- Organometallic complexes for nonlinear optics Part 21. Syntheses and quadratic hyperpolarizabilities of alkynyl complexes containing optically active 1,2-bis(methylphenylphosphino)benzene ligands
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The preparation of the chloro complex trans-[FeCl2{(R,R)-diph}2] (1) and the alkynyl complexes trans-[M(4-C≡CC6H4R)Cl{(R,R)-diph}2] [M = Fe, R = NO2 (2); M = Ru, R = H (4), NO2 (
- McDonagh, Andrew M.,Cifuentes, Marie P.,Humphrey, Mark G.,Houbrechts, Stephan,Maes, Joachim,Persoons, André,Samoc, Marek,Luther-Davies, Barry
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- Metal complexes containing diastereoisomers and enantiomers of o-phenylenebis(methylphenylarsine) and its phosphorus analogue. 3. Preparation and stereochemistry of octahedral bis(bidentate)dichlororuthenium(II) complexes
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A detailed investigation of the stereochemistry of cis- and trans-[RuCl2(bidentate)2] containing the diastereoisomers and enantiomers of o-phenylenebis(methylphenylarsine) and its phosphorus analogue has been undertaken. The trans complexes were prepared in high yield from the ligands and a prereduced form of commercial ruthenium(III) chloride in the presence of aqueous formaldehyde. The optically active, racemic, meso, syn, and anti forms of the trans-dichloro complexes were isolated for both ligands, and each of these was subsequently isomerized to the corresponding cis compound by reaction with triethylaluminum. The various diastereoisomeric cis-dichloro compounds were also separated and characterized. Whereas the trans-dichloro isomers were relatively inert, the cis complexes readily underwent stereospecific halogen substitution by iodide ions and carbon monoxide.
- Grocott, Stephen C.,Wild, Stanley Bruce
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p. 3526 - 3534
(2008/10/08)
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