1But we kwn 2 use MOT only for homonuclear diatiomic molecules............!
Why does C-N length increase in CN+ as compared to CN- ?
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6 Answers
1
1i dnt guess dat c has 6 n n has 7 so 13 .....nw apply taht bt just use d one for elemts grtr then N
i mean 1s 1s@ 2s 2s@ 2pz 2px 2py 2px @ 2py@ 2pz@
yeh wala
1MOT can be used for heteronuclear diatomic molecules also , go through Maham nad Meyers for a detailed and thorough understanding .
1e can use MOT for compounds like CN- n CO.. like these wich have comparable no of electrons....
1by M.O.T,
for CN- ,
CN- hav 6+8 =14 electron,hence its electronic configurtion is,-
σ1s2σ*1s2σ2s2σ*2s2(Λ2px2≈Λ2py2)σ2pz2
so , B.O. =( bonding electron + non bonding electron) /2
=(10 - 4) /2 = 3
for CN+ ,
CN+ hav 6 + 6 =12 electron,
its electronic configuration is,
σ1s2σ*1s2σ2s2σ*2s2(Λ2px2≈Λ2py2)
so B.O. = (8 - 4) / 2 = 2
as bond order nd bond length r inversly related , so it iz.