Huang Junhai, Xu Yufang, Qian Xuhong
Shang Hai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China.
Dalton Trans. 2009 Mar 14(10):1761-6. doi: 10.1039/b816999c. Epub 2009 Jan 27.
A Cu2+-specific colorimetric sensor of a 1,8-naphthalimide chromophore integrated with a 2-aminodiphenylamine (2-adpa)-based receptor was designed and synthesized. Sensor had high selectivity and sensitivity for Cu2+ in neutral aqueous buffer solution. The analytical detection limit (ADL) was 3.0 x 10(-7) M. Based on the Cu2+-induced deprotonation of the diarylamino "NH" moiety, the coordination mode was proposed with 1:1 stoichiometry between and Cu2+. These results opened up possibilities for the construction of novel colorimetric sensors with a red-shift absorption in a D-pi-A system.
设计并合成了一种将1,8-萘二甲酰亚胺发色团与基于2-氨基二苯胺（2-adpa）的受体相结合的Cu2+特异性比色传感器。该传感器在中性水性缓冲溶液中对Cu2+具有高选择性和灵敏度。分析检测限（ADL）为3.0×10（-7）M。基于Cu2+诱导的二芳基氨基“NH”部分的去质子化，提出了与Cu2+之间化学计量比为1:1的配位模式。这些结果为构建在D-π-A体系中具有红移吸收的新型比色传感器开辟了可能性。
