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- W1987407645 abstract "Reaction of [Os3(μ-H)2(CO)10] with 1,4-dipyridylbuta-1,3-diyne yields two clusters, [Os3(μ-H)(CO)10{μ-η1:η1-(C8H5N)–C–(C5H4N)}] 1 and [Os3(μ-H)(CO)10-{μ3-η1:η1:η1-(C5H4N)–C–C(C8H6N)}] 2, in which the diyne has rearranged to form a substituted indolizine ring system. Complex 1 converts slowly to 2 at room temperature, and may be decarbonylated to yield [Os3(μ-H)(CO)9{μ-η1:η2:η1-(C8H5N)–C–(C5H4N)}] 3. An analogous reaction involving [Os3(CO)10(MeCN)2] generates three products, [Os3(μ-H)(CO)10{μ-η1:η1-(NC5H3)–C2C2–(C5H5N)}] 4 and [{Os3(μ-H)(CO)10}2{μ-η1:η1-(NC5H3)–C2–}2] 5, both coordinated via orthometallated pyridyl rings, and a minor product [{Os3(CO)10}2{μ3-η1:η1:η1-C2-(NC5H4)}2] 6, coordinated via μ-carbene and σ-N interactions, the linking ligand retaining its central CC bond. Complex 4 reacts with [Os3(μ-H)2(CO)10] to form the linked cluster [{Os3(μ-H)(CO)10}2{μ-η1:η1,μ-η1:η1-(C8H5N)–C–(C5H3N)}] 7, also forming an indolizine ring system. The structures of 1–3, 6, 6·2[CH2Cl2] and 7 have been established by X-ray crystallography." @default.
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- W1987407645 date "2005-01-01" @default.
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- W1987407645 title "Molecular rearrangements of diynes coordinated to triosmium carbonyl clusters: reactions of [Os<sub>3</sub>(μ-H)<sub>2</sub>(CO)<sub>10</sub>] and [Os<sub>3</sub>(CO)<sub>10</sub>(MeCN)<sub>2</sub>] with 1,4-dipyridylbuta-1,3-diyne" @default.
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- W1987407645 doi "https://doi.org/10.1039/b412578a" @default.
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