3,5-Dichlorosalicylaldehyde-ο-rhodamine B Hydrazone: Synthesis and Highly Selective Recognition for Cu2+

作者：Feng Yong-Lan^*; Fang Jing-Xian; Liu Chao; Wu Xu-Meng; Xu Meng; Jiang Wu-Jiu; Yu Jiang-Xi; Tan Yu-Xing; Kuang Dai-Zhi

来源：Chinese Journal of Inorganic Chemistry, 2016, 32(1): 56-62.

• 3,5-dichlorosalicylaldehyde-omicron-rhodamine B hydrazone
• crystal structure
• copper ion
• recognition

A novel colorimetric probe, 3,5-dichlorosalicylaldehyde-omicron-rhodamine B hydrazone (L), for Cu2+ was designed, synthesized. Its structure was characterized with IR, H-1 NMR, C-13 NMR, elemental analysis and X-ray crystal diffraction. The binding property of the probe with Cu2+ was examined by UV-Vis spectroscopy. The result showed in acetonitrile/methenamine (pH 5.6) buffer system, when Cu2+ was added to the solution of 3,5-dichlorosalicylaldehyde-omicron-rhodamine B hydrazone, a dramatic color change from colorless to rose red was observed, while the other metal ions did not cause noticeable changes, which indicates that 3,5-dichlorosalicylaldehyde-omicron-rhodamine B hydrazone had a high sensitivity single selectivity colorimetric recognition for Cu2+. The detection limit for Cu2+ was 9.30x10(-8) mol.L-1 by UV-Vis spectroscopy.

• 出版日期2016-1-10
• 单位衡阳师范学院; 湘南学院