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Issue 45, 2017
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Stomata-like metal peptide coordination polymer

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Abstract

The water-triggered reversible transformation plays a significant role in bio-systems. To develop artificial materials with reversible structural transformability under mild conditions would be helpful to understand how bio-systems work. Here we report on a flexible coordination polymer, Cu–(Gly–Thr)·2H2O, whose structure can be controlled by humidity or temperature. This porous coordination polymer shows reversible single-crystal to single-crystal transformation with surprisingly high thermal stability. It was found that the ordered transformation occurs via coordination bonds breaking and reforming without changing the coordination numbers and valence of the copper ion. This reversible transformation makes it especially efficient at taking up CO2 under wet conditions, which is similar to the function of plant stomata.

Graphical abstract: Stomata-like metal peptide coordination polymer

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Supplementary files

Article information


Submitted
12 Sep 2017
Accepted
18 Oct 2017
First published
19 Oct 2017

J. Mater. Chem. A, 2017,5, 23440-23445
Article type
Communication

Stomata-like metal peptide coordination polymer

N. Ma, C. Lin, N. Wu, Q. Liu, J. Ma, W. Meng, X. Wang, L. Zhang, X. Xu, Y. Zhao, L. Zhuang, J. Fan, J. Sun, R. Zhuo and X. Zhang, J. Mater. Chem. A, 2017, 5, 23440
DOI: 10.1039/C7TA08002F

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