The ubiquitous nature of anions has gained a bourgeoning interest among the supramolecular chemists to develop artificial receptors for the selective recognition and sensing of bioactive anions. Many excellent linear, dipodal, tripodal and multipodal anion receptors have been reported in the last two decades to recognize and detect anions of diverse geometry selectively. This review was narrated with the aim to summarize the C_3v-symmetric tripodal receptors reported for the chromogenic and fluorogenic sensing of anions using various flexible and rigid tripodal frameworks. Sensing mechanisms like ICT, PET, excimer-monomer formation, push-pull, rigidity effect etc., and the design concepts applied for the development of tripodal anion sensors have been discussed.

阴离子的无处不在性质已引起超分子化学家的兴旺发展兴趣，以开发用于选择性识别和感测生物活性阴离子的人工受体。在过去的二十年中，已经报道了许多出色的线性，二脚，三脚和多足阴离子受体，可以选择性地识别和检测不同几何形状的阴离子。这篇综述的目的是总结使用各种柔性和刚性三脚架框架报道的C _3v对称三脚架受体，用于阴离子的发色和荧光检测。讨论了诸如ICT，PET，准分子单体形成，推挽，刚度效应等传感机制，以及应用于三脚架阴离子传感器开发的设计概念。