ISSN:
0044-2313
Keywords:
Tetragold Cobalt Cluster
;
Synthesis
;
Crystal Structure
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Cluster Synthesis by Photolysis of R3PAuN3. V. Synthesis and Structure of [(Ph3PAu)4Co(CO)3]PF6. Bonding in Clusters [(Ph3PAu)xM(CO)y]+[(Ph3PAu)4Co(CO)3]+ (1) is formed by photolysis of Ph3PAu—Co(CO)4 and subsequent addition of Ph3PAu+ to the photolysis product. It crystallizes as 1 · PF6 in the triclinic space group P1 with a = 1646,7(6), b = 1915,3(3), c = 1288,0(7) pm, α = 91,35(3), β = 112,02(3), γ = 74,42(2)°; Z = 2. The inner skeleton of the cluster has the form of a trigonal bipyramid with the Co atom in equatorial position and distances Co—Au between 258 and 265 pm. The distances Au—Au range from 278 to 293 pm. The structure and bonding of 1 and related transition metal-gold clusters [(R3PAu)xM(CO)y]+ are discussed.
Notes:
[(Ph3PAu)4Co(CO)3]+ (1) entsteht durch Photolyse von Ph3PAu—Co(CO)4 und anschließende Zugabe von Ph3PAu+ zum Photolyseprodukt. Es kristallisiert als 1 · PF6 in der triklinen Raumgruppe P1 mit a = 1646,7(6), b = 1915,3(3), c = 1288,0(7) pm, α = 91,35(3), β = 112,02(3), γ = 74,42(2)°; Z = 2. Das innere Clustergerüst Au4Co bildet eine trigonale Bipyramide mit dem Co-Atom in äquatorialer Position und Au—Co-Abständen zwischen 258 und 265 pm, sowie Au—Au-Abständen zwischen 278 und 293 pm. Struktur und Bindungsverhältnisse von 1 und verwandten Übergangsmetall-Gold-Clustern [(R3PAu)xM(CO)y]+ werden diskutiert.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19915930105
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