Abstract
E-4-(2-(4- tert - butylphenyl) ethen-1- yl)benzoate, E-1−, photoisomerizes to the Z-1− isomer and vice versa in the free state and in the binary complexes 2·E-1−, 2·Z-1−, 3·E-1− and 3·Z-1− where 2 is the urea-linked cyclodextrin N-(6A-deoxy-α-cyclodextrin-6A- yl)-N′-(6A-deoxy-β-cyclodextrin-6A- yl)urea and 3 is N,N- bis(6A-deoxy-β-cyclodextrin-6A- yl)urea. In 2·E-1−and 3·E-1− the stilbene occupies both cyclodextrin (CD) components of 2 and 3, whereas in 2·Z-1− and 3·Z-1− it only occupies one CD component while the other CD component is unoccupied. 4- tert - Butylphenolate, 4−, and its carboxylate, 5−, and sulfonate, 6−, analogues form the ternary complex 2·Z-1−·4− and its analogues and also 3·Z-1−·4− and its analogues. These photoisomerize to 2·E-1−and 3·E-1− and either free 4−, 57− or 6− and thereby function as molecular devices.
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J.S. Lock B.L. May P. Clements S.F. Lincoln C.J. Easton (2004) ArticleTitle␣ org. biomol. chem. 2 337
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Lock, J.S., May, B.L., Clements, P. et al. Cyclodextrin Complexation of the Stilbene 4-(2-(4-Tert-butylphenyl)ethen-1-yl)- benzoate and the Self-assembly of Molecular Devices. J Incl Phenom Macrocycl Chem 50, 13–18 (2004). https://doi.org/10.1007/s10847-003-8829-5
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DOI: https://doi.org/10.1007/s10847-003-8829-5