Photochemical reactions of nitrite complexes of platinum(IV)
Journal Article
·
· Sov. J. Coordinat. Chem.; (United States)
OSTI ID:6509470
The photochemical reactions of complex nitrites of platinum(IV) with the general formula K/sub 2/ (Pt(NO/sub 2/)/sub 6-x/X/sub x/, where X = Cl/sup -/, Br/sup -/, and x = 0 to 3, have been studied. It has been shown that the absorption spectra of all the nitrite complexes display two intense bands at lambda = 330 and 280 nm. Photoexcitation of the complex nitrites of Pt(IV) in aqueous solutions (T = 293/sup 0/K) at wavelengths from 254 to 404 nm results in the occurrence of a single photoreduction reaction to the corresponding platinum(II) nitrates, regardless of the composition of the complex ion. The quantum yields of the photoreduction reaction have been measured. It has been established that photolysis at low temperature (T = 77/sup 0/K) and in rigid matrices (glycerol-water and polyvinyl alcohol films) results in the formation of nitrito isomers of the platinum(IV) complex. It has been shown that two intraligand charge-transfer states are the states responsible for the photochemical reactions.
- Research Organization:
- A.I. Gertsen Leningrad State Pedagogic Institute, USSR
- OSTI ID:
- 6509470
- Journal Information:
- Sov. J. Coordinat. Chem.; (United States), Journal Name: Sov. J. Coordinat. Chem.; (United States) Vol. 11:8; ISSN SJCCD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400500 -- Photochemistry
ABSORPTION SPECTRA
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
BROMIDES
BROMINE COMPOUNDS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
DISPERSIONS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
HALIDES
HALOGEN COMPOUNDS
INFRARED SPECTRA
ISOMERS
KINETICS
MIXTURES
NITRITES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PH VALUE
PHOTOCHEMICAL REACTIONS
PHOTOSENSITIVITY
PLATINUM BROMIDES
PLATINUM CHLORIDES
PLATINUM COMPLEXES
PLATINUM COMPOUNDS
POTASSIUM COMPOUNDS
RAMAN SPECTRA
REACTION KINETICS
SENSITIVITY
SOLUTIONS
SPECTRA
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
YIELDS
400201* -- Chemical & Physicochemical Properties
400500 -- Photochemistry
ABSORPTION SPECTRA
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
BROMIDES
BROMINE COMPOUNDS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
DISPERSIONS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
HALIDES
HALOGEN COMPOUNDS
INFRARED SPECTRA
ISOMERS
KINETICS
MIXTURES
NITRITES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PH VALUE
PHOTOCHEMICAL REACTIONS
PHOTOSENSITIVITY
PLATINUM BROMIDES
PLATINUM CHLORIDES
PLATINUM COMPLEXES
PLATINUM COMPOUNDS
POTASSIUM COMPOUNDS
RAMAN SPECTRA
REACTION KINETICS
SENSITIVITY
SOLUTIONS
SPECTRA
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
YIELDS