Front Cover: Bifunctional Gyroidal MOFs: Highly Efficient Lewis Base and Lewis Acid Catalysts (Chem. Asian J. 20/2019)

Abstract

A family of gyroidal metal‐organic frameworks composited with transition‐metal ions and bi‐imidazolate ligands (BIm) was prepared and used as both Lewis base and acid catalysts. Benefiting from the intrinsic basicity of the ligands and the Lewis acidic sites of the open metal centers, the frameworks show excellent catalytic activities as Lewis base for the Knoevenagel condensation reaction between various aldehydes and malononitrile, and as Lewis acid for cyanosilylation reactions, providing advanced materials for both Lewis base and Lewis acid catalysis. More information can be found in the Full Paper by Xiao‐Ping Zhou, Tianfeng Chen, Dan Li et al. on page 3682 in Issue 20, 2019 (DOI: 10.1002/asia.201900853).