Pentacarbonylchromium(0) and -tungsten(0) complexes with the bis(diisopropylamino) cyclopropenylidene (cas 16165-40-5) ligand

Add time:07/27/2019    Source:sciencedirect.com

Bis(diisopropylamino)cyclopropenylidene (cas 16165-40-5) (1a) generated by deprotonation of the cyclopropenylium salt (5) with n-butyllithium reacts with [(thf)M(CO)5] (M  Cr, W) to form the carbene complexes [(1a)Cr(CO)5] (6a) and [(1a)W(CO)5] (6b). The X-ray crystal structure of 6b is reported. Spectral and structural data of 6a and 6b are compared to other [(carbene)M(CO)5] complexes, confirming 1a to be strong donor ligand.

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