Sequential biphotonic processes: photochemical reactivity of phthalocyanine radicals

Journal Article · Wed Jan 28 04:00:00 EST 1987 · Inorg. Chem.; (United States)

DOI:https://doi.org/10.1021/ic00249a026· OSTI ID:6800026

Van Vlierberge, B; Ferraudi, G

Results of a study of the photochemistry of Rh(III), Al(III), and Zn(II) phthalocyanine cation radicals are reported here. The radicals were generated in a flash photolysis apparatus, which employs two flash-lamp-pump dye lasers. This excitation of the metallophthalocyanines at wavelengths of the phthalocyanine's Q band produced the long-lived triplet state. Irradiation of the phthalocyanine radicals led to rapid (t less than 1 ..mu..s) decomposition of these species followed by a partial recovery of the radical concentration. The dependence of radical yield on medium conditions was noted, and this dependence was probably attributable to an increase in the yield of the reactive excited state and/or a decrease in the rate of excited-state relaxation in changing from protic to aprotic media or replacing D/sub 2/O by H/sub 2/O. 10 references, 3 figures, 2 tables.

• OSTI ID: 6800026
• Journal Information: Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 26:2; ISSN INOCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
400500* -- Photochemistry
ALUMINIUM COMPLEXES
CHEMISTRY
COMPLEXES
DATA
DYES
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
LASER RADIATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PHOTOCHEMISTRY
PHTHALOCYANINES
RADIATIONS
RHODIUM COMPLEXES
SOLVENTS
TRANSITION ELEMENT COMPLEXES
ZINC COMPLEXES