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Spontaneous Colorimetric Sensing of the Positional Isomers of Dihydroxynaphthalene in a 1D Organogel Matrix
Author(s) -
Mukhopadhyay Pritam,
Iwashita Yuya,
Shirakawa Michihiro,
Kawano Shinichiro,
Fujita Norifumi,
Shinkai Seiji
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200503158
Subject(s) - stacking , van der waals force , chemistry , non covalent interactions , structural isomer , matrix (chemical analysis) , stereochemistry , molecule , organic chemistry , hydrogen bond , chromatography
Like a color palette : A naphthalenediimide‐based organogel colorimetric sensor allows recognition of the positional isomers of dihydroxynaphthalene in the gel phase with the naked eye. Intercalation of the dihydroxynaphthalene into the gel matrix produces a donor–acceptor interaction, which gives the gel a distinct color that depends on the strength of noncovalent (H‐bonding, π‐stacking, van der Waals) interactions.