Zhang Hao, Wu Xintao
State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China; School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences Beijing 100049 P. R. China.
State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China.
Adv Sci (Weinh). 2015 Nov 19;3(4):1500224. doi: 10.1002/advs.201500224. eCollection 2016 Apr.
Metal-organic complexes (MOCs) as promising candidates for directly visual X-ray detection at room temperature are rare and discovered unexpectedly, even though every crystalline material needs X-ray diffraction studies. Here, we report a rational strategy of mimicking host-guest system for developing high-sensitive X-ray-induced photochromic materials. Two resulting calix-like metal-organic complexes (cMOC-1 and cMOC-2) were prepared by encapsulating the electron-capturing "guest" into the cavity of calix-like electron-donating "host." One of them (cMOC-1) achieves instantaneous X-ray-induced photochromism and easy recovery by synergizing the aprotic matrix of MOC and similar host-guest interaction. Their strikingly different response to X-ray irradiation resulting from the structural difference demonstrates the feasibility and acceptability of our design strategy. This strategy may open new perspectives for developing high-performance photo-responsive functional materials.
金属有机配合物（MOCs）作为室温下直接可视化X射线检测的有前途的候选材料，虽然每种晶体材料都需要进行X射线衍射研究，但却很少见且是意外发现的。在此，我们报告一种模仿主客体系统来开发高灵敏度X射线诱导光致变色材料的合理策略。通过将电子捕获“客体”封装到杯状供电子“主体”的空腔中，制备了两种所得的杯状金属有机配合物（cMOC-1和cMOC-2）。其中一种（cMOC-1）通过协同MOC的非质子基质和类似的主客体相互作用，实现了即时的X射线诱导光致变色和易于恢复。它们因结构差异而对X射线照射产生的显著不同响应证明了我们设计策略的可行性和可接受性。该策略可能为开发高性能光响应功能材料开辟新的前景。
