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- W2021000701 abstract "The photochemistry of a series of Os(η6-arene) complexes has been investigated in argon, methane and dinitrogen matrices with IR and UV/vis detection. The coordinatively unsaturated complex, Os(η6-C6H3Me3)(CO), may be formed by photolysis of either Os(η6-C6H3Me3)(CO)(H)2 or Os(η6-C6H3Me3)(CO)(H) in argon matrices. Irradiation of Os(η6-C6H3Me3)(CO)(H)2 in nitrogen matrices yields Os(η6-C6H3Me3)(CO)(N2). Activation of methane CH bonds occurs on photolysis of either Os(η6-C6H3Me3)(CO)(H)2 or Os(η6-C6H3Me3)(CO)2 in methane matrices. The formation of Os(η6-C6H3Me3)(CO)(CH3)(rmH) is established by comparison of a complete IR spectrum with that of an authentic sample in the matrix. These studies provide extremely strong evidence that insertion into alkane CH bonds is preceded by the information of the 16-electron intermediate Os(η6-C6H3Me3)(CO). Vinyl hydride complexes Os(η6-C6H3Me3)(L)(C2H3)(H)(rmL= CO, C2H4) and Os(η6-C6H6)(CO)(C2H3)H are formed on photolysis of the ethene complexes, Os(η6-C6H3Me3(L)(C2H4) and Os(η6-C6H6)(CO)(C2H4). The vinyl hydride products are established by comparison of the spectra from C2H4 and C2D4 complexes, and observation of OsH(D) and vinly vibrations, as well as charactersitic v(CO) modes. The photoproducts of Os(η6-C6H3Me3)(CO)(CH2=CHMe) are probably cis and trans isomers of the propenyl hydride Os(η6-C6H3Me3)(CO)(CH=CHMe)H." @default.
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- W2021000701 date "1995-11-01" @default.
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- W2021000701 title "Photochemistry of Os(η6-arene) complexes in low-temperature matrices: an infrared spectroscopic study of CH bond activation" @default.
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- W2021000701 doi "https://doi.org/10.1016/0022-328x(95)05609-s" @default.
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