Luminescent tetrametallic complexes of ruthenium

Journal Article · Wed Jan 11 00:00:00 EST 1989 · Inorganic Chemistry; (USA)

DOI:https://doi.org/10.1021/ic00300a018· OSTI ID:7003437

Murphy, Jr, W R; Brewer, K J; Gettliffe, G; Petersen, J D ^[1]

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1. Clemson Univ., SC (USA)

Tetrametallic complexes constructed around the metal core Ru(dpp){sub 3}{sup 2+} (where dpp = 2,3-bis(2-pyridyl)pyrazine) have been prepared and characterized. The complexes, which have the general formula Ru((dpp)ML{sub 2}){sub 3}{sup n+}, where ML{sub 2} = Ru{sup II}(bpy){sub 2} (n = 8), Ru{sup II}(phen){sub 2} (n = 8), and Ru{sup II}(tpy)Cl (n = 5) and bpy = 2,2{prime}-bipyridine, phen = 1,10-phenanthroline, and tpy = 2,2{prime}:6{prime},2{double prime}-terpyridine, are prepared from the reaction of Ru(dpp){sub 3}{sup 2+} with ML{sub 2}Cl{sub 2} in ethanol/water. The tetrametallic complexes luminesce at room temperature in acetonitrile with emissions characteristic of a single ruthenium center with excited-state lifetimes in the 100-ns range. Electrochemically, the most facile reductions occur at the dpp ligand, and the lower energy oxidation is a single peak associated with the three peripheral ruthenium centers. 13 refs., 1 fig., 2 tabs.

• DOE Contract Number: FG09-87ER13768
• OSTI ID: 7003437
• Journal Information: Inorganic Chemistry; (USA), Vol. 26:1; ISSN 0020-1669
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BIPYRIDINES
CHEMICAL PREPARATION
CHLORINE COMPOUNDS
PHENANTHROLINES
PYRAZINES
RUTHENIUM COMPLEXES
AQUEOUS SOLUTIONS
ETHANOL
EXPERIMENTAL DATA
LUMINESCENCE
ALCOHOLS
AROMATICS
AZAARENES
AZINES
COMPLEXES
DATA
DISPERSIONS
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
SOLUTIONS
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties