摘要
Synthetic conditions and ligands are the key structural defining factors of metal-organic frameworks(MOFs).Therefore,reasonable optimization of these aspects is considered to be an effective means for designing materials with novel structures and target functions.Herein,two novel Co(Ⅱ)-based MOFs,namely[Co(HL)(dibp)]_(n)(HL-8) and{[Co_(2)(L)(OH)(dibp)]·DMA}_n(HL-9)(H_(3)L=2',6'-dimethyl-[1,1'-biphenyl]-3,4',5-tricarboxylic acid;dibp=4,4'-di(1H-imidazol-1-yl)-1,1-biphenyl]),have been hydrothermally synthesized and structurally characterized.HL-8 crystallizes in the orthorhombic system (Pna2_(1)) with a grid layer structure,while HL-9 crystallizes in the monoclinic P2_(1)/n space group assembled through Co_(4)(OH)_(2)clusters with organic ligands.Remarkably,benefiting from the finite cage-like structure,HL-9 exhibited enhanced performance in carbon dioxide(CO_(2)) adsorption/catalytic transformation and excellent size selectivity during dye molecular adsorption process.
基金
supported by the National Natural Science Foundation of China(Nos.21902022,21601028,81903501 and 22061019)
Qingchuang Science and Technology Plan of Shandong Province(No.2021KJ054)
the Natural Science Foundation of Shandong Province(Nos.ZR2018LB018,ZR2019QB026 and ZR2020KB014)
Scientific Research Foundation of Dezhou University(Nos.30101905,30102708 and 30102701)。
