A Co₂N₂ Diamond‐Core Resting State of Cobalt(<scp>I</scp>): A Three‐Coordinate Co^I Synthon Invoking an Unusual Pincer‐Type Rearrangement

Abstract

Unmasking the truth: The dimer [{(μ2-PNP)Co}2] (Co light blue, N dark blue, P green, C gray, only one carbon atom of the isopropyl groups shown; PNP=[N{2-P(CHMe2)2-4-MeC6H3}2]−) contains a Co2N2 diamond core and bridging PNP ligands. Upon reaction with ClCPh3, CO, or N2, rearrangement of the PNP ligands to a terminal chelating mode is observed to give four-coordinate Co complexes such as [{(PNP)Co}2(μ2-N2)]. Supporting information for this article (including experimental details and crystallographic data) is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z504343_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.