Abstract
A series of metalmetal bonded complexes [M(CO) 3(η-C 5R 5 M′(CO) 2(η-C 7H 7)] ( 1: M M′ Mo, R H; 2: M M′ Mo, R Me; 3 M M′ W, R H; 4: M W, M′ Mo, R H) have been synthesized from the dicarbonylacetonitrile cations [M′(CO) 2(NCMe)(η-C 7H 7)][BF 4] (M′ Mo or W) and the appropriate anion Li[M(CO) 3(η-C 5H 5)] (M Mo or W, R H or Me). Infrared, electronic absorption, and NMR spectra of complexes 1 to 4 are discussed; variable temperature 13C NMR studies on 2 advocate an intermetallic carbonyl scrambling process.
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