The chlorophyll a aggregate absorbing near 685 nm is selectively formed in aqueous tetrahydrofuran
In: Photochemistry and photobiology, Jg. 58 (1993), Heft 1, S. 127-132
academicJournal
- print, 27 ref
Zugriff:
An aqueous solution of 2-12% (vol/vol) tetrahydrofuran (THF) induced the selective aggregation of chlorophyll a (Chl a) to form a novel species, A-685, absorbing near 685 nm. The formation of A-685 was closely correlated with a decrease in water activity of the solution. A Raman spectrum of the Chl a species formed in the presence of 6% THF suggests a unique interaction among Chl a, solvent THF and water molecules to give a stacked aggregate (Chl a.THF.H2O.THF.Chl a). The circular dichroic spectrum of the Chl a species formed in the 6% THF aqueous solution showed an intense signal that had negative and positive wings with about 100-fold larger molar ellipticity for the A-685 than for monomer.
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The chlorophyll a aggregate absorbing near 685 nm is selectively formed in aqueous tetrahydrofuran
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Autor/in / Beteiligte Person: | UEHARA, K ; HIOKI, Y ; MIMURO, M |
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Zeitschrift: | Photochemistry and photobiology, Jg. 58 (1993), Heft 1, S. 127-132 |
Veröffentlichung: | Malden, MA: Blackwell Publishing, 1993 |
Medientyp: | academicJournal |
Umfang: | print, 27 ref |
ISSN: | 0031-8655 (print) |
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