ISSN:
0009-2940
Keywords:
Clusters with Mo, Co, As
;
Metalla spiropentanes
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Arsenic-Cobalt-Molybdenum Clusters by photolytic and Thermal Reaction of μ3-AsCp3Mo3(CO)6 with CpCo(CO)2Cophotolysis of μ3-AsCp3Mo3(CO)6 (1) and CpCo(CO)2 (2) (Cp = cyclopentadienyl) yields the cluster μ4-AsCp4Co3Mo(CO)5 (3), the metal core of which is isostructural to spiropentane, and the trigonal-pyramidal cluster μ3-AsCp3Co2Mo(CO)3 (4), whereas thermal reaction leads to trigonal-bipyramidal μ3-AsCp4Co3Mo(CO)2 (6a). Thermal reaction of μ3-AsCp′3Mo3(CO)6 (Cp′ = methylcyclopentadienyl) with 2 yields μ3-AsCp3Cp′Co3Mo(CO)2 (6b), which is analogous to 6a. Clusters 3, 4, and 6b were characterized by means of X-ray structure analyses.
Notes:
Cophotolyse von μ3-AsCp3Mo3(CO)6 (1) und CpCo(CO)2 (2) (Cp = Cyclopentadienyl ergibt den Cluster μ4-AsCp4Co3Mo(CO)5 (3), dessen Metallgerüst isostrukturell zu Spiropentan ist, und den trigonal-pyramidalen Cluster μ3-AsCp3Co2Mo(CO)3 (4), während die thermische Umsetzung zu einem höher aggregierten, CO-ärmeren Produkt führt, dem trigonal-bipyramidalen μ3-AsCp4Co3Mo(CO)2 (6a). Die thermische Reaktion von μ3-As-Cp′3Mo3(CO)6 (Cp′ = Methylcyclopentadienyl) mit 2 ergibt die zu 6a analoge Verbindung μ3-AsCp3Cp′Co3Mo(CO)2 (6b). Von 3, 4 und 6b wurden Röntgenstrukturanalysen durchgeführt.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19891220105
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