Abstract
The effect on the quantum yield for the cyclization reaction and the circular dichroism (CD) spectral change by the addition of β-cyclodextrin (β-CDx) to an aqueous solution of 2,2′-dimethyl-3,3′-(perfluorocyclopentene-1,2-diyl)bis-(benzo[b]thiophene-6-ammonium)iodide (1a) were studied. The quantum yield for the cyclization reaction was increased because of the increase of the ratio of the photoactive anti-parallel conformation. The CD spectral change upon irradiation with 313 nm light was also studied. The induced CD spectrum of an aqueous mixture of 1 and β-CDx changed from negative to positive by 313 nm light irradiation and the CD spectral change was photoreversible.
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