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標題: Reactions of sulfido-tricobalt cluster (mu(3)-S)CO)(7)(mu-C,N-C5H4N) with diphosphine ligands and (mu(3)-S)Co-3(CO)(7)(mu-S,P-SPMe2) towards diphenyl-2-pyridylphosphine
作者: Hong, F.E.
Chang, C.P.
Chang, H.
Huang, Y.L.
Chang, Y.C.
關鍵字: carbonylation;sulfido-tricobalt cluster;DPPM;DPPE;diphenyl-2-pyridylphosphine;organometallic chalcogen complexes;molecular-structure;binuclear;complexes;sulfur complexes;2-(diphenylphosphino)pyridine;cobalt;chemistry;sulphide;system
Project: Journal of Organometallic Chemistry
期刊/報告no:: Journal of Organometallic Chemistry, Volume 677, Issue 1-2, Page(s) 80-88.
Reaction of sulfido-tricobalt cluster, (mu(3)-S)Co-3(CO)(7)(mu-S,P-SPMe2) (8), with PPh2PY in THF at 90 degreesC for 6 h gave two compounds, (mu(3)-S)Co-3(CO)(5)(mu-S,P-SPMe2)(mu-P,N-PPh2PY) (9) and (mu(3)-S)Co-3(CO)(4)(mu-S,P-SPMe2)(mu-P,N-PPh2PY)(PPh2PY) (10). Both compounds, 9 and 10, were well characterized by spectroscopic means as well as X-ray crystal structure determination. The hybrid bidentate PPh2PY ligand bridges two cobalt centers in 9 (or 10) through both phosphorus and nitrogen atoms. Besides the bridging PPh2PY ligand, one more additional coordinating PPh2PY ligand attached through phosphorous was observed at 10. Treatment of another sulfido-tricobalt cluster (mu(3)-S)Co-3(CO)(7)(mu-C,N-C5H4N) (2a) with bis(diphenylphosphino)methane (DPPM) in THF at 25 degreesC for 2 h gave two DPPM bridged complexes (mu(3)-S)Co-3(CO)(5)(mu-C,N-C5H4N)(mu-P,P'-DPPM)] (11) and (mu(3)-S)Co-3(CO)(5)[(mu-C(=O),N-C5H4N(C=O))(mu-P,P'-DPPM)] (12) where as bis(diphenylphosphino)ethane (DPPE) gave two DPPE bridged isomeric complexes (mu(3)-S)Co-3(CO)(5)[(mu-C(=O),N-C5H4N(C=O))(mu-P,P'-DPPE)] (13a and 13b). The X-ray structural analyses of 12 and 13b revealed that carbonylation occurred at the Co-C(pyridyl) bond. (C) 2003 Elsevier Science B.V. All rights reserved.
ISSN: 0022-328X
DOI: 10.1016/s0022-328x(03)00374-7
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