Crystal Field Theory: Postulates, splitting of d orbitals in octahedral, tetrahedral, tetragonal and square planar fields, spectrochemical series , factors affecting the magnitude of Δ0, crystal field stabilization energy in weak and strong fields; pairing energy, number of unpaired electrons and high spin (HS) and low spin (LS) complexes, distribution of d-electrons in t2g and eg orbitals in octahedral and tetrahedral complexes, distortion of octahedral complexes- Jahn Teller theorem; use of CFSE values, applications and limitations of CFT.
9.00
Unit II:
Magnetic Properties of Transition Metal Complexes
Types of magnetism, types of magnetic behaviour , orbital and spin magnetic moments, methods of determining magnetic susceptibility by Gouy’s balance, spin only moments of dn ions and their correlation with effective magnetic moments, including orbital contribution; quenching of magnetic moment: super exchange and antiferromagnetic interactions (elementary idea with examples only); applications of magnetic moment data for transition complexes.
10.00
Unit III:
Electronic Spectra of Transition Metal Complexes
Types of electronic transitions; coupling of orbital angular momenta and spin angular momenta (in p2 and d2 configuration), spin orbit coupling/LS coupling, determining the ground state terms – Hund’s rule, hole formulation, calculation of the number of micro states; selection rules- Laporte ‘orbital’ selection rule, spin selection rule, spectroscopic ground states; Orgel energy level diagram for d1 and d9 states, (one electron – one hole ), discussion of electronic spectrum of [Ti(H2O)6]+3 complex, charge transfer spectra (elementary idea).
7.00
Unit IV:
Basic Principles of Analytical Techniques
Data Analysis: errors in chemical analysis, classification of errors (determinate indeterminate, systematic and random errors in chemical analysis with examples, absolute and relative errors), accuracy and precision, minimisation of errors; distribution of random errors, normal error curve , significant figures; statistical analysis – mean and standard deviation; relative standard deviation coefficient of variance, sampling in analysis, rejection of results, presentation of data.
8.00
Unit V:
Gravimetric Methods of Analysis
Requirements of gravimetry: properties of precipitates and precipitating regents, particle size and filterability of precipitates, colloidal and crystalline precipitates, co-precipitation and post-precipitation, washing, drying and ignition of precipitates, precipitation in homogenous media, principles of gravimetric estimation of chloride, zinc, iron and aluminum singly.
Uses of Reagents in gravimetric analysis: Dimethyl Glyoxime, 8-Hydroxy quinoline, Anthranilic acid, Cupferron.
Essential Readings:
A New Concise Inorganic Chemistry; Fifth Edition, J.D. Lee; Blackwell Science, London, 2000.
J. E Huheey, E. A. Keiter, R. L. Keiter: Inorganic Chemistry (Principle and structure and reactivity).
Inorganic Chemistry; Third Edition; D.F. Shriver and P.W. Atkins; Oxford University Press, New York, 1999.
Advanced Inorganic Chemistry, Fifth Edition; F.A. Cotton and G. Wilkinson; John Wiley and Sons, USA, New York, 1988.
Vogel’s Textbook of Quantitative Chemical Analysis; Fifth Edition; G.H. Jeffery, J. Bassett. J. Mendham, R.C. Denney; Longman Scientific and Technical Publication, England, 1991.
