Bond angles of See Saw

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

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Julia Lindner 1I
Posts: 35
Joined: Fri Sep 28, 2018 12:17 am

Bond angles of See Saw

Postby Julia Lindner 1I » Wed Nov 28, 2018 1:32 pm

According to an answer in the textbook (2E.11 a), the bond angles for a see saw shape (SCl4) are the same as those for trigonal bipyramidal- 120 and 90 degrees. Shouldn't the angles be slightly less because of the lone pair?

Clarissa Cabil 1I
Posts: 66
Joined: Fri Sep 28, 2018 12:19 am

Re: Bond angles of See Saw

Postby Clarissa Cabil 1I » Wed Nov 28, 2018 1:55 pm

The bond angles for trigonal bipyramidal are 180º, 120º, and 90º and the bond angles for seesaw should be slightly less than 120º and slightly less than 90º because of the lone electron pair. So, I think you're correct, but bond angles do differ according to different molecules.

Sam Kelly 1K
Posts: 30
Joined: Fri Sep 28, 2018 12:16 am

Re: Bond angles of See Saw

Postby Sam Kelly 1K » Wed Nov 28, 2018 2:32 pm

Yeah the angles would be slightly less than 90 and 120 degrees due to the lone pair, but you wouldn't have to give exact numbers on a test or anything


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