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Formation and Characterization of the Iridium Tetroxide Molecule with Iridium in the Oxidation State +VIII
Author(s) -
Gong Yu,
Zhou Mingfei,
Kaupp Martin,
Riedel Sebastian
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200902733
Subject(s) - iridium , chemistry , photochemistry , molecule , oxidation state , inorganic chemistry , catalysis , organic chemistry
A state of eight : Iridium atoms insert into dioxygen to form iridium dioxide molecules in solid noble‐gas matrices. Annealing allows formation of the iridium dioxide superoxide complex [(η 1 ‐O 2 )IrO 2 ], which isomerizes under IR irradiation to the iridium dioxide peroxide complex [(η 2 ‐O 2 )IrO 2 ]. These complexes photochemically rearrange to the more stable iridium tetroxide molecule with an iridium oxidation state of +VIII (see scheme; Ir black, O red).
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