Isolation of geometric isomers within diastereoisomers of dinuclear ligand-bridged complexes of ruthenium(II)

Patterson, Bradley T., and Keene, F. Richard (1998) Isolation of geometric isomers within diastereoisomers of dinuclear ligand-bridged complexes of ruthenium(II). Inorganic Chemistry, 37 (4). pp. 645-650.

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Abstract

The individual diastereoisomeric forms [meso (ΔΛ) and rac (ΔΔ and ΛΛ)] of the ligand-bridged dinuclear species [{Ru(phen)(Me₄bpy)}₂(μ-bpm)]⁴⁺ [phen = 1,10-phenanthroline; Me₄bpy = 4,4',5,5'-tetramethyl-2,2'-bipyridine; bpm = 2,2'-bipyrimidine] have been synthesized using chiral forms of the precursors [Ru(phen)(Me₄bpy)(bpm)]²⁺ and [Ru(phen)(Me₄bpy)(py)₂]²⁺. The cis and trans geometric isomers of both diastereoisomeric forms have been separated by cation exchange chromatography and characterized by NMR spectroscopy. We also report the first chiral resolutions of a heteroleptic tris(bidentate)ruthenium(II) complex, [Ru(phen)(Me₄bpy)(bpm)]²⁺, and a heteroleptic bis(bidentate)bis(pyridine)ruthenium(II) complex, [Ru(phen)(Me₄bpy)(py)₂]²⁺, in both cases using cation exchange chromatography.

Item ID: 22802
Item Type: Article (Refereed Research - C1)
Keywords: bidentate polypyridyl ligands; coordination-compounds; building-blocks; forms
ISSN: 1520-510X
Date Deposited: 10 Aug 2012 03:57
FoR Codes: 03 CHEMICAL SCIENCES > 0302 Inorganic Chemistry > 030207 Transition Metal Chemistry @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 100%
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