Issue 10, 2012
From the journal:

Soft Matter

Coordination polymer gel derived from a tetrazoleligand and Zn2+: spectroscopic and mechanical properties of an amorphous coordination polymer gel†

Hyejin Lee,a   Sunwoo Kang,b   Jin Yong Lee*b  and  Jong Hwa Jung*a  

* Corresponding authors

a Department of Chemistry, Research Institute of Natural Science, Gyeongsang National University, Jinju, Korea
E-mail: jonghwa@gnu.ac.kr

b Department of Chemistry and Institute of Basic Science Sungkyunkwan University, Suwon, Korea
E-mail: jinylee@skku.edu

Abstract

A tetrazole-based ligand forms a supramolecular gel in the presence of transition metal ions, particularly Zn2+, Cu2+ and Co2+. The gels have been characterized by SEM, TEM, fluorescence spectroscopy, rheometry and fluorescence microscopy. The polymer exhibits a strong fluorescence enhancement upon gel formation. According to DFT calculations, one of Zn2+ is bound to 4 tetrazole moieties and 2 solvent molecules by octahedral structure. The Zn2+-induced gelation does not strongly depend on anions. The Zn2+-tetrazole ligand gel shows a spherical structure with 20–50 nm diameter. The rheological properties of the Zn2+-tetrazole ligand gel were strongly dependent on the concentration of Zn2+.

Graphical abstract: Coordination polymer gel derived from a tetrazole ligand and Zn2+: spectroscopic and mechanical properties of an amorphous coordination polymer gel

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Article information

DOI
https://doi.org/10.1039/C2SM07231A
Article type
Paper
Submitted
22 Nov 2011
Accepted
06 Jan 2012
First published
01 Feb 2012

Soft Matter, 2012,8, 2950-2955

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Coordination polymer gel derived from a tetrazole ligand and Zn2+: spectroscopic and mechanical properties of an amorphous coordination polymer gel

H. Lee, S. Kang, J. Y. Lee and J. H. Jung, Soft Matter, 2012, 8, 2950 DOI: 10.1039/C2SM07231A

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