Talk:Cyclobutadieneiron tricarbonyl

Aromaticity

Although it is rather easy to claim aromaticity, it is rather peculiar for cyclobutadienes. Is there any quantum mechanical basis for this claim? T.vanschaik (talk) 13:31, 26 April 2012 (UTC)

My comment: It undergoes Friedel-Crafts. Also it is not cyclobutadiene - it is a derivative of cyclobutadiene. Possibly better viewed as a nido-FeC4 cluster.--Smokefoot (talk) 13:37, 26 April 2012 (UTC)

What sort of evidence are we looking for? I think the claim that the anti-aromatic cyclobutadiene turns aromatic once coordinated to a metal is repeated often enough. The system looks trivial to compute. Not going to dabble in OR, but just us talking here - are we looking for all in phase p orbitals on the cyclobutadiene ring? --Rifleman 82 (talk) 05:23, 27 April 2012 (UTC)

you could consider the iron to be 2+

and the cyclobutadiene as cyclobutadiendiide 98.97.118.150 (talk) 15:36, 25 October 2022 (UTC)

cyclobutendiide 98.97.118.150 (talk) 15:37, 25 October 2022 (UTC)

because of pi donations from iron's dxz and dyz orbitals 216.166.170.138 (talk) 22:34, 26 October 2022 (UTC)

Wiki Education assignment: Organometallics

This article was the subject of a Wiki Education Foundation-supported course assignment, between 6 February 2023 and 24 March 2023. Further details are available on the course page. Student editor(s): Circador (article contribs).

— Assignment last updated by Circador (talk) 21:26, 4 March 2023 (UTC)