Stepwise preparation of a molecular square from NR,NR- and NH,O-substituted dicarbene building blocks

Schmidtendorf M., Pape T., Hahn F. E.

Abstract

A molecular rectangle has been obtained from two equivalents of a dicarbene-bridged dinuclear platinum complex and two equivalents of β,β-bis(triisopropylsiloxy)phenyl-1,4-diisocyanide. Hydrolysis of the O-Si(iPr) 3 bonds in this complex leads to the formation of two bridging di(NH,O)-NHC ligands and yields the molecular square (see picture) that features two types of bridging rigid ditopic di-NHC ligands. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.