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

Journal Article · Mon Dec 31 23:00:00 EST 1990 · Organometallics; (United States)

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

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

---

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), Journal Name: Organometallics; (United States) Vol. 10:1; ISSN 0276-7333; ISSN ORGND
• Country of Publication: United States
• Language: English

Related Subjects

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