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Synthesis and Study of A Molecular Fluorescent Chemosensor For Potassium
Author(s) -
Xia WenSheng,
Schmehl Russell H.,
Li ChaoJun
Publication year - 2000
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(200002)2000:3<387::aid-ejoc387>3.0.co;2-7
Subject(s) - chemistry , fluorescence , acetonitrile , luminescence , potassium , photochemistry , ion , sodium , inorganic chemistry , organic chemistry , optics , physics
A potassium selective fluorescent chemosensor, 2 , was designed and synthesized. The molecular sensor is weakly luminescent in acetonitrile solution, but exhibits a significant increase in intensity upon addition of K + . The luminescence intensity increases reach a plateau when the K + / 2 ratio is 3:2. The sensor shows a linear fluorescent enhancement with the concentration of potassium ion in the presence of a large excess of sodium ion.