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Issue 14, 2012

Entangled coordination polymers with mixed N- and O-donor organic linkers: A case of module-matching priority

Author affiliations

Abstract

A series of four coordination polymers showing entangled architectures based on cobalt and mixed N-donor/O-donor ligands, namely [Co(4,4′-BPIPA)(TP)]·2DMF (1), [Co(4,4′-BPIPA)(2,6-NDC)(DMF)]·DMF (2), [Co(4,4′-BPIPA)(2,6-NDC)]·2DMF (3) and [Co(4,4′-BPIPA)(4,4′-BPDC)]·2DMF (4) (4,4′-BPIPA = N,N′-bis-4-pyridinyl-isophthalamide, TP = terephthalic acid, 2,6-NDC = 2,6-naphthalenedicarboxylic acid, 4,4′-BPDC = 4,4′-biphenyldicarboxylic acid), have been synthesized under solvothermal conditions. Complex 1, containing 4,4′-BPIPA and relatively short dicarboxylate ligands (TP), exhibits two-dimensional (2D) two-fold interpenetration of double wavy 44-sql nets. Complex 2 displays interesting 2D→3D parallel polycatenation of undulated 2D 44-sql layers built by 4,4′-BPIPA and moderate dicarboxylate ligands (2,6-NDC). Complexes 3 and 4, although constructed of dicarboxylate ligands with different lengths (moderate 2,6-NDC and long 4,4′-BPDC), possess similar 3-fold interpenetration of identical self-catenated single nets with 65·8-mok topologies. It has been found that the length of the dicarboxylate ligands plays a key role of module-matching in the self-assemblies of complexes 1–4. Moreover, the effect of the conformations of 4,4′-BPIPA, which can be controlled by tuning reaction temperatures, is also discussed.

Graphical abstract: Entangled coordination polymers with mixed N- and O-donor organic linkers: A case of module-matching priority

Supplementary files

Article information


Submitted
10 Oct 2011
Accepted
22 Nov 2011
First published
06 Jan 2012

Dalton Trans., 2012,41, 4146-4152
Article type
Paper

Entangled coordination polymers with mixed N- and O-donor organic linkers: A case of module-matching priority

L. Han, Y. Gong, Z. Lin, J. Lü and R. Cao, Dalton Trans., 2012, 41, 4146 DOI: 10.1039/C2DT11899H

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