First generation poly(propyleneimine) dendrimers functionalised with 1,8-naphthalimide units as fluorescence sensors for metal cations and protons
作者:Ivo Grabchev、Stephane Dumas、Jean-Marc Chovelon、Ana Nedelcheva
DOI:10.1016/j.tet.2007.12.040
日期:2008.2
The synthesis of two new green fluorescent poly(propyleneimine) dendrimers from first generation has been described. The new materials are comprised of a 1,8-naphthalimide fluorophore having a substituent at C-4 position. The substituent in the first case is a N,N-dimethylaminoethylamino group while in the second one it is N-methylpiperazine. The spectroscopic and photophysical characteristics of the
已描述了第一代合成的两种新型绿色荧光聚(亚丙基亚胺)树状聚合物。新材料由在C-4位置具有取代基的1,8-萘二甲酰亚胺荧光团组成。第一种情况下的取代基是N,N-二甲基氨基乙基氨基,而第二种情况下的取代基是N-甲基哌嗪。提出了在不同极性的有机溶剂中测定的新型树枝状聚合物的光谱和光物理特性。在金属阳离子(Zn 2 +,Co 2 +,Ni 2 +,Pb 2 +,Mn 2 +,Cu2+,Fe 3+和Ag +)和质子。讨论了光致电子转移对其传感特性的影响。