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Preparation and Characterization of Trimethylsilylpyridylacetylene Bridged, Dicobalt Carbonyl Complexes Containing Bis(diphenylphosphino)methylene or Bis(diphenylphosphino)ethylene Ligand
Author(s) -
Hong FungE,
Chang YuChang,
Chen ChengWei,
Huang YiLuen
Publication year - 2003
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200300137
Subject(s) - chemistry , ethylene , methylene , alkyne , ligand (biochemistry) , medicinal chemistry , crystal structure , stereochemistry , polymer chemistry , catalysis , crystallography , organic chemistry , biochemistry , receptor
Reaction of an alkyne‐bridged dicobalt complex, [Co 2 (CO) 6 (μ‐Me 3 SiC=Cpy)] 4 , with bis(diphenylphosphino)methylene (DPPM) or bis(diphenylphosphino)ethylene (DPPE) in THF at 55 °C yielded a DPPM or DPPE doubly bridged dicobalt compound, [{μ‐P,P‐PPh 2 CH 2 PPh 2 }Co 2 (CO) 4 (μ‐Me 3 SiC=Cpy)] 5 or [{μ‐P,P‐PPh 2 CH 2 CH 2 PPh 2 }Co 2 (CO) 4 (μ‐Me 3 SiC≡Cpy)] 6 . Compound 5 and 6 were characterized by spectroscopic means as well as X‐ray crystal structure determination.