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Ion‐Selective Crown Ether Dyes
Author(s) -
Dix J. Peter,
Vögtle Fritz
Publication year - 1978
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.197808571
Subject(s) - counterion , crown ether , chromophore , chemistry , ether , heteroatom , ion , photochemistry , crown (dentistry) , polymer chemistry , organic chemistry , materials science , ring (chemistry) , composite material
Cation‐selective color changes can be accomplished in dyes in which a heteroatom of the chromophore participates as a donor center in complex formation by a crown ether. The greatest effect (Δλ ≈ 120nm) is observed with the combination (1) , M ⊕ = Ba 2⊕ (2I − as counterion).