摘要
Cryo-electron diffraction tomography(Cryo-EDT)has been developed to determine the crystal structures of covalent organic frameworks(COFs)and their host-guest interaction at the atomic precision,whose crystals are only submicron-sized,organic,porous,and dynamic.The keys of 3D electron diffraction(3D-ED)techniques are low-dose beam,sample cryo-handling,fast data collection,sensitive detector,and direct space structure solution.We envision the development of COF chemistry will be propelled by such powerful 3D-ED techniques for a better understanding at the molecular level and correlation of structures to chemicophysical properties.More details are discussed in the article by Zhang et al.on page 1153-1166.
