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Article

One-Dimensional Mercury Halide Coordination Polymers Based on A Semi-Rigid N-Donor Ligand: Reversible Structural Transformation

1
Department of Chemistry, Chung Yuan Christian University, Chung-Li 320, Taiwan
2
Department of Chemistry, Amrit Science Campus, Tribhuvan University, Kathmandu 44600, Nepal
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(3), 436; https://doi.org/10.3390/polym11030436
Received: 15 February 2019 / Revised: 1 March 2019 / Accepted: 4 March 2019 / Published: 6 March 2019
(This article belongs to the Special Issue Metallopolymer, supramolecular chemistry and materials)
Four one-dimensional (1D) mercury(II) halide coordination polymers have been synthesized by using a semi-rigid N-donor ligand, 2,2′-(1,4-phenylene)-bis(N-(pyridin-3-yl)acetamide) (1,4-pbpa). While [Hg(1,4-pbpa)Cl2·CH3OH]n, 1, forms a sinusoidal chain, the complexes [Hg(1,4-pbpa)X2]n (X = Cl, 2; Br, 3; I, 4) are helical. The sinusoidal 1 undergoes reversible structural transformation with helical 2 upon removal and uptake of CH3OH, which was accompanied with the conformation adjustment of the 1,4-pbpa ligand from trans anti-anti to trans syn-anti. Pyridyl ring rotation of the 1,4-pbpa ligand that results in the change of the ligand conformation is proposed for the initiation of the structural transformation. View Full-Text
Keywords: coordination polymer; bis-pyridyl-bis-amide; structural transformation; mercury halide coordination polymer; bis-pyridyl-bis-amide; structural transformation; mercury halide
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MDPI and ACS Style

Mahat Chhetri, P.; Yang, X.-K.; Yang, C.-T.; Chen, J.-D. One-Dimensional Mercury Halide Coordination Polymers Based on A Semi-Rigid N-Donor Ligand: Reversible Structural Transformation. Polymers 2019, 11, 436. https://doi.org/10.3390/polym11030436

AMA Style

Mahat Chhetri P, Yang X-K, Yang C-T, Chen J-D. One-Dimensional Mercury Halide Coordination Polymers Based on A Semi-Rigid N-Donor Ligand: Reversible Structural Transformation. Polymers. 2019; 11(3):436. https://doi.org/10.3390/polym11030436

Chicago/Turabian Style

Mahat Chhetri, Pradhumna, Xiang-Kai Yang, Chih-Tung Yang, and Jhy-Der Chen. 2019. "One-Dimensional Mercury Halide Coordination Polymers Based on A Semi-Rigid N-Donor Ligand: Reversible Structural Transformation" Polymers 11, no. 3: 436. https://doi.org/10.3390/polym11030436

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