In:
Zeitschrift für Naturforschung B, Walter de Gruyter GmbH, Vol. 38, No. 11 ( 1983-11-1), p. 1313-1324
Kurzfassung:
A new one-step synthesis for bis-carbene complexes cis-M(CO) 4 L 2 (M = Cr, Mo, W) containing cyclic carbene ligands L has been developed. These compounds can be oxidized by ferrocenium salts to paramagnetic cation complexes [M(CO) 4 L 2 ] + which, for M = Cr, are isolable in the form of their PF 6 salts. The chromium compounds with L= 1,3-dimethyl-4-imidazolin-2-ylidene permit for the first time a structural and spectroscopic comparison of a diamagnetic carbene complex with the corresponding paramagnetic cation; the experimental facts are interpreted by molecular orbital calculations.
Materialart:
Online-Ressource
ISSN:
1865-7117
,
0932-0776
DOI:
10.1515/znb-1983-1101
Sprache:
Englisch
Verlag:
Walter de Gruyter GmbH
Publikationsdatum:
1983
ZDB Id:
2078109-X
ZDB Id:
124635-5
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