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• W2002904284 abstract "The structures of HOs3(μ-H)2(CO)10(SiHPh2) (1) and Os3(μ-H)2(CO)10(SnMe3)2 ((2) have been determined by X-ray methods. Crystals of 1 are triclinic, space group P1 with a 9.221(1), b 11.927(1), c 13.580(1) Å, α 110.94(1), β 101.28(1), γ 97.39(1)°, V 1335.3(4) Å3 and Z = 2. The structure was solved by heavy-atom methods and the structure refined to R 2.2% and Rw 2.3%. It consists of an Os3 triangle, two edges of which are bridged by hydrogen ligands (OsOs lengths of 3.0369(4) and 3.0847(5) Å vs. 2.9383(6) Å for the unbridged OsOs bond). The terminal hydride and SiHPh2 groups ligate different osmium atoms on the same edge of the Os3 cluster (the OsSi bond length is 2.455(2) Å); both are in the equatorial plane. This is first case where a terminal hydride ligand has been structurally characterized in an equatorial site for an Os3 cluster. Crystals of 2 are monoclinic space group P21/n with a 9.456(2), b 22.575(4), c 13.124(4) Å, β 95.40(2)°, V 2789(2) Å3 and Z = 4. The structure was also solved by standard heavy-atom techniques and the structure refined to R 5.3% and Rw 6.5% with only the Os and Sn atoms permitted to have anisotropic thermal parameters. The structure of 2 is similar to 1 except that the SnMe3 ligands are bound on opposite edges of the Os3 triangle. The OsOs vector are 2.896(3) (unbridged), 3.021(3), 3.070(2) Å (Os(μ-H)Os); the OsSn lengths are 2.726(5) and 2.696(4) Å." @default.
• W2002904284 created "2016-06-24" @default.
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• W2002904284 date "1986-09-01" @default.
• W2002904284 modified "2023-10-12" @default.
• W2002904284 title "Group IV derivatives of Os3(μ-H)2(CO)10. Structures of HOs3(μ-H)2(CO)10(SiHPh2) and Os3(μ-H)2(CO)10(SnMe3)2" @default.
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• W2002904284 doi "https://doi.org/10.1016/0022-328x(86)80248-0" @default.
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