化學hybridization

Electronic configuration of nitrogen is "1s2 2s2 2p3"

In aniline, N is linked with three atoms(two hydrogen and one carbon) by means of three sigma bonds. Besides, the nitrogen atom has one lone pair.
Hence, N needs four orbitals(one for lone pair, three for sigma bond); thus, its hybridization is sp3

2011-10-03 16:40:49 補充：
Oh, I see...