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Updated: Jul 23, 2025

Synthesis and Characterization of Functionalized Metal-organic Frameworks
Published on: September 5, 2014
Ultrastable 3D cage-like metal-organic frameworks constructed using polydentate cyanurate ligands and their gas
Wenhao Xing1, Kaijin Kang1, Jian Tang1
1Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China. wlyin@caep.cn.
Abstract:
Stability is a key factor that restricts the practical applications of metal-organic framework (MOF) materials. In this work, we report an ultrastable three-dimensional cage-like MOF, SrCu(HC3N3O3)2, constructed by a polydentate cyanurate ligand and two kinds of different metal nodes. A high ratio of coordination sites in organic ligands, specific coordination of strong acid with a strong base and weak acid with a weak base and double independent completed coordination networks endow SrCu(HC3N3O3)2 with outstanding thermal stability (up to 300 °C) and acid/alkali resistance (pH = 2-14). Moreover, SrCu(HC3N3O3)2 possesses the highest porosity up to 36.7% among cyanuric acid-based MOF materials and exhibits differentiated adsorption of C3H4 (63 cm3 g-1) and C3H6 (51 cm3 g-1). The breakthrough experiment further verified that efficient C3H4/C3H6 separation can be achieved under dynamic conditions by SrCu(HC3N3O3)2.
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