有机光致变色材料是在特定波长的光照射下，生成同分异构体，同时在另一波长光照射或加热的条件下，该异构体可发生逆反应并伴随着明显的光物理化学性能变化的有机材料。将超分子化学的分子识别和光致变色相结合，可以实现客体操控材料的光致变色性能。基于其特殊的光切换性质，人们已开发出多种多响应、多功能材料并将其广泛应用于分子开关、分子逻辑门、分子机器、化学传感、生物成像等诸多领域。其中，具有离子识别能力的光致变色化合物因其易操作和廉价而成为最理想的该类材料之一。该类化合物不仅光致变色性质可以被离子所调节，同时也可以作为特异检测离子的新型光控探针。着重介绍近几年具有离子识别能力的光致变色材料的研究进展。最后结合现阶段的研究情况，对其前景和应用进行了展望。
Photochromic materials are a family of compounds that can undergo reversible photo-switches be-tween two different isomers or states under alternative irradiation with different light wavelengths along with distinct photophysical and photochemical properties.The surge of interest has been aroused by photo-switches based on photo-chromism combined with the concept of molecular recognition in supramolecular chemistry,and a number of multi-functional photo-switches with multi-response to guests have been developed to apply in the fields of molecular swit-ches,logic gates,molecular motors,chemosensors,bio-imaging and so on.Among them,photochromic compounds with ions recognition ability are one of the most promising candidates with excellent photochemical and photophysical properties owing to simple operation strategies with economical agents.It should mentioned that not only the photo-chromic properties of these compounds are modulated by ions,but also they can work as new photochromic probes for detecting ions with high selectivity and sensitivity,indicating the multi-response and multi-function of compounds and their potential applications in many opto-electric fields mentioned above.In this review,the latest research progress on photochromic materials with ions recognition ability is presented.Furthermore,based on current development of these photo-switchable systems with ions recognition ability,further development as well as existing challenges are also dis-cussed and put in prospect.
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