In:
Canadian Journal of Chemistry, Canadian Science Publishing, Vol. 73, No. 7 ( 1995-07-01), p. 1003-1009
Abstract:
The vinyl-bridged cationic complex, [(µ-CHCH 2 )Os 2 (CO) 8 ][BF 4 ] (3), is obtained readily and in excellent yield either via hydride abstraction from octacarbonyl diosmacyclobutane, (µ-η 1 ,η 1 -CH 2 CH 2 )Os 2 (CO) 8 (1), or via protonation of octacarbonyl diosmacyclobutene, (µ-η 1 ,η 1 -CHCH)Os 2 (CO) 8 (2). It is argued that the 1 H and 13 C NMR data of complex 3 are consistent with the traditional view of bonding in µ-alkenyl complexes, involving substantial σ,π donation. The solid state X-ray structure of the complex lends support for this formulation. Complex 3 crystallizes in the orthorhombic space group, P2 1 2 1 2 1 , with a = 12.128(2) Å, b = 14.151(3) Å, c = 9.248(3) Å, V = 1587 Å 3 , and Z = 4. The final R and R w values are 0.032 and 0.038, respectively. Keywords: µ-vinyl, diosmacycles, X-ray structure.
Type of Medium:
Online Resource
ISSN:
0008-4042
,
1480-3291
Language:
English
Publisher:
Canadian Science Publishing
Publication Date:
1995
detail.hit.zdb_id:
1482256-8
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