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9‐Benzylidene‐9 H ‐fluorene Derivatives Linked to Monoaza‐15‐crown‐5: Synthesis and Metal Ion Sensing
Author(s) -
Cao Jing,
Li Yang,
Feng Junxiang
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.201200047
Subject(s) - chemistry , fluorene , fluorophore , metal ions in aqueous solution , metal , ion , selectivity , alkaline earth metal , photochemistry , inorganic chemistry , fluorescence , organic chemistry , polymer , catalysis , physics , quantum mechanics
Two kinds of novel styryl chemosensory 2‐FMNC and 3‐FMNC, were designed and synthesized by an apporiate introduction of 9‐benzylidene‐9 H ‐fluorene group as fluorophore with the aim at avoiding photoisomerisation. These 9‐benzylidene‐9 H ‐fluorene derivatives showed the similar selectivity and sensitivity upon addition of metal ions. The sensitivity of FMNC to alkaline earth metal ions was Ba 2+ >Sr 2+ >Ca 2+ ≈Mg 2+ .