A colorimetric and fluorescent cyanide chemosensor based on dicyanovinyl derivatives: Utilization of the mechanism of intramolecular charge transfer blocking

作者：Li, Qiao; Cai, Yi; Yao, Hong; Lin, Qi; Zhu, Yuan-Rong; Li, Hui; Zhang, You-Ming; Wei, Tai-Bao^*

来源：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2015, 136(PB): 1047-1051.

DOI：10.1016/j.saa.2014.09.128

• Cyanide (CN-)
• Green synthesize
• Colorimetric
• Fluorometric
• ICT blocking
• Highly selectivity

Chemosensor (CS1) was designed and synthesized by simple green chemistry procedure. CS1 exhibited both colorimetric and fluorescence turn-off responses for cyanide (CN-) ion in aqueous solution. The probe showed an immediate visible color changes from yellow to colorless and green fluorescence disappearance when CN- was added. The mechanism of chemosensor reaction with CN- was studied using (HH)-H-1 NMR and C-13 NMR spectroscopies and mass spectrometry. Moreover, test strips based on the sensor were fabricated, which served as convenient and efficient CN- test kits.

• 出版日期2015-2-5
• 单位西北师范大学