Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/94581
Title: Porous graphitic carbon (PGC) high-performance liquid chromatography of diphosphine-bridged complexes with heteronuclear Au-M (M = Mn, Re) bonds
Authors: Li, C.-H.
Low, P.M.N.
Li, S. 
Lee, H.K. 
Hor, T.S.A. 
Keywords: Column liquid chromatography
Diphosphine complexes
Gold, rhenium, manganese organometallics
Porous graphitic carbon
Issue Date: 1997
Citation: Li, C.-H.,Low, P.M.N.,Li, S.,Lee, H.K.,Hor, T.S.A. (1997). Porous graphitic carbon (PGC) high-performance liquid chromatography of diphosphine-bridged complexes with heteronuclear Au-M (M = Mn, Re) bonds. Chromatographia 44 (7-8) : 381-385. ScholarBank@NUS Repository.
Abstract: The isocratic high-performance liquid chromatography of 1,1'-bis(diphenylphosphino)ferrocene (dppf), 1,1'-bis(diphenylphosphino)ruthenocene (dppr), bis(diphenylphosphino)methane (dppm) and triphenylphosphine (PPh3)-substituted heterometallic Au-Mn or Au-Re carbonyl complexes is reported. A column packed with PGC (porous graphitic carbon) was used after preliminary experiments had shown that silica- and bonded-phase (silica-based) stationary phases were unsatisfactory for separation. The PGC column exhibited unique selectivity for the complexes studied. The mobile phases used were water-acetonitrile, dichloromethane-hexane and tetrahydrofuran-hexane. The retention behaviour of the compounds was governed by the polar character and size of molecules, and influenced by metal-metal bond polarity, Separation of isomorphous structures with different metallocenyl moieties was achieved.
Source Title: Chromatographia
URI: http://scholarbank.nus.edu.sg/handle/10635/94581
ISSN: 00095893
Appears in Collections:Staff Publications

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