Insertion of CS2 into a metal acetylide bond and conversion of the bonding mode of S2CC≡CPh from η2 to η3

Mathur, Pradeep ; Ghosha, Abhijit K. ; Mukhopadhyay, Sarbani ; Srinivasu, Chimalakonda ; Mobin, Shaikh M. (2003) Insertion of CS2 into a metal acetylide bond and conversion of the bonding mode of S2CC≡CPh from η2 to η3 Journal of Organometallic Chemistry, 678 (1-2). pp. 142-147. ISSN 0022-328X

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00223...

Related URL: http://dx.doi.org/10.1016/S0022-328X(03)00466-2

Abstract

Photolysis of a benzene solution containing [(L)Mo(CO)3(C≡CPh)] (L=η5-C5H5 1; η5-C5Me5 2) and CS2 leads to the formation of dithiopropiolato containing complexes, [(L)Mo(CO)22-S2CC≡CPh)] (L=η5-C5H5 4; L=η5-C5Me5 5). In presence of air, [(η5-C5H5)Mo(CO)3(C≡CPh)] reacts with CS2 to give 4 as the major and [(η5-C5H5)Mo(O)(η3-S2CC≡CPh)] (6) as minor products. Similarly, [(η5-C5Me5)Mo(CO)3(C≡CPh)] reacts with CS2 under aerobic conditions to give compound 5 along with [(η5-C5Me5)Mo(O)(η3-S2CC≡CPh)] (7) as minor product. When solutions of 4 or 5 are photolysed under a constant purge of air, 4 gives 6, and 5 gives 7 in high yields. Room temperature stirring of 5 with [W(CO)5(THF)] forms [η5-C5Me5)Mo(CO)2CS2{W(CO)5}2C≡CPh] (9). All new compounds have been characterised by IR and 1H-NMR spectroscopy and the structures of 4, 6, 7 and 9 have been established crystallographically.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Acetylides; Mixed-metal; Chalcogen; Crystal Structure
ID Code:24887
Deposited On:01 Dec 2010 12:32
Last Modified:01 Dec 2010 12:32

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