A series of metal-organic frameworks based on 9,10-bis(imidazol-1-ylmethyl) anthracene and structurally related aromatic dicarboxylates: Syntheses, structures, and photoluminescence

作者：Kan, Wei-Qiu; Yang, Jin; Liu, Ying-Ying; Ma, Jian-Fang^*

来源：Polyhedron, 2011, 30(12): 2106-2113.

DOI：10.1016/j.poly.2011.05.035

• Metal-organic frameworks
• Aromatic dicarboxylate
• 9,10-Bis(imidazol-1-ylmethyl)anthracene

A series of new metal-organic frameworks (MOFs) based on 9,10-bis(imidazol-1-ylmethyl)anthracene and four structurally related aromatic dicarboxylares, namely, [Cd(L)(o-bdc)]center dot 1.25H(2)O (1), [Cd(L)(pydc)] (2), [Zn(L)(pydc)] (3), [Cd-3(L)(2)(m-bdc)(3)] (4) and [Cd(L)(p-bdc)]center dot 2H(2)O (5) (L = 9,10-bis(imidazol-1-ylmethyl)anthracene, o-H(2)bdc = 1,2-benzenedicarboxylic acid, H(2)pydc = 2,3-pyridinedicarboxylic acid, m-H(2)bdc = 1,3-benzenedicarboxylic acid, p-H(2)bdc = 1,4-benzenedicarboxylic acid) have been synthesized under hydrothermal conditions. Their structures have been determined by single-crystal X-ray diffraction analyses, and further characterized by infrared spectra (IR), elemental analyses and powder X-ray diffraction (PXRD). Compound 1 displays a two-dimensional (2D) layer structure, which is stabilized by intramolecular hydrogen-bonding interactions. Compounds 2 and 3 are isostructural and show 2D layer structures, which are further extended by intermolecular C-H center dot center dot center dot O hydrogen-bonding interactions to form 3D supramolecular frameworks. Compound 4 has a 2D layer structure with trinuclear units (Cd3(u(3)-O)(2)](6+). Compound 5 is a 3D three-fold interpenetrating framework with a Schlafli symbol (6(6).8). The structural differences of these compounds indicate that the anions play important roles in the resulting structures of the MOFs. The luminescent properties were also investigated for compounds 1-5.

• 出版日期2011-8-2
• 单位东北师范大学