Synthesis, structure and photocatalytic degradationof organic dyes of a copper(II) metal–organicframework (Cu–MOF) with a 4-coordinatedthree-dimensional CdSO4topology

Lin-Lu Qian, Zhi-Xiang Wang, Hai-Xin Tian, Min Li, Bao-Long Li^*（李宝龙） and Hai-Yan Li

State and Local Joint Engineering Laboratory for Functional Polymeric Materials, College of Chemistry, ChemicalEngineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China.

Acta Cryst. (2019). C75, 1053--1059

Metal–organic frameworks (MOFs) have attracted much inter­est in the fields of gas separation and storage, catalysis synthesis, nonlinear optics, sensors, luminescence, magnetism, photocatalysis gradation and crystal engineering because of their diverse properties and intriguing topologies. A Cu–MOF, namely poly[[(μ₂-succinato-κ²O:O′){μ₂-tris­[4-(1,2,4-triazol-1-yl)phen­yl]amine-κ²N:N′}copper(II)] dihydrate], {[Cu(C₄H₄O₄)(C₂₄H₁₈N₁₀)]·2H₂O}_n or {[Cu(suc)(ttpa)]·2H₂O}_n, (I), was synthesized by the hydro­thermal method using tris­[4-(1,2,4-triazol-1-yl)phen­yl]amine (ttpa) and succinate (suc²⁻), and characterized by IR, powder X-ray diffraction (PXRD), luminescence, optical band gap and valence band X-ray photoelectron spectroscopy (VB XPS). Cu–MOF (I) shows a twofold inter­penetrating 4-coordinated three-dimensional CdSO₄ topology with point symbol {6⁵·8}. It presents good photocatalytic degradation of methyl­ene blue (MB) and rhodamine B (RhB) under visible-light irradiation. A photocatalytic mechanism was proposed and confirmed.

链接：http://scripts.iucr.org/cgi-bin/paper?S2053229619009306