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Issue 40, 2020
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Fabrication of Cu(ii) based halobenzoate appended ladder polymers with efficient charge transport properties

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Abstract

Two isotypical Cu(II) based one-dimensional coordination polymers (1D CPs) [{Cu2(p-clba)4(bpe)2}{Cu(p-clba)2(bpe)(CH3OH)}]n·1.25H2O (1) and [{Cu2(p-brba)4(bpe)2}{Cu(p-brba)2(bpe)(CH3OH)}]n·1.25H2O (2) (H2p-clba = para-chlorobenzoic acid, H2p-brba = para-bromobenzoic acid and bpe = 1,2-bis(4-pyridyl)ethylene) have been synthesized and characterized by X-ray structure analysis. In the solid-state structure, both the compounds undergo X⋯π (X = Cl or Br) interactions to generate two-dimensional (2D) supramolecular architectures. Here, due to the larger size and better polarisability of the Br atom, the Br⋯π interaction is stronger than the Cl⋯π interaction, which accounts for the stronger interchain interactions in 2 as compared to 1. This is depicted in the observed electrical conductivity of the compounds. Compound 2 with stronger interchain interactions shows better charge transport and hence, increased conductivity.

Graphical abstract: Fabrication of Cu(ii) based halobenzoate appended ladder polymers with efficient charge transport properties

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Supplementary files

Article information


Submitted
09 Jun 2020
Accepted
02 Sep 2020
First published
02 Sep 2020

CrystEngComm, 2020,22, 6720-6726
Article type
Paper

Fabrication of Cu(II) based halobenzoate appended ladder polymers with efficient charge transport properties

S. Islam, B. Pal, S. Khan, S. Maity, S. Naaz, P. Ghosh, P. P. Ray and M. H. Mir, CrystEngComm, 2020, 22, 6720
DOI: 10.1039/D0CE00831A

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