化學(xué)競賽雜化ppt課件-閱讀頁
2025-01-29 10:18本頁面
【正文】 d). This means that the 5 bonds are not equivalent! Square planar: D4h 222222222121212121212121212121214321yxpyshyxpyshyxpxshyxpxshdddd????????????????????????????yxyx ppsd ,22 ??h1 x y ?h3 ?h2 ?h4 Eg. Ni(CN)42 e. dsp2 hybrides (square planar) dsp2雜化，平面四邊形 5 1 2 3 4 6 x y z 23121615zz dpsoc ???222 1212121611zyxx ddpsoc ???? ?222 1212121612zyxy ddpsoc ???? ?222 1212121613zyxx ddpsoc ???? ?222 1212121614zyxy ddpsoc ???? ?23121616 zz dpsoc ???zyxyxz pppsdd , 222 ?f. d2sp3 (sp3d2) hybrides (Octahedral) d2sp3 (sp3d2)雜化，八面體 SFFFFFFSF6 The overlap of the sp3d2 hybrid orbitals on S with the 2p orbitals on the F atoms gives six SF (sp3d2)2p ? bonds 90176。 Structure of ABn Molecules （ Abn分子的結(jié)構(gòu)） 1. AB2 valence electron 6 + 7x2 = 20 H2O, H2S valence electron 8 i. Non linear type(bent) (20 valence electron) ex. OF2 , OCl2, SCl2, TeBr2 O: sp3 hybridization ii. Non linear type(bent) (17~19 valence electron) ex. 18 O3 (valence electron) O: sp2 hybridization + pz b o n d i n ga n t i b o n d i n gnon b o n d i n g ][][][3211212321122121221??????????????????????O O O .. .. .. pz sp2 orbital pz pz 43 48618 :e l e c t r o n s ???43??????antibonding nonbonding bonding Isoelectron analogy: SO2 17 valence electron NO2 19 valence electron ClO2 533343???.. .. iii. Linear type (AB2 16 valence electron) CO2 C: sp hybridization +px +py, b o n d i n ga n t i )]2(2)1([21b o n d i n gnon )]2()1([21b o n d i n g )]2(2)1([21321OCOOOOCO??????????????????????Isoelectron analogy : CO2, NO2+, N2O, N3, COS, BeCl2, HgCl2 O C O434343 , :284416 :e l e c t r o n s yx?????321??????iv. Linear type (AB2 22 valence electron) ICl2 XeF2 sp3d hybridization 167。 Structure of ABn Molecules 3. AB4 Tetragonal Pyramidal type ex. CH4 , NH4+, CCl3 sp3 hybridization dp? bond ex. PO4 3, SO42 dxz pz x x px
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號-1