Jing Wang, C. Ha
Mar 6, 2010
Citations
0
Influential Citations
28
Citations
Journal
Tetrahedron
Abstract
Abstract 2, 2′-Dihydroxyazobenzene (DHAB) demonstrated high sensitivity and low selectivity toward three anions: CN − , CO 3 2− , and HCO 3 − . In the presence of Cu(II), complex DHAB–Cu(II) could give rise to enhanced fluorescence intensity by about 45-fold at 590 nm and visible red-to-reddish orange color change upon the addition of cyanide by utilizing an indirect method, while no changes were observed in the presence of other anions, including F − , Cl − , Br − , I − , H 2 PO 4 − , CH 3 COO − , NO 3 − , CO 3 2− and HCO 3 − , and SO 4 2− , making the DHAB–Cu(II) complex a selective and sensitive cyanide chemosensor.