Jing Niu

TL;DR: A general procedure to grow large single crystals of three-dimensional imine-based covalent organic framework materials and to collection of single-crystal x-ray diffraction data of up to 0.83-angstrom resolution, leading to unambiguous solution and precise anisotropic refinement.

TL;DR: It is found that adding an aging process prior to the reported synthetic procedure afforded the formation of an interpenetration isomer, dia-c7 COF-300, which is the first example of interpenetic isomerism in covalent organic frameworks (COFs).

TL;DR: For the first time a non-interpenetrated single-crystal COF is reported, LZU-306, which possesses the open structure constructed exclusively via covalent assembly, and provides a unique matrix-isolation platform to reticulate functional moieties into a well-defined and isolated state.

TL;DR: The diverse crystal size effects of two representative COFs based on the successful realization of crystal-size-controlled synthesis are reported, finding that size effect reflects in pore surface area by influencing the pore integrity, while for flexible COF-300 with straight channels, crystal size controls structural flexibility by altering the number of repeating units.

TL;DR: In this paper , an olefin-based, fluorescent COF (COF-Py-AN) with unique π-electron deficient groups was synthesized, which was a functionalized platform to realize sensing of πelectron enriched aromatic amines.