TM cation acting as Lewis acids

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Brian Tangsombatvisit 1C
Posts: 119
Joined: Sat Aug 17, 2019 12:15 am

TM cation acting as Lewis acids

Postby Brian Tangsombatvisit 1C » Fri Dec 06, 2019 11:49 pm

One example Dr. Lavelle did in lecture was [FeCl2(H2O)4], where the charge on iron was +3, so the charge on the overall molecule was +1. Because Fe was a highly charged, small cation, it weakened the O-H bond on one of the H2O's, releasing a proton and therefore acting as a Bronsted acid. It did this in order to make one of the oxygen's have a charge of negative 1, making the overall molecule neutral instead of +1.

Does this occur with every transition metal cation that is hydrated? Or does it only occur in order to maintain neutral charge on the overall coordination compound?

Maggie Eberhardt - 2H
Posts: 97
Joined: Sat Jul 20, 2019 12:16 am

Re: TM cation acting as Lewis acids

Postby Maggie Eberhardt - 2H » Sat Dec 07, 2019 12:53 am

I believe it only occurs in order to make the overall charge of the molecule neutral and not with every hydrated transition metal cation

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