π-Complexes of the Group V metals with diphenylacetylene. Crystal structure of π-cyclopentadienyl-π-tetraphenylcyclobutadiene-π-diphenylacetyleneniobium carbonyl

Abstract

A. N. Nesmeyanov, A. I. Gusev, A. A. Pasynskii, K. N. Anisimov, N. E. Kolobova and Yu. T. Struchkov, J. Chem. Soc. D, 1969, 739b DOI: 10.1039/C2969000739B