文献类型：期刊文献

英文题名：Selective catalytic properties determined by the molecular skeleton: Two new isostructural coordination polymers[{M(H2O)5}2( μ-4-bpdh) (oba)]∞ (M = Co, Ni)

作者：Wang, Xiaoxiao[1];Xu, Haitao[1];Han, Yu[1];Li, Yansong[1];Sheng, Chen[1];Xu, Zhenliang[1];Xu, Jieyu[1];Wang, Mengyan[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Membrane Sci & Engn R&D Lab, Chem Engn Res Ctr, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：461

起止页码：15

外文期刊名：INORGANICA CHIMICA ACTA

收录：;EI(收录号：20202208748866);WOS:【SCI-EXPANDED(收录号:WOS:000399712200003)】；

基金：We gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 21371058) and the Ministry of Education (A200-C-1101). This work was supported in part by East China University of Science & Technology (YA0157117) and the Key Laboratory for Ultrafine Materials of the Ministry of Education (ECUST).

语种：英文

外文关键词：Metal-organic coordination polymer; Crystal structure; Microcrystals; Selective catalysis; Molecular skeleton

摘要：Two new isostructural metal-organic coordination polymers [{M(H2O)(5)} 2(mu-4-bpdh)(oba)](infinity) (M = Co, Ni), 1Co and 2Ni, respectively, were constructed from 4-bpdh (2,5-bis(4-pyridyl)-3,4-diaza-2,4-hexadiene) and oba (4,4'-oxybis(benzoic acid)) in a MeOH-H2O solvent system. The Co (Ni) ion was located in a hexa-coordinate environment surrounded by five aqua ligands and one 4-bpdh ligand, which bridged two metal centers to form a rod-like structure. Both the Co and Ni coordination polymers can catalyze methyl orange (MO) and malachite green (MG), showing that the unique molecular skeleton determines their properties. Interestingly, different central metal ions of 1Co and 2Ni result in the difference of degradation efficiency. Furthermore, microcrystals of 1Co (2Ni) with different sizes and morphologies were obtained under various conditions. Additionally, a detailed oxidation catalytic mechanism of MO and MG was proposed. These two highly active coordination polymers that are able to selectively degrade organic dyes will be useful in many practical applications. (C) 2017 Elsevier B.V. All rights reserved.