Chemistry
CHM 332: Principles of Solid State Chemistry and Crystallography (4)
Pre-requisites (Desirable): CHM 101, CHM 102 and CHM 301
Learning Objectives:
To learn the concepts related to the arrangement of atoms in solids and how these influence the properties of matter.
Course Contents:
- Concepts: Structures of Ionic Solids (crystal chemistry), Metals and Alloys, Band Theory in Solids (Metals, Semiconductors, Inorganic Solids), crystal defects, non-stoichiometric compounds, solid solutions, dislocations and stacking faults.
- Structure and Bonding in Solids: Factors governing formation of crystal structures, Kapustinskii's equation, Sanderson's Model, Mooser-Pearson plots, non-bonding electron effects.
- Phase Transitions: Buergers's (reconstructive and displacive), Ubbelohde's Classification (continuous and discontinuous), Applications of G-T diagrams, kinetics, critical size and nucleation rate, Martensitic, order disorder transitions.
- Structure Property Correlation in Materials: Optical, Dielectric and Superconducting properties.
- Symmetry in the Solid State: Unit Cell, Crystal Systems, Asymmetric Unit, Crystal lattices (2D), Bravais Lattices (3D), Miller planes (crystallographic directions and multiplicities) , d-spacing formula (resolution),Crystallographic Point and Space groups (equivalent points, Wyckoff positions, site occupancy factor).
- Elements of X-ray diffraction: Scattering by an Atom and Crystal, Bragg's Law, Reciprocal Lattice, Reflecting and Limiting sphere of reflection, systematically absent reflections.
- Crystal structure determination: Structure Factor and Phase Problem, Electron Density. Maps, Anomalous Scattering, Thermal Motion Analysis , refinement and crystallographic parameters in crystal structure analysis, dynamic and static disorder, the physical interpretation of molecular (Bond lengths, angles and torsions) and crystal structures (Packing Diagram), Rietveld method in Powder diffraction.
- Solid State Chemistry and its Applications: West, A. R. John Wiley & Sons, UK, 1987.
- Structure and Bonding in Crystalline Materials: Rohrer, G. S. 1st edition, Cambridge University Press, UK, 2001.
- Basics of Crystallography and Diffraction: C. Hammond.
- X-ray Structure determination: A practical guide: G. H. Stout and L. H. Jensen.
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