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Amidino Pentadienylium Salts − A New Cyanine Dye Type
Author(s) -
Fialon MariePierre,
Chernega Alexander,
Romanenko Vadim,
Mazières MarieRose,
Wolf JeanGérard
Publication year - 1998
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/(sici)1099-0690(199802)1998:2<329::aid-ejoc329>3.0.co;2-z
Subject(s) - cyanine , chemistry , alkoxy group , reactivity (psychology) , spectrophotometry , combinatorial chemistry , polymer chemistry , photochemistry , stereochemistry , organic chemistry , fluorescence , alkyl , chromatography , medicine , physics , alternative medicine , pathology , quantum mechanics
The reactivity of carboxonium salts permits substitution of one or both of the reactive terminal ethoxy groups by amidino moieties. In this way, new cyanine dyes with extended conjugation paths are obtained. These have been studied by UV/vis spectrophotometry. Furthermore, the X‐ray structure of 1b has been determined and compared with that predicted by molecular mechanical calculations.