Sequential biphotonic processes in rhodium(III) phthalocyanines
Journal Article
·
· J. Phys. Chem.; (United States)
Visible irradiations, lambda/sub excit/ = 640 or 590 nm, of rhodium(III) phthalocyanines with high photonic fluxes induce the same abstraction of hydrogen from solvent molecules that was previously reported for monophotonic ultraviolet photolysis. The dependence of the product yields on light intensity and complex concentration reveals that the visible photochemistry is associated with biphotonic processes. Indeed, no visible photochemistry was detected for low photonic fluxes. The direct observation of the low-lying /sup 3/..pi pi..* shows that the biphotonic photochemistry carries the excited molecules to the reactive n..pi..* state. A mechanism for the sequential biphotonic photochemistry of the phthalocyanines is discussed. 33 references, 4 figures, 2 tables.
- Research Organization:
- Univ. of Notre Dame, IN
- OSTI ID:
- 7243814
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 87:24; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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Thu Aug 30 00:00:00 EDT 1984
· J. Phys. Chem.; (United States)
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OSTI ID:6120811
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· Inorg. Chem.; (United States)
·
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· J. Phys. Chem.; (United States)
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OSTI ID:5585052
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HETEROCYCLIC COMPOUNDS
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ORGANIC COMPOUNDS
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080106 -- Hydrogen-- Production-- Biosynthesis & Photochemical Processes
14 SOLAR ENERGY
140505* -- Solar Energy Conversion-- Photochemical
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400500 -- Photochemistry
CHEMICAL REACTIONS
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DATA
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EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HYDROGEN PRODUCTION
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
PHTHALOCYANINES
RHODIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES