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Research article - Peer-reviewed, 2003

Characterization of small azocrown ether stereoisomers

Luboch E, Wagner-Wysiecka E, Kravtsov VC, Kessler V


The stable E- and Z-isomers of 10-membered azocrown ether have been isolated and studied by X-ray, (HNMR)-H-1 and UV-Vis methods. Their structures in a solid state indicate. the stretched conformation for trans-isomer and unstressed for cis-isomer. The concerted effect of azo-group pi-conjugation with benzene residue and steric strain of molecular conformation results in the observed stability of isomers

Published in

Polish Journal of Chemistry
2003, Volume: 77, number: 2, pages: 189-196