Several rhodamine-B (C.I. Basic Violet 10) hydrazide derivatives were employed as specific fluorescent and colorimetric chemosensors for Cu2+ in neutral buffered media. The probes exhibited selective “off-on” type changes in both absorption and emission spectra toward Cu2+ ions compared to other metal cations, which was attributed to transformation of the non-fluorescent and colorless spirolactam derivative
几种
罗丹明B(CI Basic Violet 10)酰
肼衍
生物被用作中性缓冲液中Cu 2+的特定荧光和比色
化学传感器。与其他
金属阳离子相比,这些探针对Cu 2+离子的吸收光谱和发射光谱均表现出选择性的“关闭”型变化,这归因于无荧光无色螺内酰胺衍
生物向开环的荧光,粉红色的酰胺。对结构-活性关系的进一步研究表明,这些
化学传感器共享的指定酰基骨架部分(衍生自
染料酰
肼和
水杨
醛类似物)决定了Cu 2+相对于其他阳离子的选择性。