons, cyclo addition reactions FMO approach, Diels-Alder reactions. Sigmatropic shifts and their order [1,3] H and [1,5] H shifts and [3,3] shifts with reference to claisen and cope rearrangement. (b) Photochemistry: Introduction of photochemical reactions paterno- Buchi reaction. Norish type I & II reaction photoreduction of ketones, photochemistry of arenes. Barton reaction. (c) Mass Spectroscopy: Basic principles, fragmentation processes, fragmentation associated with the functional groups. Application of MS in structure elucidation.
Unit-IV Biomolecules and natural products: (a) Amino acids, peptides and proteins: Synthesis of α-amino acids (Gabriel, strecker, azlactone, malonic ester methodologies) isoelectric point, ninhydrin reaction. Resolution of amino acids. Peptide synthesis including Merrifield synthesis, structure determination of peptide, C-terminal and N-terminal unit determination, determination of amino acid sequence. Proteins: classification, structure (primary and secondary structure only), nucleic acids : (b) Alkaloids: Characteristic reaction, general methods of degradation, structure and chemistry of some well- known alkaloids. (c) Terpenoids: Classification, structure, chemistry and biogenesis of some mono, sesqui, di and triterpenes. (d) Steroids: General methods of study, chemistry of cholesterol, hormones, bile acids, vitamins of D- group, diosgenin.
Paper 8 Full Marks 50 (AC-203) GR A : PHYSICAL CHEMISTRY-II Colligative Properties and Phase Rule (Marks = 15) Definitions of phase, component and degrees of freedom. Phase rule and its derivations. Definition of phase diagram. Phase equilibria for one component system – water, CO2. First order phase transition and Clapeyron equation; Clausius-Clapeyron equation - derivation and use. Liquid vapour equilibrium for two component systems. Ideal solution at fixed temperature and pressure. Principle of fractional distillation. Duhem-Margules equation. Henry's law. Konowaloff's rule. Positive and negative deviations from ideal behaviour. Azeotropic solution. Liquid-liquid phase diagram using phenol-water system. Solid-liquid phase diagram. Eutectic mixture. Nernst distribution law. Solvent extraction. Vapour pressure of solution. Ideal solutions, ideally diluted solutions and colligative properties. Raoult's law. Thermodynamic derivation of colligative properties of solution (using chemical potentials) and their interrelationships. Abnormal colligative properties. Molecular Spectroscopy (Marks = 10) Light-matter interaction, transition moment integral, selection rule, Spectroscopic arrangements. Rotational spectroscopy of diatomic molecules: rigid rotor model, selection rules, spectrum, characteristic features of spectral lines (spacing and intensity). Determination of bond length, effect of isotopic substitution. Vibrational spectroscopy of diatomic molecules: SHO model, selection rules, spectra; anharmonicity and its consequences on energy levels, overtones, hot bands. Raman Effect. Characteristic features and conditions of Raman activity with suitable illustrations. Rotational and vibrational Raman spectra. Rule of mutual exclusion with examples. Potential energy curves (diatomic molecules), Decay of excited states by radiative and non-radiative paths. Fluorescence and phosphorescence, Jablonsky diagram.
GR B : Thermodynamics in Chemical Engineering ; Marks 25
Paper 9 Full Marks 50
Polymer Science and Engineering (AC-204) ; MARKS 50 Unit-I : Chemistry of high Polymer Monomer , functionality , degree of polymerization, Carother's equation, classification of polymers, glass transition, melting transition , criteria for rubberiness, Polymerization methods: addition and condensation & their kinetics, cationic and anionic polymerization & their kinetics, stereo-regular ploymerization , coploymerization , monomer reactivity ratios and its significance , Kinetics, types of copolymerization, Polymerization techniques: bulk , solution, suspension, emulsion. Unit-II: Synthesis, Properties and Applications Thermosetting Polymers : Phenol-formaldehyde resin, Urea-formaldehyde and Melamineformaldehyde resins , Epoxy resin. Unsaturated polyester, Alkyds. Comodity and general purpose thermoplastics: Polyethylene, Polypropylene, Polystyrene, Polyvinyl Chloride, Polyesters, Acrylic, PU polymers , Engineering Plastics : Nylon , Polycarbonate, Polybutylene Terephthalate , Polysulfone, Polyphenylene oxide , Acrylonitrile butadiene styrene, Fluoropolymers. Natural and synthetic rubbers: Recovery of NR hydrocarbon from latex , Styrene -Butadiene rubber, Polychloroprene Rubber , Nitrile rubber, Butyl rubber, Ethylene-propyleneDieneTerpolymer, Polysulphide rubber, Polyacrylic rubber, Silicone, Thermoplastic Elastomers. Unit-III: Polymer blends and composites Different between blends and composites, their significances, Choice of Polymers for blending. blend miscibility-miscible and immiscible blends, thermodynamics, phase morphology, polymer alloys, polymer eutectics , plastic-plastic , rubber-plastic and rubber -rubber blends, FRP , particulate, long and short fibre reinforced composites.
Paper 10 Full Marks 50
(AC-205) ; MARKS 50 COMPUTER APPLICATIONS IN CHEMICAL INDUSTRIES - PRACTICAL
