Photochemical Production of Ethane from an Iridium Methyl Complex

An iridium methyl complex, [Cp*Ir­(bpy)­(CH3)]+, was prepared by electrophilic methylation of Cp*Ir­(bpy) with CH3I and characterized electrochemically, photophysically, crystallographically, and computationally. Irradiation of the MLCT transition of [Cp*Ir­(bpy)­(CH3)]+ in the presence of CH3I in a...

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Bibliographic Details
Published in:Organometallics 2017-05, Vol.36 (10), p.1906-1914
Main Authors: Pitman, Catherine L, Miller, Alexander J. M
Format: Article
Language:English
Subjects:
Chemistry
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Summary:An iridium methyl complex, [Cp*Ir­(bpy)­(CH3)]+, was prepared by electrophilic methylation of Cp*Ir­(bpy) with CH3I and characterized electrochemically, photophysically, crystallographically, and computationally. Irradiation of the MLCT transition of [Cp*Ir­(bpy)­(CH3)]+ in the presence of CH3I in acetonitrile produces ethane, methane, propionitrile, and succinonitrile. A series of mechanistic studies indicates that C–C bond formation is mediated by free methyl radicals produced through monometallic photochemical homolysis of the Ir–CH3 bond.
ISSN:0276-7333
1520-6041
DOI:10.1021/acs.organomet.7b00175