Photosubstitution quantum yields for hexacyanorhodate(III), Rh(CN)/sub 6//sup 3 -/, and hexacyanoiridate(III), Ir(CN)/sub 6//sup 3 -/
It has been shown that the photochemical properties of the M(CN)/sub 6//sup 2 -/ (M = Co(III), Rh(III), Ir(III)) complexes are parallel, each giving the pentacyanoaquo complex as the only photoproduct when photolysis is conducted in acidic aqueous media. However, of these only Co(CN)/sub 6//sup 3 -/, which displays a wave-length-independent quantum yield for photoaquation of 0.31 +/- 0.02 mol/einstein, has had its solution photosubstitution properties quantitatively characterized. Reported here are quantitative investigations of the photosubstitutions displayed by the Rh(CN)/sub 6//sup 3 -/ and Ir(CN)/sub 6//sup 3 -/ ions in acidic aqueous solution at 25/sup 0/C. Also reported are the low-temperature (77K) luminescence spectra and emission lifetimes of these species and of the photoproducts M(CN)/sub 5/H/sub 2/O/sup 2 -/. 39 references, 4 figures, 3 tables.
- Research Organization:
- Univ. of California, Santa Barbara
- OSTI ID:
- 5889741
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 24:21; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400500* -- Photochemistry
ABSORPTION SPECTROSCOPY
AQUEOUS SOLUTIONS
CHEMICAL REACTIONS
COMPLEXES
CYANIDES
DATA
DISPERSIONS
EFFICIENCY
EMISSION SPECTROSCOPY
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
INFORMATION
IRIDIUM COMPLEXES
LIFETIME
LOW TEMPERATURE
LUMINESCENCE
MEDIUM TEMPERATURE
MIXTURES
NUMERICAL DATA
PHOTOCHEMICAL REACTIONS
QUANTUM EFFICIENCY
RHODIUM COMPLEXES
SOLUTIONS
SPECTROSCOPY
TRANSITION ELEMENT COMPLEXES