## 2.45 (7th ed)

$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$

Duby3L
Posts: 72
Joined: Fri Sep 28, 2018 12:26 am

### 2.45 (7th ed)

How come when writing the hybridization for a sigma bond between oxygen and carbon we use the notation (C2sp2,O2sp2), but when we write the notation for the oxygen lone pair we do not include the 2--which refers to oxygen being in the second row--and simply write (Osp2) for the lone pair? So, why do omit the 2 when writing it for a lone pair but not for a sigma or pi bond?

Gary Qiao 1D
Posts: 66
Joined: Fri Sep 28, 2018 12:26 am

### Re: 2.45 (7th ed)

I am guessing since the lone pairs are not part of a sigma or a pi bond, the 2 is not included in the notation. There might not be a need for the distinguishment for the second row when there are no bonds with lone pairs.