Science Links Japan | Absolute Quantum Yields and Lifetimes of Photosensitized Phosphorescence of Singlet Oxygen O2 (1.DELTA.g) in Air-Saturated Aqueous and Organic Solutions of Phenalenone.

Absolute Quantum Yields and Lifetimes of Photosensitized Phosphorescence of Singlet Oxygen O2 (1.DELTA.g) in Air-Saturated Aqueous and Organic Solutions of Phenalenone.

Accession number;99A0156450

Title;Absolute Quantum Yields and Lifetimes of Photosensitized Phosphorescence of Singlet Oxygen O2 (1.DELTA.g) in Air-Saturated Aqueous and Organic Solutions of Phenalenone.

Author; SHIMIZU O (Nagoya City Univ., Nagoya) WATANABE J (Nagoya City Univ., Nagoya) IMAKUBO K (Nagoya Univ., Nagoya) NAITO S (Gifu Shoutokugakuen Univ., Gifu)

Journal Title;Chem Lett

Journal Code:S0742A

ISSN:0366-7022

VOL.;NO.1;PAGE.67-68(1999)

Figure&Table&Reference;FIG.1, TBL.1, REF.14

Pub. Country;Japan

Language;English

Abstract;The absolute quantum yield .PHI.p of singlet oxygen (1O2) phosphorescence sensitized by phenalenone (PH) was determined together with the lifetime .TAU. in 19 different solvents, using the known .PHI.p=(1.38.+-.0.05)*10-3 in CCI4 as a standard. Measurements of both .PHI.p and .TAU. were performed by combined use of a pulsed laser and a photon-counter coupled with a near-IR-sensitive photomultiplier. The .PHI.p value in water was determined to be .PHI.p=(4.5.+-.0.2)*10-8. (author abst.)

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