1306607-00-0Relevant articles and documents
Anion binding and sensing properties of bis(3-indolyl)methene derivatives based on proton transfer process
Wang, Litao,He, Xiaoming,Guo, Yong,Xua, Jian,Shao, Shijun
, p. 60 - 65 (2012/04/18)
A series of the bis(3-indolyl)methene derivatives were synthesized and their anion binding and sensing properties in CH3CN or mixed CH 3CN/H2O solution have been investigated in detail by UV-vis spectroscopic techniques. The deprotonation/protonation of the bis(3-indolyl)methene receptor is responsible for the dramatic color and spectral changes. The introduction of the electron-donating or withdrawing group into different moiety of the bis(3- indolyl)methene skeleton, which tunes the acidity of the H-bond donor moiety or the basicity of the H-bond acceptor moiety, has a positive effect on the selectivity and sensitivity of such "proton-transfer" chemosensors for anions.