Chemical Forums

Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: owlpower on December 02, 2018, 09:56:34 AM

Title: Transition metal complex isomers
Post by: owlpower on December 02, 2018, 09:56:34 AM

I've never come across such a complex, and I only know fac and mer isomers for complexes of the type MA3B3.

Still, even with MA2B4, I think there is a scenario where mer can be formed (trans case).

I'd say 2 of the geometric isomers I've drawn is of the fac-mer type. Is this correct?


https://imgur.com/2Bx37so

Title: Re: Transition metal complex isomers
Post by: mjc123 on December 03, 2018, 04:55:46 AM

Like you, I associate fac-mer isomerism with MA₃B₃ complexes, and cis-trans with MA₄B₂. Personally I would say none of your isomers are fac-mer.

Have you got all the linkage isomers? I don't know if they can be made practically, but theoretically you could have one -NO₂ and one -ONO.

Title: Re: Transition metal complex isomers
Post by: owlpower on December 03, 2018, 10:21:42 AM

Yes, I agree with you on both points. I don't think there should be any fac-mer isomers.

I also thought it would be practically impossible to have one -NO2 and -ONO, but in theory it's definitely possible.