Group theory ppt - Lecture notes 12,bsc,msc PDF

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its about group theory- symmetry and symmetry operations....

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Symmetry and Group Theory Definitions of group, relation between orders of a finite group and its subgroup, Symmetry elements and symmetry operations, products of symmetry operations, Schonflies symbols, Matrix representation of symmetry operations, Classification of molecules into point groups. Reducible and irreducible representations. Transformation properties of p-orbital and rotation vector. The great orthogonality theorem (without proof), character tables, Numerical problems. The direct product. Applications of Group Theory- Molecular vibrations, selection rules for electronic transitions, infra red and Raman spectra.

Shapes of polyatomic molecules 2 BP

Linear

1 unpaired and 2 BP

Bent

2 BP & 1 l LP

Bent

2 BP & 2 LP

Bent

2 BP & 3 LP

Linear

3 BP

Triangular planar

3 BP & 1 LP

Pyramidal

3 BP & 2 LP

T shaped

Shapes of polyatomic molecules 4 BP

Tetrahedral

4 BP & 1 l LP

Sea -Saw

4 BP & 2 LP

Square planar

5 BP

Trigonal bipyramidal

5 BP & 1LP

Square pyramidal

5 BP & 2LP

Pentagonal planar

Identifying the proper axis of rotation...