The chemistry of (ring)Ru sup 2+ (ring = tetramethylthiophene, p-cymene)

Journal Article · Tue Jan 01 00:00:00 EST 1991 · Organometallics; (United States)

DOI:https://doi.org/10.1021/om00047a060· OSTI ID:6106735

Ganja, E A; Rauchfuss, T B; Stern, C L ^[1]

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1. Univ. of Illinois, Urbana (United States)

Described are the compounds ((ring)Ru(OTf){sub 2}){sub x}, where ring = 2,3,4,5-tetramethylthiophene (TMT, 1), and p-cymene (2). These electrophilic reagents serve as precursors to ((ring)RuL{sub 3}){sup 2+}, where L{sub 3} = (H{sub 2}O){sub 3}, (NH{sub 3}){sub 3}, and (PH{sub 3}){sub 3}. Solutions of 1 and 2 react with carbon monoxide to give (ring)Ru(CO)(OTf){sub 2}. The addition of thiophenes to CH{sub 2}Cl{sub 2} solutions of 1 or 2 leads to the precipitation of the sandwich compounds ((ring)(SC{sub 4}R{sub 4})Ru)(OTf){sub 2}, where SC{sub 4}R{sub 4} = thiophene, 2,5-dimethylthiophene, and TMT. ((TMT)Ru(H{sub 2}O){sub 3})(OTf){sub 2} was characterized by single-crystal X-ray crystallography, which established a piano-stool geometry with a planar TMT ligand. ((TMT)Ru(D{sub 2}O){sub 3})(OTf){sub 2} decomposes in D{sub 2}O solution at 150C to give ((TMT){sub 2}Ru){sup 2+}, which undergoes selective deuteration at the 2,5-methyl groups. D{sub 2}O solutions of ((TMT){sub 2}Ru){sup 2+} undergo photochemical loss of one TMT ligand in water to give ((TMT)Ru(H{sub 2}O){sub 3}){sup 2+}. A procedure is described for the reversible loading of 1 onto {gamma}-alumina, which in turn was characterized by {sup 13}C CP-MAS NMR spectroscopy.

• OSTI ID: 6106735
• Journal Information: Organometallics; (United States), Vol. 10:1; ISSN 0276-7333
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
POLYCYCLIC SULFUR HETEROCYCLES
DESULFURIZATION
RUTHENIUM COMPLEXES
CHEMICAL REACTION KINETICS
AMMONIA
AQUEOUS SOLUTIONS
BOND LENGTHS
CARBON MONOXIDE
CHEMICAL SHIFT
CHEMISTRY
CYMENE
HEAVY WATER
LIGANDS
METHYLENE CHLORIDE
MOLECULAR STRUCTURE
NMR SPECTRA
PHOSPHINES
PHOTOLYSIS
WATER
X-RAY DIFFRACTION
AROMATICS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COHERENT SCATTERING
COMPLEXES
DECOMPOSITION
DIFFRACTION
DIMENSIONS
DISPERSIONS
HETEROCYCLIC COMPOUNDS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
KINETICS
LENGTH
MIXTURES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
PHOTOCHEMICAL REACTIONS
REACTION KINETICS
SCATTERING
SOLUTIONS
SPECTRA
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties