Lewis Bases and Lone Pair Electrons

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Joey_Okumura_1E
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Lewis Bases and Lone Pair Electrons

Postby Joey_Okumura_1E » Fri Nov 06, 2020 8:55 pm

Do Lewis bases tend to have lone pair electrons on their central atoms or lone pair electrons on any of the atoms?

Lucy_Balish_3G
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Re: Lewis Bases and Lone Pair Electrons

Postby Lucy_Balish_3G » Fri Nov 06, 2020 9:48 pm

You should always put the lone pairs on the central atom when you are drawing a lewis structure. That way you can ensure that the outer electrons have filled valence shells with a low formal charge and consequently know you are finding the most stable configuration.

Aaron Akhavan-Dis1B
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Re: Lewis Bases and Lone Pair Electrons

Postby Aaron Akhavan-Dis1B » Fri Nov 06, 2020 10:22 pm

Joey_Okumura_1F wrote:Do Lewis bases tend to have lone pair electrons on their central atoms or lone pair electrons on any of the atoms?

I think as long as you satisfy the octet rule, you should be fine. A lot of central atoms are bonded with multiple other atoms but as long as they all have 8 valence electrons, and are the most stable configuration, you're good. :D

Crystal Pan 2G
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Re: Lewis Bases and Lone Pair Electrons

Postby Crystal Pan 2G » Fri Nov 06, 2020 10:24 pm

In the example Dr. Lavelle gave during lecture, the lone pair donor(lewis base) was NH3 and it was on the N atom, and the lone pair acceptor(lewis acid) is B from BF3.


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