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The crystal structure of [Mo(NCS)(CO)2(η3-C3H5) (NCMe)2].MeCN and the reactions of {Mo(CO)2 (η3-C3H5)+} containing species with symmetric alkynes

Lookup NU author(s): Dr Ross Harrington


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In the solid-state about molybdenum, with carbonyls and nitriles in the equatorial plane and an N-bonded thiocyanate group trans to the allyl ligand. In refluxing methanol or acetonitrile both 1, and the analogous chloro-complex [MoCl(CO)2(η3-C3 H5)(NCMe)2](2) catalytically convert PhC≡CPh to a mixture of hexaphenylbenzene and E,E-1,2,3,4-tetraphenylbutadiene. By contrast MeO2CC≡CCO2Me is not oligomerised. In methanol, complex 2 dimerises 1,4-diphenylbutadiyne to Z,E-1,4,5,8-tetraphenyl-1,7-octa-3,5-diene-1,7-diyne, whereas in the presence of base both the complex and the diyne, react preferentially with the solvent to generate the [Mo2(CO)4 (η3-C3H5)2 (OMe)3]- anion and Z-1,4-diphenyl-3- methoxy-but-3-ene-1-yne, respectively. © 2002 Elsevier Science B.V. All rights reserved.

Publication metadata

Author(s): Goodyear JW, Hemingway CW, Harrington RW, Wisemann MR, Brisdon BJ

Publication type: Review

Publication status: Published

Journal: Journal of Organometallic Chemistry

Year: 2002

Volume: 664

Issue: 1-2

Pages: 176-181

ISSN (print): 0022-328X

ISSN (electronic): 1872-8561


DOI: 10.1016/S0022-328X(02)01981-2