Rutherford, Todd J., and Keene, F. Richard (1998) Stereoisomers in heterometallic (Ru₂Os) and heteroleptic homometallic (RuRu'Ru") trinuclear complexes incorporating the bridging ligand hat (1,4,5,8,9,12-hexaazatriphenylene). Dalton Transactions (7). pp. 1155-1162.

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Abstract

The stereoisomers (ΔΔΔ', ΔΔΛ', ΛΛΛ', ΛΛΔ', ΔΛΔ' and ΔΛΛ'; the prime indicates the chirality of the osmium centre) of the heteronuclear trimetallic Ru₂Os species [{Ru(bpy)₂}₂{Os(bpy)₂}(µ-hat)]⁶⁺ (hat = 1,4,5,8,9,12-hexaazatriphenylene; bpy = 2,2'-bipyridine), and the diastereoisomeric forms of the heteroleptic homometallic trinuclear species [{Ru(bpy)₂}{Ru(phen)₂}{Ru(dmbpy)₂}(µ-hat)]⁶⁺ (Δ^bΔ^pΔ^m/Λ^bΛ^pΛ^m, Δ^bΔ^pΛ^m/Λ^bΛ^pΔ^m, Δ^bΛ^pΔ^m/Λ^bΔ^pΛ^m, Δ^bΛ^pΛ^m/Λ^bΔ^pΔ^m; phen = 1,10-phenanthroline, dmbpy = 4,4'-dimethyl-2,2'-bipyridine; b, p and m denote the chirality of the metal attached to the ligands bpy, phen and dmbpy, respectively) have been isolated using a combination of stereoselective syntheses and chromatographic procedures. In both cases dinuclear species with predetermined stereochemistry were used as precursors: the various stereoisomers of the target trinuclear species were characterised on the basis of the known stereochemical course of the synthetic reactions, in combination with NMR and CD spectroscopy.

Item ID:	22811
Item Type:	Article (Research - C1)
ISSN:	1477-9234
Keywords:	controlled inorganic architectures; enantiopure building-blocks; diastereoisomeric forms; ruthenium(II) complexes; coordination-compounds; polypyridyl ligands; dna; 1,4,5,8-tetraazaphenanthrene; rhodium(III); osmium(II)
Date Deposited:	10 Aug 2012 02:19
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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