Issue 32, 2019

Multi-stimuli-responsive induced chirality of polyoxometalates in natural polysaccharide hydrogels

Abstract

Induced circular dichroism (ICD) of polyoxomolybdates and polyoxotungstates was realized in three kinds of natural polysaccharide hydrogels possessing hierarchical chirality. Interestingly, the extrinsic chiral factors were dominant in ionic κ/ι-carrageenan hybrids, while the ICD of clusters was dominantly influenced by the intrinsic alternating bond length (ABL) distortions of polyoxometalates in agarose hybrid. The optical activity of the POMs shows sensitive response to multiple stimuli, such as temperature, K+ salts, UV irradiation and redox agents.

Graphical abstract: Multi-stimuli-responsive induced chirality of polyoxometalates in natural polysaccharide hydrogels

Supplementary files

Article information

Article type
Communication
Submitted
12 Mar 2019
Accepted
27 Mar 2019
First published
27 Mar 2019

Chem. Commun., 2019,55, 4711-4714

Multi-stimuli-responsive induced chirality of polyoxometalates in natural polysaccharide hydrogels

R. Wang, X. Wan and J. Zhang, Chem. Commun., 2019, 55, 4711 DOI: 10.1039/C9CC01981B

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