Highly selective fluorescence detection of Cu2+ in water by chiral dimeric Zn2+ complexes through direct displacement.
Fluorescent dinuclear chiral zinc complexes were synthesized in a "one-pot" method in which the lysine-based Schiff base ligand was generated in situ. This complex acts as a highly sensitive and selective fluorescent ON-OFF probe for Cu(2+) in water at physiological pH. Other metal ions such as Hg(2+), Cd(2+), and Pb(2+) gave little fluorescence change.
Khatua
Snehadrinarayan
S
Molecular Logic Gate Laboratory, Department of Chemistry, Korean Advanced Institute of Science and Technology (KAIST), 373-1 Guseong-dong, Yuseong-gu, Daejeon, 305-701, Republic of Korea.
Choi
Shin Hei
SH
Lee
Junseong
J
Huh
Jung Oh
JO
Do
Youngkyu
Y
Churchill
David G
DG
D003300:Copper / Q000032:analysis*; D019281:Dimerization; D005453:Fluorescence; D006863:Hydrogen-Ion Concentration; D009942:Organometallic Compounds / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism; D014867:Water / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
D009942:Organometallic Compounds; D014867:Water; D003300:Copper; D015032:Zinc