Stoichiometric and catalytic oxygen activation by trimesityliridium (III)

…, DS Laitar, L Pu, MF Wargocki, AG DiPasquale…

文献索引：Jacobi, Bridey Grant; Laitar, David S.; Pu, Lihung; Wargocki, Michael F.; DiPasquale, Antonio G.; Fortner, Kevin C.; Schuck, Stephany M.; Brown, Seth N. Inorganic Chemistry, 2002 , vol. 41, # 18 p. 4815 - 4823

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被引用次数: 39

摘要

Trimesityliridium (III),(mes) 3Ir, activates O2 to form oxotrimesityliridium (V),(mes) 3Ir O, in a reaction that is second order in iridium and first order in molecular oxygen. This dioxygen activation can be combined with atom transfer from (mes) 3Ir O to PPh3 (k ox= 3.95 M-1 s-1) to allow efficient catalytic air oxidation of triphenylphosphine at room temperature. Catalysis is inhibited by formation of (mes) 3Ir (PPh3), which has an asymmetric sawhorse shape ...