Details of CH3201 (Spring 2021)
| Level: 3 | Type: Theory | Credits: 4.0 |
| Course Code | Course Name | Instructor(s) |
|---|---|---|
| CH3201 | Main Group elements I | Debabrata Mukherjee |
| Syllabus |
|---|
| 1. Introduction (3 lectures).
Periodic table from atomic structure standpoint; Boundaries and proprietary differences between main group and transition elements; debatable position of Zn (main group or transition metal?).Significant uses of main group elements and compounds. 2. Periodicity in the properties of main group atoms and their elemental forms.(8 lectures) Effective nuclear charge; Ionization energies; Electron affinities; Size (radii); Polarizability; Diagonal relationship; Elemental properties across Individual groups; Metals, non-metals, and metalloids; Allotropes of carbon, phosphorus, and other elements; Binding energies. 3. General features and trends in main group compounds.(10 lectures) Oxidation states, valence, and inert pair effect; Homo- and heteronuclear bond energies; elementelement multiple bonds; Bond polarity and the van Arkel diagram; Element hydrides, oxides, and halides; Concept of hypervalency and its MO theory approach; 3-center-4-electron bonding. 4. Acids and bases. (4 lectures) Lewis and Brnsted-Lowry acid-base theory; Boranes and silyliumcations as Lewis acids; Carboranes as super acids; Concept of frustrated Lewis acid-base pair and H2 activation thereof. 5. Concept of kinetic stability.(2 lectures) Schlenk Equilibrium; Concept of ancillary ligands; Importance of Steric Bulk; Secondary stabilizing forces ( -agostic interaction, cation- ---F interaction). 6. Low-valent and unconventional main group compounds.(10 lectures) N-heterocyclic carbenes(NHCs) and their heavier analogs as 2e donors; Cyclic alkyl aminocarbenes (cAACs) in comparison to NHCs; Zn and Mg in formal +1 oxidation states with M-M bonds;B=B, B=Bbonds; Neutral and anionic Al(I); Al=Al bond; sub-valent Gr. 13 metal hydrides: E(I) -H (E = B, Al, Ga) and E(II) 2H4 (E = B, Al); Heavier ketones (Si=O and Ge=O double bonds). |
| References |
|---|
| 1.Chemistry of the Elements, by N.N. Greenwood and A. Earnshaw, Butterworth-Heinmann, London, (1997).
2. Advanced Inorganic Chemistry by F. A. Cotton, G. Wilkinson, C. A. Murillo and M. Bochmann, John Wiley, Chichester, (1999). 3. Inorganic Chemistry by N. Wiberg, A. Holleman, and E. Wiberg, Academic Press, New York, (2001). 4. Concepts and models of Inorganic Chemistry by B. Douglas, D. McDaniel and J. Alexander, John Wiley, New York, (1994). |
Course Credit Options
| Sl. No. | Programme | Semester No | Course Choice |
|---|---|---|---|
| 1 | IP | 2 | Not Allowed |
| 2 | IP | 4 | Not Allowed |
| 3 | IP | 6 | Not Allowed |
| 4 | MR | 2 | Not Allowed |
| 5 | MR | 4 | Not Allowed |
| 6 | MS | 10 | Not Allowed |
| 7 | MS | 4 | Not Allowed |
| 8 | MS | 6 | Core |
| 9 | MS | 8 | Elective |
| 10 | RS | 1 | Not Allowed |
| 11 | RS | 2 | Not Allowed |