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- W2046972936 abstract "Reaction of cis-Ru(tpy)(CO)2Cl+PF6- (1; tpy = 2,2‘:6‘,2‘‘-terpyridyl) with aqueous Na2CO3 in acetonitrile yields the CO2-bridged complex cis,cis-(CH3CN)(CO)(tpy)Ru(CO2)Ru(tpy)(CO)22+2PF6- (3). Reaction of 1 with aqueous NaOCHO yields the corresponding η1-formato complex 4; reaction of 4 with aqueous Na2CO3 also provides 3. Reaction of 3 with CO results in displacement of acetonitrile and formation of 5, cis,cis-(CO)2(tpy)Ru(CO2)Ru(tpy)(CO)22+2PF6-. Reaction paths leading to 3 and 4 from 1 are thought to occur by base-assisted trans labilization of chloride resulting from conversion of a π-acceptor ligand (CO) to a σ-donor (COOH). Support for proposed steps in the reaction paths leading to 3 and 4 was provided by a trapping experiment in which 1 reacts with cis-Ru(bpy)2(CO)COOH+PF6- in the presence of aqueous Na2CO3 to give cis,cis-(CO)(bpy)2Ru(CO2)Ru(tpy)(CO)22+2PF6- (7; bpy = 2,2‘-bipyridyl), which has been structurally characterized. Parallels between these reactions and the halide labilizations which occur with ruthenium or rhenium polypyridyl complexes during photochemical or electrochemical reductions of CO2 are discussed." @default.
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- W2046972936 date "1997-09-01" @default.
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- W2046972936 title "Chloride Labilization Resulting from Nucleophilic Addition to <i>cis</i>-Ru(tpy)(CO)<sub>2</sub>Cl<sup>+</sup>PF<sub>6</sub><sup>-</sup>: Synthesis and Characterization of New CO<sub>2</sub>-Bridged and Formate Complexes of Ruthenium" @default.
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- W2046972936 doi "https://doi.org/10.1021/om970493p" @default.
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