Multiple bonds between transition metals and ‘bare’ main group elements. A reactive manganese–tellurium–manganese framework: synthesis structure, and alkylidene addition
- 1 January 1984
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 11,p. 686-687
- https://doi.org/10.1039/c39840000686
Abstract
A bent manganese–tellurium–manganese framework exhibiting multiple bond character has been constructed by treatment of the solvent-stabilized organomanganese complex (η5-C5Me5)Mn(CO)2thf (1; thf = tetrahydrofuran) with aluminium telluride in the presence of aqueous hydrochloric acid; the dinuclear product (µ-Te)[(η5-C5Me5)Mn(CO)2]2(2) isolated in 46% yield has been shown by X-ray crystallography to contain a central ‘bare’ tellurium bridging atom which is attached to two independent (η-C5Me5)Mn(CO)2 moieties via very short Te–Mn bonds [245.9(2)pm]; this compound reacts readily with diazoalkanes to give µ-alkylidene complexes of composition (µ, η2-TeCR2)[(η5C5Me5)Mn(CO)2]2[(3a) R = H, (3b) R = Me].Keywords
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