TY - JOUR
T1 - Dual-mode recognition of transition metal ions by bis-triazoles chained pyrenes
AU - Hung, Hao Chih
AU - Cheng, Chi Wen
AU - Ho, I. Ting
AU - Chung, Wen-Sheng
PY - 2009/1/21
Y1 - 2009/1/21
N2 - Fluorescent chemosensors 7-10, with variable methylene chain length as spacers between the two triazole methyl ether units, have been synthesized under 'Click' condition, where the bistriazoles are used as the metal ion binding sites and the pyrenes as the fluorophores. Compound 10, having the longest methylene chain among 7-10, shows monomer and excimer fluorescence quenching in acetonitrile toward Ni2+, Pb2+, Cu2+, Hg2+, and Cr3+ ions, however, it shows an enhanced monomer but a decreased excimer emission when complexed with Cd2+ and Zn2+ ions.
AB - Fluorescent chemosensors 7-10, with variable methylene chain length as spacers between the two triazole methyl ether units, have been synthesized under 'Click' condition, where the bistriazoles are used as the metal ion binding sites and the pyrenes as the fluorophores. Compound 10, having the longest methylene chain among 7-10, shows monomer and excimer fluorescence quenching in acetonitrile toward Ni2+, Pb2+, Cu2+, Hg2+, and Cr3+ ions, however, it shows an enhanced monomer but a decreased excimer emission when complexed with Cd2+ and Zn2+ ions.
UR - http://www.scopus.com/inward/record.url?scp=57149143562&partnerID=8YFLogxK
U2 - 10.1016/j.tetlet.2008.10.147
DO - 10.1016/j.tetlet.2008.10.147
M3 - Article
AN - SCOPUS:57149143562
SN - 0040-4039
VL - 50
SP - 302
EP - 305
JO - Tetrahedron Letters
JF - Tetrahedron Letters
IS - 3
ER -