Herein, a novel ferrocene–rhodamine receptor conjugated with an allylimine bridge was facilely synthesized. This triple channel receptor can selectively and sensitively monitor Pd²⁺ ions through chromogenic, fluorogenic and electrochemical assays in aqueous medium with a low detection limit (8.46 × 10⁻⁹ M) and a fast response (<8 min). It can be applied as a fluorescent probe for effective survey of Pd²⁺ ions in living cells. Moreover, a plausible recognition mode was proposed and rationalized by theoretical calculations.

中文翻译：

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在水介质和活细胞中使用二茂铁-若丹明共轭三通道受体 对Pd ²⁺离子进行高灵敏度和选择性检测†

本文中，轻松合成了一种新的二茂铁-罗丹明受体与烯丙胺桥结合。该三通道受体可以通过发色，荧光和电化学分析在水性介质中选择性和灵敏地监测Pd ²⁺离子，其检测限低（8.46×10 ^-9 M），响应速度快（<8分钟）。它可以用作荧光探针，以有效地检测活细胞中的Pd ²⁺离子。此外，提出了一种合理的识别模式，并通过理论计算使其合理化。