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HYBRIDISATION AND GEOMETRY:

SN
CN
Hybridisation
Geometry
Bond angle
Examples
1
2
Sp
Linear
180
[Cu(CN)2]-, [Ag(CN)2]-, [Au(CN)2]-, [Ag(Cl)2]-,
[Ag(NH3)2]+,
2
3
Sp2
Trigonal planer
120
[Hg(I3)2]2-,
3
4
Sp3
Tetrahedral
109. 28
[Ni(Cl)4]2-,[Zn(NH3)4]2+,
[Cd(CN)4]2-,[Hg(I)4]2-,
[Ag(S2O3)2]2,[Co(SCN)4]2
4
4
d3S                    /dxy,dyz,dzx,S
tetrahedral
109.28
CrO42-, MnO41-, MnO42-
VO43-, Cr2O72-
5
4
dsp2             /dx2-y2Sp3
Square planer
90
[Ni(en)2]2+,[Cu(NH3)4]2+,
[Ag(F)4]1-,[Pt(Cl)4]2-,
[Au(F)4]1-,[Pd(H2O)4]2+,
[Ni(dmg)2]
6
5
dz2Sp3                       / Sp3dz2
TBP
120, 90
[Fe(CO)5] , [Mn(CO)5] ,
[Cu(Cl)5]3
7
5
dx2-y2Sp3
Square pyramidal
90, 90
[Ni(CN)5] 3-
8
6
d2Sp3               /dx2-y2,dz2Sp3
Octahedral
90, 90
[Cr(NH3)6] 3+ , [NiF6] 2- ,
[Co(H2O)6] 3+ , [IrF6] 3-,
[Rh(H2O)6] 3+ , [Ptcl6] 2- ,
[Pd(H2O)6] 4+,[Co(NH3)6] 3+
9
6
Sp3d2                          / Sp3 dx2y2,dz2
Octahedral
90, 90
[Fe(NH3)6] 2 ,[Fe(H2O)6] 3+  
[Cr(H2O)6]2,[Ni(en)3]2+
[Mn(NH3)6] 2+

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