Abstract
Two highly stable metal-organic frameworks (MOFs) assembled by a flexible 1,4-bis(2-methylimidazol-1-yl) butane (bib), and two different aromatic carboxylate coligands, namely, [Zn(BDC-OH2)(bib)] (1) and [Cd-3(BTC)(2)(bib)(DMF)(3)] (2) (H2BDC-OH2 = 2,5-dihydroxyterephthalic acid, H3BTC = 1,3,5-benzenetribenzoic acid), were designed and synthesized. 1 showed a 4-fold interpenetration of 4-connected dia-type topological net. In 2, the 3D topological structure can be viewed as a (3,4,5)-connected network, and its Schlali point is {4.6(2)}(2) {4(2).6.8(3)} {4(6).8(9)}. Different auxiliary carboxylate ligands were examined with respect to the building of various structures. 1 and 2 have outstanding photocatalytic behaviors for the disintegration of methyl violet (MV) under UV irradiation.