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Pyrene Excimer‐based Bis‐triazolyl Pyranoglycoligands as Specific Mercury Sensors
Author(s) -
He Xiaopeng,
Xie Juan,
Chen Guorong,
Chen Kaixian
Publication year - 2012
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201200978
Subject(s) - chemistry , pyrene , excimer , cycloaddition , mercury (programming language) , photochemistry , alkyne , fluorescence , selectivity , combinatorial chemistry , organic chemistry , catalysis , physics , quantum mechanics , computer science , programming language
New C3,4‐disubstituted bis‐triazolyl glycoligands that feature a glucosyl or galactosyl scaffold incorporating two pyrenyl groups were synthesized via the Cu I ‐catalyzed azide‐alkyne 1,3‐dipolar cycloaddition reaction (Cue‐AAC). These compounds exert a major emission band corresponding to that of pyrene excimer and respond specifically to mercury with a markedly quenched fluorescence. The epimeric nature of the pyranoglycosyl scaffold is determined influential toward the selectivity of the sensors.