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SASTRA Deemed to be University                                                                    M.Sc. (Chemistry)


                                                                                      L   T    P  C
               Course Code: CHY408                                                    4   0    0   4
               Semester: I

                STRUCTURE & REACTIVITY OF INORGANIC COMPOUNDS & NUCLEAR CHEMISTRY

               Course Objectives:
               This course aims to:
                     Understand  the  trends  in  the  modern  periodic  table,  various  theories  of  chemical
                       bonding and acid-base concepts
                     Know the fundamentals of inorganic solid state structures
                     Become familiar with nuclear chemistry and its applications in radioactive technology

               UNIT – I                                                                        14 Hours
               PERIODICITY AND BONDING
               Periodicity: Periodic table, Aufbau principle, Pauli exclusion principle, Hund’s rule, screening
               constants (Slater’s rules), periodic properties: covalent and ionic radii, ionization potential,
               electron  affinity,  electronegativity,  Pauling’s  and  modern  scales  of  electronegativity.
               Nomenclature for atoms with atomic number greater than 100.

               Bonding and Structure: Types of bonds, covalent bonding: Lewis theory, resonance, formal
               charge, VSEPR theory, basic shapes, modifications of the basic shapes, stereochemical rules,
               shapes of inorganic compounds with 2-7 valence shell electron pairs. VB theory, hybridization,
               MO  theory,  MO  diagrams  for  A2,  AB  and  AB2  molecules,  bond  energy,  bond  order,
               polarizability, Fajan’s rules. Ionic bonding: Born-Lande equation and Born-Haber cycle, lattice
               types, lattice energy, radius ratio rule.

               UNIT – II                                                                       16 Hours
               SOLID STATE CHEMISTRY
               Cells  and  description  of  crystal  structure:  close  packing  of  spheres,  packing  efficiency,
               hexagonal close packed (HCP), cubic close packed structures (CCP), body centered cubic
               (BCC), coordination number, diffraction methods. Relative density of packing in simple cubic,
               cubic  CCP,  HCP  and  BCC.  Structures  of  cesium  chloride,  sodium  chloride,  zinc  blende,
               fluorite, rutile and calcite.

               Defects:  Stoichiometric  defects,  Schottky  and  Frenkel  defects,  non-stoichiometric  defects,
               metal excess and metal deficiency defects, extended defects, line and plane defects.

               Electronic structure of solids: Free electron theory, band theory. Refinements to simple band
               theory, k space and Brillouin zones. Conductors, insulators, semiconductors. Band structure
               of conductors, insulators and semiconductors and their applications.

               UNIT – III                                                                      14 Hours
               ACIDS, BASES AND SOLVENTS
               Acid-Base concepts: Brǿnsted–Lowry, Lux–Flood, Lewis definition, Usanovich definition, a
               generalized  acid-base  concept,  steric  effects,  solvation  effects  and  acid-base  anomalies,
               superacids, HSAB principles, classification and theoretical basis of hardness and softness,




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