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Journal articles
Cis- and trans-Bis(1-phenyl-2,3,4,5-tetramethylphosphole)tetracarbonylmolybdenum(0), [Mo(CO)4(tmpPh)2]. Syntheses and structures
Abstract : 1-Phenyl-2,3,4,5-tetramethylphosphole reacts with [Mo(CO)6] to give the mono- and bis(phosphole) complexes [Mo(CO)5L] and cis- and trans-[Mo(CO)4L2], where L=C4Me4PPh (tmpPh). The new complexes have been characterised by spectroscopic methods, supplemented by single-crystal X-ray analyses in the case of the bis(phosphole) isomers. The isomeric bis-tmpPh complexes show little evidence of the overcrowding which is thought to lengthen bonds and distort the metal coordination in the corresponding bis-PPh3 and bis-PCy3 isomers. The structural basis for the greater stability of the trans isomers is briefly considered: the cis→trans isomerisation typically involves little change in the mean Mo-CO distance, whereas there is a marked shortening of the Mo-P bonds. © 2001 Elsevier Science B.V.
https://hal.univ-brest.fr/hal-01770130
Contributor : Nicolas Renard <>
Submitted on : Wednesday, April 18, 2018 - 4:15:40 PM
Last modification on : Thursday, October 3, 2019 - 8:50:02 AM
Contributor : Nicolas Renard <>
Submitted on : Wednesday, April 18, 2018 - 4:15:40 PM
Last modification on : Thursday, October 3, 2019 - 8:50:02 AM
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