TY - JOUR
T1 - New fluorescent chemosensors for silver ion
AU - Kang, Jongmin
AU - Choi, Miwhoa
AU - Kwon, Ji Young
AU - Lee, Eun Yeol
AU - Yoon, Juyoung
PY - 2002/6/14
Y1 - 2002/6/14
N2 - New fluorescent chemosensors, 1,8-bis(pyrazolyl-methyl)anthracene and 9,10-bis(pyrazolylmethyl)anthracene, were synthesized. The 1,8-isomer showed selective fluorescent quenching effects with Ag(I) and Cu(II). On the other hand, the 9,10-isomer displayed a selective fluorescent quenching effect only with Ag(I). From the association constants obtained from fluorescent titrations and by extraction, we conclude that rigid immobilization of the ligands, 1,8-isomer, plays a more important role in the binding with Ag(I) than the additional -cation interaction offered by the 9,10-isomer.
AB - New fluorescent chemosensors, 1,8-bis(pyrazolyl-methyl)anthracene and 9,10-bis(pyrazolylmethyl)anthracene, were synthesized. The 1,8-isomer showed selective fluorescent quenching effects with Ag(I) and Cu(II). On the other hand, the 9,10-isomer displayed a selective fluorescent quenching effect only with Ag(I). From the association constants obtained from fluorescent titrations and by extraction, we conclude that rigid immobilization of the ligands, 1,8-isomer, plays a more important role in the binding with Ag(I) than the additional -cation interaction offered by the 9,10-isomer.
UR - http://www.scopus.com/inward/record.url?scp=0037077078&partnerID=8YFLogxK
U2 - 10.1021/jo020123x
DO - 10.1021/jo020123x
M3 - Article
C2 - 12054981
AN - SCOPUS:0037077078
SN - 0022-3263
VL - 67
SP - 4384
EP - 4386
JO - Journal of Organic Chemistry
JF - Journal of Organic Chemistry
IS - 12
ER -