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- W2492038133 abstract "A series of trinuclear osmium carbonyl derivatives that contain single unsupported equatorial μ2-hydride ligands, including (μ2-H)(H)Os3(CO)11, (μ2-H)(H)Os3(CO)10(PPh3), Os3(CO)9(EtC≡CH)2, and (μ2-H)2Os3Re2(CO)20, have been investigated. The OS(μ-H)OS distances range from 2.989(1) to 3.083(3) Å, as opposed to a normal Os-Os bond length of 2.877(3) Å in Os3(CO)l2. In (μ2-H)2Os3(CO)10, the dihydrido-bridged Os-Os bond is 2.681(1) Å in length while in (μ2-H)Os3(CO)10(μ2-CH·CH2·PMe2Ph), the dibridged Os-Os bond distance is 2.800(1) Å. Similar effects are noted for ruthenium complexes based upon studies on Ru3(CO)12, (μ2-H)Ru3(CO)10(μ2-C=NMe2), and (μ2-H)4Ru4(CO)10(diphos). In the dinuclear species [(η5-C5Me5)MCl]2(μ-X)(μ-Cl) (M = Rh, Ir; X = Cl, H), the μ2-hydrido-μ2-chloro-bridged complexes have M-M separations of 2.906(1) Å (M = Rh) and 2.903(1) Å (M = Ir) whereas the di-μ2-chloro-bridged species have increased nonbonding M···M distances of 3.719(1) Å (M = Rh) and 3.769(1) Å (M = Ir)." @default.
- W2492038133 created "2016-08-23" @default.
- W2492038133 creator A5048358000 @default.
- W2492038133 date "1978-06-01" @default.
- W2492038133 modified "2023-09-27" @default.
- W2492038133 title "Molecules with Bridging Hydride Ligands" @default.
- W2492038133 doi "https://doi.org/10.1021/ba-1978-0167.ch004" @default.
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