4.91

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

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Natalie LeRaybaud 1G
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Joined: Thu Jul 13, 2017 3:00 am

4.91

Postby Natalie LeRaybaud 1G » Tue Nov 28, 2017 6:40 pm

Can some one please explain part B to this problem?

Benzyne, C6H4, is a highly reactive molecule that is detected only at low temperatures. It is related to benzene in
that it has a six-membered ring of carbon atoms; but, instead of three double bonds, the structure is normally drawn with two double bonds and a triple bond. (a) Draw a Lewis structure of the benzyne molecule. Indicate on the structure the hybridization at each carbon atom. (b) On the basis of your understanding of bonding, explain why this molecule might be highly reactive.

Curtis Tam 1J
Posts: 105
Joined: Thu Jul 13, 2017 3:00 am

Re: 4.91

Postby Curtis Tam 1J » Tue Nov 28, 2017 7:24 pm

Part b should be in the answer manual. Basically, when the carbon atom has two regions of electron density, it is sp hybridized. Therefore, its desired bond angle would want to be 180 degrees. However, the bond angle about the carbon has been strained so that it has a bond angle of 120 degrees. It is highly reactive because it is, in laymen's terms, ready to spring back to its most desired bond angle at 180.

Karen Zheng_2H
Posts: 40
Joined: Fri Sep 29, 2017 7:04 am

Re: 4.91

Postby Karen Zheng_2H » Thu Nov 30, 2017 10:45 am

This really helped me, thank you!!


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