A novel and generalized approach to the synthesis of ML sub 3 sup n+ (M = Ru(II), Rh(III); L = 2,2 prime -bipyridine, 1,10-phenanthroline, 2-(arylazo)pyridine; n = 2, 3)

Journal Article · Wed Apr 01 00:00:00 EST 1992 · Inorganic Chemistry; (United States)

DOI:https://doi.org/10.1021/ic00033a033· OSTI ID:7037178

Kakoti, Maushumi; Deb, A K; Goswami, S ^[1]

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1. Northeastern Hill Univ., Shillong (India)

The chemistry of tris(2,2{prime}-bipyridine)ruthenium(II) and -rhodium(III) complexes and complexes of related ligands has had an extensive literature in recent years. The reason for this is primarily the relevance of this chemistry to photophysical, photochemical, and redox phenomena. But until now, no simple and general synthetic route has been available for the synthesis of such compounds. For example, the tris complex of 2,2{prime}-bipyridine (L{sup 1}) is commonly synthesized by fusion of MCl{sub 3} with the ligand at a very high temperature, whereas the syntheses of the tris complexes of 1,10-phenanthroline (L{sup 2}) and 2-(m-tolyazo)pyridine (L{sup 3}) involve several steps which need extra purification at every stage to eliminate contaminated products. The standard reported synthetic routes are not only lengthy but also cumbersome, and in most of the cases the routes are inefficient. Therefore, there is an obvious need to develop new and direct procedures, of general application, for the synthesis of the important title compounds. In the present report, the authors describe high-yield, single-pot, and general synthetic routes to ML{sub 3}{sup n+} from either hydrated MCl{sub 3} or MCl{sub 2}L{sub 2} (M = Ru(II), Rh(III); L = L{sup 1}-L{sup 3}) and the silver bis complex of the corresponding ligand.

• OSTI ID: 7037178
• Journal Information: Inorganic Chemistry; (United States), Vol. 31:7; ISSN 0020-1669
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
RHODIUM COMPLEXES
CHEMICAL PREPARATION
RUTHENIUM COMPLEXES
AQUEOUS SOLUTIONS
BIPYRIDINES
CATIONS
CHEMICAL REACTION KINETICS
INFRARED SPECTRA
LIGANDS
PHOTOCHEMISTRY
QUALITATIVE CHEMICAL ANALYSIS
REDOX REACTIONS
SILVER
AZINES
CHARGED PARTICLES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
DISPERSIONS
ELEMENTS
HETEROCYCLIC COMPOUNDS
IONS
KINETICS
METALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
REACTION KINETICS
SOLUTIONS
SPECTRA
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS
400500* - Photochemistry