KBe BO F (KBBF) is still the only practically usable crystal that can generate deep-ultraviolet (DUV) coherent light by direct second harmonic generation (SHG). However, applications are hindered by layering, leading to difficulty in the growth of thick crystals and compromised mechanical integrity. Despite efforts, it is still a great challenge to discover new nonlinear optical (NLO) materials that overcome the layering while keeping the DUV SHG available. Now, two new DUV NLO beryllium borates have been successfully designed and synthesized, NH Be BO F (ABBF) and γ-Be BO F (γ-BBF), which not only overcome the layering but also can be used as next-generation DUV NLO materials with the shortest type I phase-matching second-harmonic wavelength down to 173.9 nm and 146 nm, respectively. Significantly, γ-BBF is superior to KBBF in all metrics and would be the most outstanding DUV NLO crystal.

The first metal nitrate fluoride nonlinear optical material, Pb(NO)(HO)F, was synthesized with the largest second harmonic generation (SHG) effect (12 × KHPO) among nitrates. Theoretical calculations revealed the synergistic effect of [NO], lone pair electrons in Pb, and F for the SHG effect. The F also promoted the blue-shift of the ultraviolet cut-off edge.

KBe2BO3F2 (KBBF) is still the only practically usable crystal that can generate deep‐ultraviolet (DUV) coherent light by direct second harmonic generation (SHG). However, applications are hindered by layering, leading to difficulty in the growth of thick crystals and compromised mechanical integrity. Despite efforts, it is still a great challenge to discover new nonlinear optical (NLO) materials that overcome the layering while keeping the DUV SHG available. Now, two new DUV NLO beryllium borates have been successfully designed and synthesized, NH4Be2BO3F2 (ABBF) and γ‐Be2BO3F (γ‐BBF), which not only overcome the layering but also can be used as next‐generation DUV NLO materials with the shortest type I phase‐matching second‐harmonic wavelength down to 173.9 nm and 146 nm, respectively. Significantly, γ‐BBF is superior to KBBF in all metrics and would be the most outstanding DUV NLO crystal.

Before this work, adding chiral C centers into zeolitic imidazolate frameworks (ZIFs) has never been realized. Presented here are the first examples on achieving bulky homochirality in ZIF systems, and three homochiral zeolitic imidazolate-related frameworks with sodalite and dia topologies are successfully synthesized by employing enantiopure imidazolate derivatives. The results open a new blueprint on the synthetic design of homochiral ZIFs for future applications.

Three tetrahedral tetrazolate frameworks (TTFs) with SOD, and topologies (TTF-4, -5 and -6) are obtained by using the anion and solvent as structure-directing agents. The resulting SOD-type TTF-4 shows high chemical stability as well as high CO2 uptake capacity.

A dual-ligand strategy is used to construct two pillar-layered metal organic frameworks (MOFs) with [Zn(COO)] subunits (SBUs) and [ZnCo(ethanol)(COO)] SBUs, respectively. Remarkably, the Zn/Co mixed compound 2 exhibits excellent and adjustable photocatalytic activity to degrade crystal violet (CV) in water under visible light.

Two new sodium–zinc carbonates, NaZnCO3F and Na4Zn(CO3)3, were designed and synthesized.

Cu–I cluster-based MOFs show a broad range of absorption in the visible region and exhibit excellent photocatalytic degradation of methylene blue dye under visible light.