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from_che - 4—20 Localized-bond structure for C3H6. 4—21...

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Unformatted text preview: 4—20 Localized-bond structure for C3H6. 4—21 The a-bond structure for C1H4. 4'28 bonding in CzH‘, using Representation of the Iar orbitals with 2p—2p overlap to localized molecu form e 1: bond. NW °‘ Orbital hybridization Molecular shape Example lone pair: 5 1 sp‘ 5 2 011?: XeFa. 13'. 5 3 IF: SF” 0-: 6 0 lpad’ safe- 6 1 IR, BrFs XeF4, 1174’ :p' hybrid tibial: 4-9 Formation of four equivalent, tetrahedral sp5 hybrid orbitals. mug...- Wm.»- “mm-m «-mg-mewfim H Localized molecular orbital theory for moloculos with lone oloctron pairs 11. 4—19 Localized-bond structure for H20 with spa orbitals for oxygen. Using this model we predict an H—O—H bond angle of 109° 28’. 'pometu 3433/\ sq: tum; pampon sodan ulnoolow ' 22"? PPWdN main: aim 181mm: 4—5 Formation of two sp orbitals by linear combination of 25 and 2p. orbitals. 110 Polynomlo moloculoo 4—: localized electron-pair bond: Z <——H. 4—0 Localized electron-pair bonds for BoHa that are formed from two oquivalont :p hybrid orbitals centered at the Be nucleus. Each Bo :p Orbital forms a localized bonding molecular orbital with a hydrogen 1: orbital. :p' hybrid orbital: 4—9 Fermation of four equivalent, tetrahedral sp“ hybrid orbitals. o = 109°zs' R (C—H)-1.093 A 4—10 4—11 Localized electron-pair structure for CH‘. Tetrahedral molecular structure of CH‘. :p' hybrid crumb 4-9 Formation of four equivalent, tetrahedral sp5 hybrid orbitals. H ,40- - - - - 71 / I I’ I I I | .,’ l f l QH I I l | I l I N i l l JI- I ; | — 4. - .. .. 4-15 ' / , ’ r I , H Tetrahedral placement of four electron pairs in NH, to ‘ , l I / minimize electronic repulsions. 4—16 Localized bond-orbital structure for NHa Lone pair/4r that uses an“ hybrid orbitals for nitrogen. ...
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This note was uploaded on 02/14/2011 for the course CHEM 20 taught by Professor Baugh during the Fall '10 term at UCLA.

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from_che - 4—20 Localized-bond structure for C3H6. 4—21...

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