Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Robert S. Vagg"'
Autor:
Peter A. Williams, Janice R. Aldrich-Wright, Ronald F. Fenton, Peter Leverett, Frederick S. Stephens, Robert S. Vagg
Publikováno v:
Journal of Coordination Chemistry. 60:2015-2034
Several isomers are possible when N4-tetradentate ligands coordinate to form metal complexes. Here we report the synthesis and structural analysis of cis-β-{[1,6-di(2′-pyridyl)(2,5-dibenzyl-2,5-diazahexane)(1,2-benzoquinone diimine)]ruthenium(II)}
Publikováno v:
Journal of Coordination Chemistry. 60:1789-1794
Optically pure enantiomers of pipecolic acid are conveniently prepared in high yield by reacting the racemate with Λ-β-[Co(R,R-picchxn)Cl2]+ (picchxn = N,N′-di(2-picolyl)1,2-diaminocyclohexane) and crystallization of pure internal diastereoisomer
Publikováno v:
Journal of Coordination Chemistry. 50:79-88
The preparation and characterisation of salts of the complex cation cis-bis(2,2′-bipyridine)-chloro(dimethylsulfoxide-S)ruthenium(IIII), [Ru(bpy)2Cl(dmso)]+, is reported. The complex was prepared by the reaction of 2,2′-bipyridine with RuCl3 · 3
Autor:
Adel M. S. Garas, Robert S. Vagg
Publikováno v:
Journal of Heterocyclic Chemistry. 37:151-158
The synthesis is described of a set of new N-heterocyclic compounds which are derivatives of 1,10-phenanthroline. The compounds are designed to be general purpose chelating agents which could function as tri-, tetra- or hexadentate ligands with trans
Publikováno v:
Journal of Coordination Chemistry. 49:91-100
The ternary complex Δ-α-[N,N'-dimethyl-l,6-di(2-pyridyl)-2,5-diazahexane][S-phenylalani-nato(l-)]cobalt(III) perchlorate has been isolated from aqueous solution as the least soluble diastereoisomer. Crystals are orthorhombic, space group P212121 wi
Publikováno v:
Journal of Biomolecular Structure and Dynamics. 17:519-525
Two novel substitutionally-inert diastereomeric ruthenium(II) cations of the form Lambda- and Delta-cis-beta-[Ru(RR-picchxn)(phen)](2+), where RR-picchxn is N,N'-dimethyl-N,N'-di(2-picolyl)-IR,2R-diaminocyclohexane and phen is 1,10-phenanthroline, ha
Publikováno v:
Journal of Coordination Chemistry. 49:101-112
The structure of Δ-α1,2-[Co(R-picpnMe2)(S-phe)](ClO4)2-H2O where R-picpnMe2 is N',N'-dimethyl-3R-methyl-l,6-di(2-pyridyl)-2,5-diazahexane and 5-phe is the S-phenylalaninate anion has been determined to be orthorhombic, space group P212121 , with a
Publikováno v:
Journal of Coordination Chemistry. 49:83-90
The complex salt Δ-α-[Co(R,R-picchxnMe2)(S-phe)](ClO4)2 H2O, where R,R-picchxnMe2 = N,N'-dimethyl-N,N'-di(2-picolyl)-1R,2R-diaminocyclohexane and S-phe is the monovalent anion of S-phenylalanine, has been prepared and its structure determined by si
Publikováno v:
Metal-Based Drugs
A study of the interaction with calf thymus DNA is described of a novel set of chiral ternary complex cations of general form [Ru(N4-tet)(phdi)]2+ (where N4-tet is the chiral linear tetradentate R*R*-picchxn or R*R*-picchxnMe2). Individual equilibriu
Publikováno v:
Coordination Chemistry Reviews. 166:361-389
Molecular design features which determine the enantio- and stereoselective behaviour of metal complexes derived from chiral linear N4-tctradentate ligands with terminal α-pyridyl groups arc described. Examples are provided of the ability of these co