Syntheses and catalytic performances of three coordination polymers with tetracarboxylate ligands
Three zinc(Ⅱ)and cobalt(Ⅱ)coordination polymers,namely {[Zn2(μ6-adip)(phen)2]4H2O}n(1),{[Co2(μ6-adip)(bipy)2]·4H2O}n(2),and[Co2(μ4-adip)(μ-bpa)2]n(3)have been constructed hydrothermally using H4adip(H4adip=5,5'-azanediyldiisophthalic acid),phen(phen=1,10-phenanthroline),bipy(bipy=2,2'-bipyridine),bpa(bpa=bis(4-pyridyl)amine),and zinc and cobalt chlorides at 160 ℃.The products were isolated as stable crystalline solids and were characterized by IR spectra,elemental analyses,thermogravimetric analyses,and single-crystal X-ray diffrac-tion analyses.Single-crystal X-ray diffraction analyses revealed that three compounds crystallize in the orthorhom-bic system Pnna(1 and 2)or P21212(3)space groups.All compounds exhibit 3D frameworks.The catalytic perfor-mances in the Henry reaction of these compounds were investigated.Compound 3 exhibited an effective catalytic activity in the Henry reaction at 70℃.CCDC:2339391,1;2339392,2;2339393,3.
万方数据
