Issue 16, 2011

Cadmium(ii) and zinc(ii) metal–organic frameworks with anthracene-based dicarboxylic ligands: solvothermal synthesis, crystal structures, and luminescent properties

Abstract

Five new coordination polymers, namely, [Cd4(L11)2(DPP)2(DMF)2(SO4)2] (1), [Zn2(L11)(DPP)2Cl2] (2), [Cd(L222)(DPP)] (3), [Zn(L222)(DPP)] (4) and {[Cd2(L222)Cl4][(CH3)2NH2]2} (5), (DPP = 1,3-di(4-pyridyl)propane and DMF = N,N-dimethylformamide), were prepared by solvothermal reactions of anthracene-9,10-dicarboxylic acid (H2L11) or anthracene-1,5-dicarboxylic acid (H2L222) with CdII or ZnII ions, and were structurally characterized by IR, elemental analysis, XRPD and single crystal X-ray diffraction. Complex 1 consists of a three-dimensional (3D) network with bcu (CsCl-type) topology assembled by pillar ligands L122, DPP and CdII ions and has one-dimensional (1D) channels running along the a-axis. In the case of complex 2, the CdII and SO42 ions are replaced by ZnII and Cl, resulting in a 1D ladder chain. Complexes 3 and 4 are made up of longer pillars, H2L222 instead of H2L11, and have similar 3D four-fold interpenetrating diamond frameworks. And complex 5 forms a two-dimensional (2D) (32.62.72) kagóme structure after taking out the longer pillar DPP. Moreover, the luminescence properties of all the complexes and the corresponding ligands in the solid state at room temperature have been investigated.

Graphical abstract: Cadmium(ii) and zinc(ii) metal–organic frameworks with anthracene-based dicarboxylic ligands: solvothermal synthesis, crystal structures, and luminescent properties

Supplementary files

Article information

Article type
Paper
Submitted
05 Mar 2011
Accepted
11 May 2011
First published
24 Jun 2011

CrystEngComm, 2011,13, 5152-5161

Cadmium(II) and zinc(II) metal–organic frameworks with anthracene-based dicarboxylic ligands: solvothermal synthesis, crystal structures, and luminescent properties

J. Wang, T. Hu and X. Bu, CrystEngComm, 2011, 13, 5152 DOI: 10.1039/C1CE05287J

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