Intermediates in the charge-transfer and ligand-labilization photoreactions of molybdenum(V). mu. -oxo dimers
- Univ. of Notre Dame, IN (USA)
The photochemistry of Mo(V) complexes has been investigated in a flash photolysis and pulse radiolysis study of Mo{sub 2}O{sub 4}(OH{sub 2}){sub 6}{sup 2+} and Mo{sub 2}O{sub 4}Cl{sub 6}{sup 4{minus}}. Transient spectra recorded in near uv-flash photolysis of the two compounds in aqueous solutions were found to reflect the formation of species related to the photoinduced opening of one {mu}-oxo bridge and a photoreduction of the complex to Mo{sup IV}Mo{sup V} dimers. The dual photoreactivity, ligand photooxidation, and ligand photolabilization exhibited by these Mo(V) dimers were thought to be a consequence of the different excited states that are populated by irradiation in the uv region. Charge-transfer transitions are thought to account for intense absorptions in the spectra of the Mo(V) dimers that were observed at wavelengths shorter than 250nm. 23 refs., 4 figs.
- OSTI ID:
- 7155560
- Journal Information:
- Inorganic Chemistry; (USA), Journal Name: Inorganic Chemistry; (USA) Vol. 28:24; ISSN 0020-1669; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400500* -- Photochemistry
400600 -- Radiation Chemistry
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
DECOMPOSITION
ENERGY LEVELS
EXCITED STATES
HALOGEN COMPOUNDS
IRRADIATION
MOLYBDENUM COMPLEXES
OXYGEN COMPOUNDS
PHOTOCHEMISTRY
PULSED IRRADIATION
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOLYSIS
TRANSITION ELEMENT COMPLEXES