The research team of Professor Wang Cheng of Wuhan University has made new progress in responsive porous frame crystal materials

Recently, advanced materials, a top journal in the field of materials, published the latest research results on responsive porous framework crystal materials (DOI: 10.1002 / ADMA 201802329) by Professor Wang Cheng, School of chemistry and molecular science, Wuhan University The thesis is entitled "tuning the photoinduced electron transfer in a Zr MOF: toward solid state fluorescent molecular switch and turn on sensor" The first author is guibo, a doctoral student, and the corresponding author is Professor Wang Cheng, researcher Zhang Deqing of Institute of chemistry, Chinese Academy of Sciences, and Professor Yang chuluo's team have provided help in fluorescence test The research was supported by NSFC, Hubei innovation team and independent scientific research of Wuhan University Professor Wang Cheng's research group has been devoted to the construction of responsive porous frame crystal materials and exploring their potential applications in different fields In previous work, starting from the design and synthesis of organic molecular switches, they realized the efficient and reversible regulation of organic molecular switches in solid state (chem Mater 2015, 27, 6426) and constructed the gated and controllable drug release system of MOFs (SCI Adv 2016, 2, e1600480) by immobilizing them into the framework of metal organic framework (MOFs) Recently, they have also been invited to write a review on the solid-state control concept of organic molecular switches (macromol Rapid commin 2018, 39, 1700388) On this basis, Professor Wang Cheng's group introduced the luminescent group and the electron acceptor into the MOF framework at the same time, and proposed a new strategy of simply and efficiently realizing the regulation of light-induced electron transfer (PET) in solid state Although the fluorophores and electron acceptors are not directly connected, the pet process between them has a very strong quenching effect on the fluorescence, and the fluorescence of the prepared MOF is very weak Interestingly, by regulating the acceptor's electron receptivity, we can successfully achieve efficient regulation of fluorescent PET process in MOFs, and build solid-state fluorescent switch and fluorescent enhanced probe based on MOFs Because the fluorophores and electron acceptors do not need to be covalently linked and can be combined according to the actual needs, this study provides a new idea for the subsequent construction of responsive MOFs based on pet.