Where to minimize formal charge


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605208780
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Joined: Wed Sep 18, 2019 12:16 am

Where to minimize formal charge

Postby 605208780 » Tue Dec 03, 2019 12:50 pm

Is there a specific atom in a molecule that we should try and get to have a 0 formal charge? If there is a charge we can't avoid where should we put it

Jessica Tran_3K
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Where to minimize formal charge

Postby Jessica Tran_3K » Tue Dec 03, 2019 1:09 pm

The negative charge should usually be placed on the most electronegative atom (typically oxygen)!

Jasmine Vallarta 2L
Posts: 102
Joined: Sat Aug 17, 2019 12:18 am

Re: Where to minimize formal charge

Postby Jasmine Vallarta 2L » Tue Dec 03, 2019 1:37 pm

My TA said to always put it on oxygen as a rule of thumb

Althea Zhao 1B
Posts: 101
Joined: Mon Jun 17, 2019 7:24 am

Re: Where to minimize formal charge

Postby Althea Zhao 1B » Tue Dec 03, 2019 4:58 pm

You usually want 0 charge on the central atom.

Janet Nguy 2C
Posts: 115
Joined: Sat Aug 24, 2019 12:17 am

Re: Where to minimize formal charge

Postby Janet Nguy 2C » Tue Dec 03, 2019 5:03 pm

If you absolutely can't have zero formal charge, be sure to put the negative charge on the most electronegative atom and the positive charge on the most electropositive atoms. Usually if you see Oxygen it will have a negative formal charge because typically it is more electronegative than other atoms.


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