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Synthesis and Characterization of [OsCl 2 (=C=CHR)(PPh 3 ) 2 ] and Related Complexes
Author(s) -
Wen Ting Bin,
Hung Wai Yiu,
Zhou Zhong Yuan,
Lo Man Fung,
Williams Ian D.,
Jia Guochen
Publication year - 2004
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200400003
Subject(s) - carbyne , chemistry , medicinal chemistry , x ray crystallography , stereochemistry , crystallography , diffraction , organic chemistry , catalysis , carbene , physics , optics
Treatment of [OsCl 2 (PPh 3 ) 3 ] with HC≡CR (R = Ph, p ‐tolyl, CMe 3 ) in the presence of HCl gives the corresponding trichloro(carbyne) complexes [OsCl 3 (≡CCH 2 R)(PPh 3 ) 2 ] in good yields. The vinylidene complexes [OsCl 2 (=C=CHR)(PPh 3 ) 2 ] (R = Ph, p ‐tolyl, CMe 3 ) are, in turn, prepared from the reactions of the carbyne complexes [OsCl 3 (≡CCH 2 R)(PPh 3 ) 2 ] with NEt 3 . These new vinylidene complexes are hygroscopic and react with H 2 O to give (aqua)(vinylidene) complexes [OsCl 2 (H 2 O)(=C=CHR)(PPh 3 ) 2 ]. The structures of several of these new complexes have been determined by X‐ray diffraction studies. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)