Photoreactions of Ir/sub 8/(CO)/sub 22//sup 2/minus//. Homolytic cleavage of an unsupported metal-metal bond linking two tetrahedral iridium carbonyl clusters

Journal Article · Wed Feb 24 00:00:00 EST 1988 · Inorg. Chem.; (United States)

DOI:https://doi.org/10.1021/ic00277a003· OSTI ID:5761451

Vandenberg, D M; Friedman, A E; Ford, P C

The photolysis of an anion, Ir/sub 8/(CO)/sub 22//sup 2/minus//, where the metal-metal bond links two polyhedral metal clusters is discussed herein. The photolytic reaction apparently leads to homolytic bond cleavage to yield the reactive anion Ir/sub 4/(CO)/sub 11//sup /minus//. The photolysis of a complex incorporating the named anion was studied in dichloromethane under N/sub 2/ and in tetrahydrofuran under CO. The relative reactivity of the intermediate, Ir/sub 4/(CO)/sub 11//sup /minus// is illustrated by its ability to extract a chlorine atom from dichloromethane. The results of the photolysis study indicated that the tetrairidium radical may be sufficiently reactive to abstract a hydrogen atom from tetrahydrofuran. 13 references, 1 figure.

• Research Organization: Univ. of California, Santa Barbara (USA)
• DOE Contract Number: FG03-85ER13317
• OSTI ID: 5761451
• Journal Information: Inorg. Chem.; (United States), Vol. 27:4, Issue 4
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANIONS
PHOTOLYSIS
CARBONYLS
IRIDIUM COMPLEXES
METHYLENE CHLORIDE
TETRAHYDROFURAN
CHARGED PARTICLES
CHEMICAL REACTIONS
COMPLEXES
DECOMPOSITION
FURANS
HETEROCYCLIC COMPOUNDS
IONS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
TRANSITION ELEMENT COMPLEXES
400500* - Photochemistry