Non-equivalent hybridization sp3-hybrides H:N:H 出 for NH: 0=107.3° a+(1-a)c0s107.3°=0 a=0.23 L,=1-3*0.23=0.31 Other example L,=3-3*0.77=0.69 Vbonding=V0.23s+V0.77p=0.48s+0.88p PH3,PF3,NF3, Wome-m=V0.31s+V0.69p=0.56s+0.83p For d-s-p hybridization,the angles between two hybrid orbitals can be calculated by:(where a,B and y are the component ofs,p and d orbitals) a*pcoaco 3 for d'spa=1 6Bs1 31 11 13 6 2 -2-0 cos0=0,cos02=-1 Octahedral 01=90°，02=180H N H H sp3 − hybrides X y z t 1 t 2 t 3 t 4 s p s p s p s p L L for NH lone pair bonding p s 0.31 0.69 0.56 0.83 0.23 0.77 0.48 0.88 3 3*0.77 0.69 1 3*0.23 0.31 0.23 (1 ) cos107.3 0 107.3 3 = + = + = + = + = − = = − = = + − = = ψ − ψ α α α θ o o Other example PH3, PF3, NF3, Non-equivalent hybridization For d-s-p hybridization, the angles between two hybrid orbitals can be calculated by: (where α, β and γ are the component of s, p and d orbitals) o o 90 , 180 cos 0, cos 1 ) 0 2 1 cos 2 3 ( 3 1 cos 2 1 6 1 , 3 1 , 2 1 , 6 1 for d sp , ) 0 2 1 cos 2 3 cos ( 1 2 1 2 2 2 3 2 = = = = − + + − = = = = + + − = θ θ θ θ θ θ α β γ α β θ γ θ Octahedral 5 1 3 x y z