Quantum yield of singlet molecular oxygen sensitization by copper(II) tetracarboxyphthalocy anine
The quantum yield φΔ for sensitization of singlet molecular oxygen, O2(1Δg), by copper(II) tetracarboxyphthalocyanine (CuTCPc) in dimethyl sulphoxide was determined under stationary illumination, using diphenyl-isobenzofurane as chemical quencher. A constant value of φΔ = 0.16 ± 0.03 was obtained, i...
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todo:paper_10111344_v3_n4_p615_Lagorio2023-10-03T15:56:13Z Quantum yield of singlet molecular oxygen sensitization by copper(II) tetracarboxyphthalocy anine Lagorio, M.G. Dicelio, L.E. San Román, E.A. Braslavsky, S.E. Copper(II) tetracarboxyphthalocyanine quantum yield singlet molecular oxygen The quantum yield φΔ for sensitization of singlet molecular oxygen, O2(1Δg), by copper(II) tetracarboxyphthalocyanine (CuTCPc) in dimethyl sulphoxide was determined under stationary illumination, using diphenyl-isobenzofurane as chemical quencher. A constant value of φΔ = 0.16 ± 0.03 was obtained, independent of sensitizer concentration in the range 2-26 μM even though dimers and possibly oligomers are present at the highest concentrations. The monomer and the aggregates of CuTCPc physically quench O2(1Δg) with a nearly diffusional rate constant. © 1989. Fil:Lagorio, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Dicelio, L.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:San Román, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Braslavsky, S.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10111344_v3_n4_p615_Lagorio |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Copper(II) tetracarboxyphthalocyanine quantum yield singlet molecular oxygen |
| spellingShingle |
Copper(II) tetracarboxyphthalocyanine quantum yield singlet molecular oxygen Lagorio, M.G. Dicelio, L.E. San Román, E.A. Braslavsky, S.E. Quantum yield of singlet molecular oxygen sensitization by copper(II) tetracarboxyphthalocy anine |
| topic_facet |
Copper(II) tetracarboxyphthalocyanine quantum yield singlet molecular oxygen |
| description |
The quantum yield φΔ for sensitization of singlet molecular oxygen, O2(1Δg), by copper(II) tetracarboxyphthalocyanine (CuTCPc) in dimethyl sulphoxide was determined under stationary illumination, using diphenyl-isobenzofurane as chemical quencher. A constant value of φΔ = 0.16 ± 0.03 was obtained, independent of sensitizer concentration in the range 2-26 μM even though dimers and possibly oligomers are present at the highest concentrations. The monomer and the aggregates of CuTCPc physically quench O2(1Δg) with a nearly diffusional rate constant. © 1989. |
| format |
JOUR |
| author |
Lagorio, M.G. Dicelio, L.E. San Román, E.A. Braslavsky, S.E. |
| author_facet |
Lagorio, M.G. Dicelio, L.E. San Román, E.A. Braslavsky, S.E. |
| author_sort |
Lagorio, M.G. |
| title |
Quantum yield of singlet molecular oxygen sensitization by copper(II) tetracarboxyphthalocy anine |
| title_short |
Quantum yield of singlet molecular oxygen sensitization by copper(II) tetracarboxyphthalocy anine |
| title_full |
Quantum yield of singlet molecular oxygen sensitization by copper(II) tetracarboxyphthalocy anine |
| title_fullStr |
Quantum yield of singlet molecular oxygen sensitization by copper(II) tetracarboxyphthalocy anine |
| title_full_unstemmed |
Quantum yield of singlet molecular oxygen sensitization by copper(II) tetracarboxyphthalocy anine |
| title_sort |
quantum yield of singlet molecular oxygen sensitization by copper(ii) tetracarboxyphthalocy anine |
| url |
http://hdl.handle.net/20.500.12110/paper_10111344_v3_n4_p615_Lagorio |
| work_keys_str_mv |
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