Advanced Concepts of Atomic Structure And Chemical Bonding

Course Code2874Marks: 50Credits: 2Class Hours: 60Course TitleAdvanced Concepts of Atomic Structure And Chemical Bonding 1.Atomic Structure: Wave-Particle duality, de Broglie’s hypothesis for matter waves and its consequences, standing waves and quantization, Heisenberg’s uncertainty principle, significance of the uncertainty principle, Schrödinger’s wave equation and its application to hydrogen atom, solutions of Schrödinger wave equation, quantum numbers and their properties, radial wave functions, angular wave functions and shapes of the orbitals, probability distribution, radial and angular nodes, many electron atoms, sequence of energy levels, electronic configuration of atoms. 2.Chemical Bonds:Chemical bond, types of chemical bonds,(i)Ionic Bond: Ionic bond and its uniqueness, properties of ionic compounds, close packing, close-packed structures, interstitial sites, radius ratio, radius ratio rule, coordination number and radius ratio value, structure of NaCl, lattice energy of ionic crystals, theoretical calculation of lattice energy of NaCl crystal, Madelung constant, experimental determination of lattice energy of NaCl crystal, factors affecting the magnitude of lattice energy of ionic solids, applications of lattice energy calculation.(ii)Covalent Bond:Covalent bond, properties of covalent bond and covalent bonded compounds, overlap integral and bond strength, polarity of bonds, dipole moment and percentage ionic character, factors affecting the magnitude of dipole moment, valence bond theory, hybridization, mathematical formulation of sp and sp2hybrid orbitals, limitations of valence bond method, molecular orbital theory, the LCAO method, molecular orbital diagram, frontier orbitals -HOMO and LUMO, Mixing of MOs and the correlation diagrams, MO descriptions of heteronuclear diatoms, HF and CO, Walsh diagram, MO descriptions of polyatoms like H2O, BeH2, and C6H6 involving π bonding electrons, comparison and contrast between VBT and MOT, applications of frontier orbital concept.(iii)Bonding in Metals:Metallic bond, factors favoring the formation of metallic bond, theories of metallic bond -electron sea theory, molecular orbital theory, characteristics of metals, conductors, semiconductors and insulators.(iv)Hydrogen Bond:Hydrogen bond, types of hydrogen bond, theories of formation of hydrogen bond –electrostatic approach, molecular orbital approach, properties of hydrogen bondand hydrogen bonded compounds, hydrogen bond in biological systems. Books Recommended:1.Chemical Structure and Bonding, R. L. DeKock and H. B. Gray, University Science Books.2.Inorganic Chemistry, G. L. Miessler and D. A. Tarr, Prentice-Hall of India Private Limited.3.Atomic Structure and the Chemical Bond, M. Chanda, Tata McGraw-Hill.4.Physical Chemistry, G. M. Barrow, McGraw-Hill.5.Inorganic Chemistry, D. F. Shriver, P. W. Atkins and C. H. Langford, Oxford University Press.6.Valence and Molecular Structure,E. Cartmel and G. W. A. Fowles, Butterworths.