Direct measurement of singlet oxygen produced by four chlorin-ringed chlorophyll species in acetone solution
Abstract
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We developed an optical system to detect singlet oxygen produced by chlorin-ringed chlorophyll (Chl) species, i.e., Chl a, Chl b, Chl d, and di-vinyl-Chl a, with a high sensitivity and examined the relationship between molecular structures and reaction rates. Chl a in acetone was the lowest producer of singlet oxygen and the most effective quencher; in contrast, Chl b exhibited the opposite properties. These results showed that replacement of side chain(s) from a methyl group to a formyl group on the R7 position on a chlorin ring induced a higher production and lower quenching of singlet oxygen in Chl molecules.
Journal
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- Chem Phys Letts
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Chem Phys Letts 485 202-206, 2010-01-18
Elsevier B.V.
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Keywords
Details 詳細情報について
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- CRID
- 1050282676653048064
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- NII Article ID
- 120005305416
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- ISSN
- 00092614
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- HANDLE
- 10271/2434
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- CiNii Articles