CHEM 001B Lecture Notes - Lecture 3: Trigonal Pyramidal Molecular Geometry, Square Planar Molecular Geometry, Tetrahedral Molecular Geometry
9 Mar 2018
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Valence bond theory: valence bond theory: describes a covalent bond as the overlap of half-filled atomic orbitals (each containing a single electron) that yield a pair of electrons shared between the two bonded atoms, proposed by linus-pauling. Molecular geometry: sn = 3 (1 lone pair) trigonal planar electron-pair geometry: bent molecular geometry. Molecular geometry: sn= 4 (1 lone pair) tetrahedral electron pair geometry. Sn = 5 (1 lone pair) trigonal bipyramidal electron-pair geometry. Seesaw molecular geometry (2 lone pair) trigonal bipyramidal electron-pair geometry. Sn = 6 (1 lone pair) octahedral electron-pair geometry. Square pyramidal molecular geometry (2 lone pairs) octahedral electron-pair geometry. Square planar molecular geometry: an orbital on one atom overlaps an orbital on a second atom, the single electrons in each orbital combine to form an electron pair. Sigma ( (cid:895) bond and pi (cid:894) (cid:895) bond: the overlap of two s orbitals (as in h2), the overlap of an s orbital and a p orbital (as in.
