Photocatalytic and aerobic oxidation of saturated alkanes by a neutral luminescent trans-dioxoosmium(vi) complex [OsO2(CN)2(dpphen)]

Jack Y. K. Cheng, Kung-Kai Cheung, Chi-Ming Che*, Tai-Chu Lau

*Corresponding author for this work

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    23 Citations (Scopus)

    Abstract

    A neutral trans-dioxoosmium(vi) complex [OsO2(CN)2(dp-phen)] (dpphen = 4,7-diphenyl-1,10-phenanthroline) is prepared and characterized by X-ray crystal analysis; the excited state is long-lived, emissive and oxidizing [E°(OsVI-V) = 2.15 V vs. NHE; lifetime = 0.95 μs; quantum yield = 5 × 10-4; λem(max.) = 650 nm]; under UV-VIS irradiation and in the presence of dioxygen, cyclohexane is oxidized to cyclohexanol and cyclohexanone with a turnover number of 16; secondary C-H bonds of propane and primary C-H bonds of n-hexane are also oxidized.
    Original languageEnglish
    Pages (from-to)1443-1444
    JournalChemical Communications
    Issue number15
    DOIs
    Publication statusPublished - 1997

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