Determining Coordination number

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CenCen
Posts: 29
Joined: Fri Sep 25, 2015 3:00 am

Determining Coordination number

Postby CenCen » Mon Nov 16, 2015 7:24 pm

how can i determine the coordination number of a compound?

tianying_feng_3J
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

Re: Determining Coordination number

Postby tianying_feng_3J » Mon Nov 16, 2015 7:29 pm

the coordination number is the same as the number of bonds around the central metal.
pay attention to polydentates as they can form more than one bond.
for example, ethylenediamine (en), or oxalate ion (ox), is a bidentate, so it forms two bonds with the metal.
-----[Fe(NH3)6]3+ and [Fe(en)3]3+ are both 6-coordinate complexes


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