VSEPR handout

VSEPR handout - Trigonal bipyramid Trigonal bipyramid AsF 5...

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VSEPR Theory (Molecular Shapes) A = the central atom, X = an atom bonded to A, E = a lone pair on A Note: There are lone pairs on X or other atoms, but we don't care. We are interested in only the electron densities or domains around atom A. Total Domains Generic Formula Picture Bonded Atoms Lone Pairs Molecular Shape Electron Geometry Example Hybridi -zation Bond Angles 1 AX 1 0 Linear Linear H 2 s 180 AX 2 2 0 Linear Linear CO 2 2 AXE 1 1 Linear Linear CN - sp 180 AX 3 3 0 Trigonal planar Trigonal planar AlBr 3 AX 2 E 2 1 Bent Trigonal planar SnCl 2 3 AXE 2 1 2 Linear Trigonal planar O 2 sp 2 120 AX 4 4 0 Tetrahedral Tetrahedral SiCl 4 AX 3 E 3 1 Trigonal pyramid Tetrahedral PH 3 AX 2 E 2 2 2 Bent Tetrahedral SeBr 2 4 AXE 3 1 3 Linear Tetrahedral Cl 2 sp 3 109.5
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Total Domains Generic Formula Picture Bonded Atoms Lone Pairs Molecular Shape Electron Geometry Example Hybridi -zation Bond Angles AX 5 5 0
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Unformatted text preview: Trigonal bipyramid Trigonal bipyramid AsF 5 AX 4 E 4 1 See Saw Trigonal bipyramid SeH 4 AX 3 E 2 3 2 T shape Trigonal bipyramid ICl 3 5 AX 2 E 3 2 3 Linear Trigonal bipyramid BrF 2-sp 3 d 90 and 120 AX 6 6 0 Octahedral Octahedral SeCl 6 AX 5 E 5 1 Square pyramid Octahedral IF 5 6 AX 4 E 2 4 2 Square planar Octahedral XeF 4 sp 3 d 2 90 Notes 1. There are no stable AXE 4 , AX 3 E 3 , AX 2 E 4 or AXE 5 molecules. 2. All bonds are represented in this table as a line whether the bond is single, double, or triple. 3. Any atom bonded to the center atom counts as one domain, even if it is bonded by a double or triple bond. Count atoms and lone pairs to determine the number of domains, do not count bonds. 4. The number of bonded atoms plus lone pairs always adds up to the total number of domains....
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This note was uploaded on 12/09/2011 for the course CHEM 1 taught by Professor Staff during the Summer '11 term at Simon Fraser.

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VSEPR handout - Trigonal bipyramid Trigonal bipyramid AsF 5...

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