engleski

A New Preparation of Mo_2(CO)_8(mu-PPh_2)_2 and W_2(CO)_8(mu-PPh_2)_2 by a Phosphorus-carbon Bond Cleavage Reaction. Crystal Structure of a New Polymorph of Mo_2(CO)_8(mu-PPh_2)_2

A new synthesis of Mo_2(CO)_8(mu-PPh_2)_2 and W_2(CO)_8(mu-PPh_2)_2 by the reaction of molybdenum and tungsten hexacarbonyls with a tetraazamacrocyclic ligand containing -CH_2PPh_2 side chains, comprising cleavage of the phosphorus-methylene bond has been performed. The complexes have been investigated by magnetic and spectroscopic measurements and by single-crystal structure analyses. The structural characterization of a new polymorph of Mo_2(CO)_8(mu-PPh_2)_2 has been described.

Molybdenum; tungsten; phoshorus-carbon bond cleavage; diphenylphosphido complexes; carbonyl complexes; crystal structure

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