Photochemical properties of rhodium(III) phthalocyanine cation radicals
Journal Article
·
· J. Phys. Chem.; (United States)
Stable rhodium(III) phthalocyanine cation radicals, Rh(pc) (CH/sub 3/OH)X/sup +/ with X = Cl or Br, were generated by one-electron chemical or electrochemical oxidations of the corresponding rhodium(III) phthalocyanines, Rh(pc) (CH/sub 3/OH)X, and characterized by means of their EPR and optical spectra. Some transitions in the optical spectra of the radicals were assigned by comparison with similar transitions in the spectra of the parent phthalocyanines. Moreover, the photochemical properties of the radicals were investigated by continuous, laser, and flash photolysis. Irradiations in the UV bands, lambda/sub excit/ = 250 or 320 nm, induce the photoreduction of the radicals (back to the parent phthalocyanine) by abstraction of hydrogen. Photolysis in the visible region, lambda/sub excit/ = 525 nm, induces the photodecomposition of the macrocycle. The mechanisms of these photoprocesses are discussed by comparison with known photochemical transformations of related compounds. 28 references, 3 figures, 1 table.
- Research Organization:
- Univ. of Notre Dame, IN
- OSTI ID:
- 5585052
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 88:22; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photochemistry of transition-metal phthalocyanines. Mechanistic aspects of the photochemistry of the acido(phthalocyanine)rhodium(III) complexes investigated by continuous, flash, and laser flash photolysis
Photochemistry of transition-metal phthalocyanines. Analysis of the photochemical and photophysical properties of the acido(phthalocyaninato)rhodium(III) complexes
Photochemistry of transition-metal phthalocyanines. Analysis of the photochemical and photophysical properties of the acido(phthalocyaninato)rhodium(III) complexes
Journal Article
·
Sun Aug 01 00:00:00 EDT 1982
· Inorg. Chem.; (United States)
·
OSTI ID:6876537
Photochemistry of transition-metal phthalocyanines. Analysis of the photochemical and photophysical properties of the acido(phthalocyaninato)rhodium(III) complexes
Journal Article
·
Fri Dec 31 23:00:00 EST 1982
· Inorg. Chem.; (United States)
·
OSTI ID:6102649
Photochemistry of transition-metal phthalocyanines. Analysis of the photochemical and photophysical properties of the acido(phthalocyaninato)rhodium(III) complexes
Journal Article
·
Thu Mar 31 23:00:00 EST 1983
· Inorg. Chem.; (United States)
·
OSTI ID:5318914
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
CATIONS
CHARGED PARTICLES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
DYES
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ELEMENTS
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HYDROGEN TRANSFER
INFORMATION
IONS
MAGNETIC RESONANCE
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
PHOTOLYSIS
PHTHALOCYANINES
PLATINUM METALS
RADIATIONS
RADICALS
RESONANCE
RHODIUM
TRANSITION ELEMENTS
ULTRAVIOLET RADIATION
YIELDS
400500* -- Photochemistry
CATIONS
CHARGED PARTICLES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
DYES
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ELEMENTS
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HYDROGEN TRANSFER
INFORMATION
IONS
MAGNETIC RESONANCE
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
PHOTOLYSIS
PHTHALOCYANINES
PLATINUM METALS
RADIATIONS
RADICALS
RESONANCE
RHODIUM
TRANSITION ELEMENTS
ULTRAVIOLET RADIATION
YIELDS