Balancing Mechanical Stability and Ultrahigh Porosity in Crystalline Framework Materials

作者：Ines M. Hönicke, Irena Senkovska, Volodymyr Bon, Igor A. Baburin, Nadine Bönisch, Silvia Raschke, Jack D. Evans, Stefan Kaskel · 发表于：Angewandte Chemie International Edition · 年份：2018 · DOI：10.1002/anie.201808240 · 被引用次数：398 · 研究领域：Metal-Organic Frameworks: Synthesis and Applications、Covalent Organic Framework Applications、Magnetism in coordination complexes

Abstract A new mesoporous metal–organic framework (MOF; DUT‐60) was conceptually designed in silico using Zn 4 O 6+ nodes, ditopic and tritopic linkers to explore the stability limits of framework architectures with ultrahigh porosity. The robust ith‐d topology of DUT‐60 provides an average bulk and shear modulus (4.97 GPa and 0.50 GPa, respectively) for this ultra‐porous framework, a key prerequisite to suppress pore collapse during desolvation. Subsequently, a cluster precursor approach, resulting in minimal side product formation in the solvothermal synthesis, was used to produce DUT‐60, a new crystalline framework with the highest recorded accessible pore volume (5.02 cm 3 g −1 ) surpassing all known crystalline framework materials.