Manganese carbonyl complexes of 2,5-dimethylbismolyl. The crystal and molecular structure of (η1-2,5-dimethylbismolyl) manganese pentacarbonyl

摘要

([eta]-1-2,5-Dimethylbismolyl)manganese pentacarbonyl (8) has been obtained from the reaction of 1-phenyl-2,5-dimethylbismole with lithium followed by BrMn(CO)5. Heating 8 to its melting point causes the loss of CO to produce ([eta]5-2,5-dimethylbismolyl)manganese tricarbonyl. Compound 8 crystallizes in the monoclinic crystal system, space group P 21 (No. 4) with a = 6.838(2) A, b = 6.424(1) A, c = 15.787(4) A, [beta] = 95.68(2)[deg] V= 6901.(2) A3 and Z = 2. A full structure has been determined and is compared with those of analogous compounds.