## Problem 2E 7

(Polar molecules, Non-polar molecules, etc.)

rachelle1K
Posts: 109
Joined: Sat Sep 07, 2019 12:16 am

### Problem 2E 7

Why are all the bond lengths identical in SOCL2? Doesn't Sulfur have a lone pair so that would repel the other atoms and create a difference in bond length?

Vicki Liu 2L
Posts: 101
Joined: Sat Aug 24, 2019 12:15 am

### Re: Problem 2E 7

All the bond lengths are equal in SOCl2 because when you draw the ideal Lewis structure, you see that SOCl2 has resonance. This means that the bonds will all average out to the same length. Also, lone pairs don’t influence bond length, but they do influence bond angle.

Joelle 3L
Posts: 50
Joined: Sat Jul 20, 2019 12:16 am

### Re: Problem 2E 7

The bond lengths would equal the same due to delocalized electrons, meaning there would be resonance structures if you drew it out. The bonds would be the average and the same.

005162520
Posts: 101
Joined: Tue Sep 24, 2019 12:17 am

### Re: Problem 2E 7

How would you draw the resonance structure for SOCl2?

Brynne Burrows 3K
Posts: 52
Joined: Thu Jul 25, 2019 12:16 am

### Re: Problem 2E 7

005162520 wrote:How would you draw the resonance structure for SOCl2?

S is the central atom, double bonded to the Oxygen atom, single bonded to both Chlorine's, with a lone pair attached to the sulfur.

Jamie Hwang 2F
Posts: 104
Joined: Thu Jul 25, 2019 12:16 am

### Re: Problem 2E 7

I think there might be some confusion in the question. Question 2E.7 asks "b) How many different OSCl bond angles are there in this molecule? c) What values are expected for the OSCl and ClSCl bond angles?