Resonance and VSEPR

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

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Amy Kumar 1I
Posts: 114
Joined: Thu Jul 11, 2019 12:15 am

Resonance and VSEPR

Postby Amy Kumar 1I » Sun Nov 17, 2019 11:29 pm

Are resonance structures considered when determining molecular shape?

Maya Serota 3G
Posts: 53
Joined: Tue Sep 24, 2019 12:17 am

Re: Resonance and VSEPR

Postby Maya Serota 3G » Sun Nov 17, 2019 11:31 pm

No ! They don’t determine or change a molecules shape when drawing the VSEPER models.

Drake Choi_1I
Posts: 58
Joined: Sat Aug 17, 2019 12:15 am

Re: Resonance and VSEPR

Postby Drake Choi_1I » Sun Nov 17, 2019 11:31 pm

No

Venus_Hagan 2L
Posts: 104
Joined: Fri Aug 02, 2019 12:16 am

Re: Resonance and VSEPR

Postby Venus_Hagan 2L » Sun Nov 17, 2019 11:32 pm

I don't think so because double and triple bonds are still considered one region of electron density.

san_2F
Posts: 118
Joined: Sat Jul 20, 2019 12:15 am

Re: Resonance and VSEPR

Postby san_2F » Sun Nov 17, 2019 11:33 pm

No they are not considered because double bonds and triple bonds are not visually represented in vsper models.

Tiffany Dong_4e
Posts: 51
Joined: Wed Sep 11, 2019 12:17 am

Re: Resonance and VSEPR

Postby Tiffany Dong_4e » Sun Nov 17, 2019 11:34 pm

They aren't. VSEPR is only determined by the regions of electron density and amount of bonding/lone pairs.

Yiyang Jen Wang 4G
Posts: 76
Joined: Wed Nov 21, 2018 12:18 am

Re: Resonance and VSEPR

Postby Yiyang Jen Wang 4G » Sun Nov 17, 2019 11:41 pm

No. I don’t think resonance would have any effect on VESPR.

Mulin_Li_2J
Posts: 105
Joined: Sat Aug 17, 2019 12:16 am

Re: Resonance and VSEPR

Postby Mulin_Li_2J » Sun Nov 17, 2019 11:48 pm

Since VSEPR model only take into account the number of electron density regions surrounding the central atom, whether single bond, double bond, triple bond, or combined resonance bond is formed between two atoms, they are still considered as only a single electron density region, and thus VSEPR rule still applies.

gferg21
Posts: 51
Joined: Sat Aug 17, 2019 12:17 am

Re: Resonance and VSEPR

Postby gferg21 » Sun Nov 17, 2019 11:51 pm

The resonant structures should not have any impact on how the VSEPR structure is determined mostly because each of the resonant structures can be made into the same shape as the VSEPR (or at least look alike)

VioletKo3F
Posts: 103
Joined: Sat Sep 07, 2019 12:18 am

Re: Resonance and VSEPR

Postby VioletKo3F » Sun Nov 17, 2019 11:53 pm

Resonance structures do not affect vsepr structures - they only explain molecular shape.


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