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Issue 6, 2010
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Cadmium(ii) coordination polymers based on a bulky anthracene-based dicarboxylate ligand: crystal structures and luminescent properties

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Abstract

In our efforts to continuously explore the influence of ligands with larger conjugated π-systems on the related structures and properties of their complexes, four CdII complexes with anthracene-9,10-dicarboxylate (L) and relevant auxiliary ligands were synthesized and characterized: {[Cd2(L)2(bipy)(H2O)2](C2H5OH)0.5(H2O)2.25} (1), Cd2(L)(HL)2(phen)4 (2), {[Cd2(L)1.5(Hpypz)4](L)0.5} (3), and {[Cd(L)2](H2daco)(C2H5OH)2(H2O)} (4) (bipy = 2,2′-bipyridine, phen = 1,10-phenanthroline, Hpypz = 3-(2-pyridyl)pyrazole, and daco = 1,5-diazacyclooctane). Structural analyses show that complex 1 has a three-dimensional (3D) structure with a Schläfli symbol of (6·82)2(6·85). Complexes 2 and 3 take dinuclear and two-dimensional (2D) structures, respectively, due to the introduction of different 2,2′-bipyridyl-like chelating ligands, phen for 2 and Hpypz for 3. Complex 4 possesses another three-dimensional (3D) two-fold interpenetrating diamondoid network by introducing daco as an auxiliary co-ligand. The present results indicate that the natures of the auxiliary ligands have important effects on the formation of the final structures of such complexes. Moreover, the luminescent properties of complexes 1–4 and the corresponding ligands have also been investigated in detail.

Graphical abstract: Cadmium(ii) coordination polymers based on a bulky anthracene-based dicarboxylate ligand: crystal structures and luminescent properties

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Supplementary files

Article information


Submitted
10 Nov 2009
Accepted
13 Jan 2010
First published
28 Jan 2010

CrystEngComm, 2010,12, 1833-1841
Article type
Paper

Cadmium(II) coordination polymers based on a bulky anthracene-based dicarboxylate ligand: crystal structures and luminescent properties

C. Liu, J. Wang, Z. Chang, L. Yan and X. Bu, CrystEngComm, 2010, 12, 1833
DOI: 10.1039/B923516G

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