Ma, N (Ma, Ning)^{[ 1 ]} ; Lin, C (Lin, Cong)^{[ 2 ]} ; Wu, N (Wu, Nian)^{[ 3 ]} ; Liu, Q (Liu, Qi)^{[ 1 ]} ; Ma, JL (Ma, Jia-Le)^{[ 4 ]} ; Meng, W (Meng, Wei)^{[ 5 ]} ; Wang, XS (Wang, Xiao-Shuang)^{[ 1 ]} ; Zhang, L (Zhang, Lu)^{[ 1 ]} ; Xu, XH (Xu, Xiaohui)^{[ 1 ]} ; Zhao, YF (Zhao, Yifang)^{[ 2 ]} ; Zhuang, L (Zhuang, Lin)^{[ 3 ]} ; Fan, J (Fan, Jun)^{[ 4 ]} ; Sun, JL (Sun, Junliang)^{[ 2 ]} ; Zhuo, RX (Zhuo, Ren-Xi)^{[ 1 ]} ; Zhang, XZ (Zhang, Xian-Zheng)^{[ 1 ]}

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)center dot 2H(2)O, 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 coordinationnumbers 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.

KeyWords Plus:ORGANIC FRAMEWORKS; CARBON-DIOXIDE; WATER; TRANSFORMATION; ADSORPTION; CRYSTAL; CAPTURE; DESIGN; SINGLE; FAULTS

通讯作者地址: Zhang, XZ (通讯作者)

Wuhan Univ, Inst Adv Studies, Dept Chem, Key Lab Biomed Polymers,Minist Educ, Wuhan 430072, Hubei, Peoples R China.

Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China.

地址:

电子邮件地址:junliang.sun@pku.edu.cn; xz-zhang@whu.edu.cn

原文PDF链接：

http://pubs.rsc.org/en/Content/ArticleLanding/2017/TA/C7TA08002F#!divAbstract