TY - JOUR
T1 - A highly selective turn-on fluorescent chemosensor for copper(II) ion
AU - Wu, Shu-Pao
AU - Wang, Tzu Hao
AU - Liu, Shi Rong
PY - 2010/12/18
Y1 - 2010/12/18
N2 - A new pyrene derivative (1) containing a diaminomaleonitrile moiety exhibits high selectivity for Cu2+ detection. Significant fluorescence enhancement was observed with chemosensor 1 in the presence of Cu2+. However, the metal ions Ag+, Ca2+, Cd2+, Co2+, Fe2+, Fe3+, Hg 2+, Mg2+, Mn2+, Ni2+, Pb 2+, and Zn2+ produced only minor changes in fluorescence values for the system. The apparent association constant (Ka) of Cu2+ binding in chemosensor 1 was found to be 5.55×10 3 M-1. The maximum fluorescence enhancement caused by Cu2+ binding in chemosensor 1 was observed over the pH range 5-7.5.
AB - A new pyrene derivative (1) containing a diaminomaleonitrile moiety exhibits high selectivity for Cu2+ detection. Significant fluorescence enhancement was observed with chemosensor 1 in the presence of Cu2+. However, the metal ions Ag+, Ca2+, Cd2+, Co2+, Fe2+, Fe3+, Hg 2+, Mg2+, Mn2+, Ni2+, Pb 2+, and Zn2+ produced only minor changes in fluorescence values for the system. The apparent association constant (Ka) of Cu2+ binding in chemosensor 1 was found to be 5.55×10 3 M-1. The maximum fluorescence enhancement caused by Cu2+ binding in chemosensor 1 was observed over the pH range 5-7.5.
KW - Cu(II)
KW - Diaminomaleonitrile
KW - Fluorescent chemosensor
KW - Pyrene
UR - http://www.scopus.com/inward/record.url?scp=78650180904&partnerID=8YFLogxK
U2 - 10.1016/j.tet.2010.10.054
DO - 10.1016/j.tet.2010.10.054
M3 - Article
AN - SCOPUS:78650180904
VL - 66
SP - 9655
EP - 9658
JO - Tetrahedron
JF - Tetrahedron
SN - 0040-4020
IS - 51
ER -