State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, CAS, Fuzhou, Fujian, 350002, P. R. China.
Current address: Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14476, Potsdam, Germany.
Angew Chem Int Ed Engl. 2017 Nov 13;56(46):14458-14462. doi: 10.1002/anie.201707290. Epub 2017 Oct 13.
A viologen-based Borromean entangled porous framework was found to be sensitive to both Cu and Mo X-ray sources, showing rapid photochromic response and recovery within one minute. The X-ray-induced photochromic process is accompanied by a reversible single-crystal-to-single-crystal (SC-SC) structural transformation, an unprecedented phenomenon for X-ray sensitive materials. The complex can be further processed into portable thin films for detecting the dose of the X-ray exposure. Moreover, the photochromism can occur over a broad temperature range of 100-333 K, both in the form of single crystals and thin films, making it a potential candidate for practical indoor and outdoor applications.
一种基于联吡啶的博洛米安纠缠多孔骨架被发现对 Cu 和 Mo X 射线源均具有敏感性，在一分钟内表现出快速光致变色响应和恢复。X 射线诱导的光致变色过程伴随着可逆的单晶-单晶（SC-SC）结构转变，这是 X 射线敏感材料中前所未有的现象。该配合物可以进一步加工成便携式薄膜，用于检测 X 射线照射的剂量。此外，光致变色可以在 100-333 K 的较宽温度范围内发生，无论是单晶还是薄膜形式，使其成为实际室内和室外应用的潜在候选者。
