Syllabus (CHEMISTRY)

Course Type: MAJ-8

Semester: 6

Course Code: BCEMMAJ08C

Course Title: Inorganic Chemistry – III

(L-P-Tu): 4-2-0

Credit: 6

Practical/Theory: Combined

Course Objective: COURSE OBJECTIVE OF MAJOR - 8: The syllabus of Major -8 has been designed to provide the students with thorough understanding of the Crystal Field Theory, its advantages over VBT, its challenges, and its achievements. After completing this course, a stud

Learning Outcome: COURSE OUTCOMES OF MAJOR – 8: CO- 8.1 Thorough understanding of Co-ordination chemistry in the light of VBT, CFT, LFT. CO- 8.2 Understanding of the colour and spectra of co-ordination Compounds and their magnetic properties. CO- 8.3

THEORY:

Coordination Chemistry-II (24L)

VB description and its limitations. Elementary Crystal Field Theory: splitting of dⁿ configurations in octahedral, square planar and tetrahedral fields, crystal field stabilization energy (CFSE) in weak and strong fields; pairing energy. Spectrochemical series. Jahn- Teller distortion. Octahedral site stabilization energy (OSSE). Metal-ligand bonding (MO concept, elementary idea), sigma- and pi bonding in octahedral complexes (qualitative pictorial approach) and their effects on the oxidation states of transitional metals (examples). Magnetism and Colour: Orbital and spin magnetic moments, 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); d-d transitions; L-S coupling; qualitative Orgel diagrams for 3d¹ to 3d⁹ ions. Selection rules for electronic spectral transitions; spectrochemical series of ligands; charge transfer spectra (elementary idea).

REACTION KINETICS & MECHANISM: (10 L)

Introduction to inorganic reaction mechanisms. Substitution reactions in square planarcomplexes, Trans- effect and its application in complex synthesis, theories of trans-effect, Mechanism of nucleophilic substitution in square planar complexes, Thermodynamic and Kinetic stability, Kinetics of octahedral substitution, Ligandfield effects and reaction rates, Mechanism of substitution in octahedral complexes.

RADIOACTIVITY: (10 L)

Nuclear Stability and binding Energy, Nuclear Models and Elementary Idea, Magic Number. Artificial Radioactivity, Transmutation, Fission, Fusion, Spallation, Uses of Radioactivity.

NOBLE GASES: (4L)

Occurrence and uses, rationalization of inertness of noble gases, Clathrates; preparation and properties of XeF₂, XeF₄ and XeF₆; Nature of bonding in noble gas compounds (Valence bond treatment and MO treatment for XeF₂ and XeF₄). Xenon oxygen compounds. Molecular shapes of noble gas compounds (VSEPR theory).

GROUP CHEMISTRY OF S- AND P-BLOCK ELEMENTS: (12 L)

Relative stability of different oxidation states, diagonal relationship and anomalous behaviour of first member of each group. Allotropy and catenation. Study of the following compounds with emphasis on structure, bonding, preparation, properties and uses. Beryllium hydrides and halides. Boric acid and borates, boron nitrides, borohydrides (diborane) and graphitic compounds, silanes, Oxides and oxoacids of nitrogen, phosphorus, sulphur and chlorine. Interhalogen compounds, polyhalide ions, pseudohalogens, fluorocarbons and basic properties of halogens.

READING REFERENCES:

1. Lee, J. D. Concise Inorganic Chemistry ELBS, 1991.
2. Douglas, B.E. and McDaniel, D.H. Concepts & Models of Inorganic Chemistry Oxford, 1970.
3. Atkin, P. Shriver & Atkins’ Inorganic Chemistry 5th Ed. Oxford University Press (2010).
4. Cotton, F.A., Wilkinson, G. and Gaus, P.L., Basic Inorganic Chemistry 3^rd Ed.; Wiley India.

5. Sharpe, A.G., Inorganic Chemistry, 4th Indian Reprint (Pearson Education), 2005.

6. Huheey, J. E.; Keiter, E.A. & Keiter, R.L. Inorganic Chemistry, Principles of Structure and

Reactivity 4th Ed., Harper Collins 1993, Pearson,2006.

7. Das, Asim. K.; Fundamentals Concepts of Inorganic Chemistry, Vol 1-7, 3^rd Ed., CBS Publishers.

8. Miessler, G. L., Fischer, P. J., Tarr, D. A., Inorganic Chemistry, Pearson, 5th Edition.

PRACTICALS:

1. Standardization of Na₂EDTA by Zn(II).

2. Determination of Hardness of water due to Calcium and Magnesium.

3. Preparation of Tris-(ethylenediamine) nickel(II) chloride.

4. Preparation of [Fe(acac)₃].

REFERENCES FOR PRACTICALS:

1. Mendham, J., A. I. Vogel’s Quantitative Chemical Analysis 6th Ed., Pearson, 2009.
2. Mukherjee, G. N., Advanced Experiments in Inorganic Chemistry, U. N. Dhur & Sons Private Ltd, Kolkata – 700073.
3. Mukherjee, G. N., University Handbook of Undergraduate Chemistry Experiments, University of Calcutta, 2003.

4. Nad, Mahapatra and Ghoshal, An Advance Course in Practical Chemistry, New Central Book Agency, Kolkata.