Specific features of reversible E--Z-photoisomerization of crown-containing 4-styrylpyridine complexes with various cations
Language
en
Article de revue
This item was published in
Russian Chemical Bulletin. 2008-11-18, vol. 57, n° 11, p. 2385-2393
Springer Verlag
English Abstract
The reversible photochemical E--Z-isomerization of crown-containing 4-styrylpyridine was studied. The reaction was carried out in the presence of alkaline-earth metals capable of forming complexes with the crown-ether ...Read more >
The reversible photochemical E--Z-isomerization of crown-containing 4-styrylpyridine was studied. The reaction was carried out in the presence of alkaline-earth metals capable of forming complexes with the crown-ether fragment and heavy metal perchlorates (Hg2+, Cd2+) that are able to coordinate the nitrogen atom of the heterocyclic residue. The influence of complex formation on the E--Z-photoisomerization was determined by electronic spectroscopy and 1H NMR spectroscopy. The studies performed confirm that the E--Z-photoisomerization can be controlled using supramolecular complex formation.Read less <
English Keywords
mercury perchlorate
15-crown-5 ethe
crown-containing styrylpyridine
E--Z-photoisomerization
complex formation
alkaline-earth metal perchlorates
cadmium perchlorate
mercury perchlorate.
Origin
Hal imported