PMID- 26592095
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20160610
LR  - 20151223
IS  - 1520-5126 (Electronic)
IS  - 0002-7863 (Linking)
VI  - 137
IP  - 50
DP  - 2015 Dec 23
TI  - A Convenient Strategy for Designing a Soft Nanospace: An Atomic Exchange in a 
      Ligand with Isostructural Frameworks.
PG  - 15825-32
LID - 10.1021/jacs.5b09666 [doi]
AB  - Direct observation of gas molecules confined in the nanospace of porous materials 
      by single-crystal X-ray diffraction (SXRD) technique is significant because it 
      leads to deep insight into the adsorption mechanism and the actual state of the 
      adsorbents in molecular level. A recent study revealed that flexibility is one of 
      the important factors to achieve periodic guest accommodation in the nanospace 
      enabling direct observation of gas molecules. Here, we report a convenient 
      strategy to tune the framework flexibility by just an atomic exchange in a 
      ligand, which enables us to easily construct a soft nanospace as the best 
      platform to study gas adsorption. Indeed, we succeeded to observe C2H2 and CO2 
      molecules confined in the pores of a flexible porous coordination polymer (PCP-N) 
      in different configurations using SXRD measurement, whereas gas molecules in a 
      rigid framework (PCP-C) isostructural to PCP-N were not seen 
      crystallographically. The result of the coincident in situ powder X-ray 
      diffraction and adsorption measurement for PCP-N unambiguously showed that the 
      framework could flexibly transform to trap gas molecules with a commensurate 
      fashion. In addition, for PCP-N, we found that the adsorbed gas molecules induced 
      significant structural change involving dimensional change of the pore from 
      one-dimensional to three-dimensional, and subsequently, additional gas molecules 
      formed periodic molecular clusters in the nanospace.
FAU - Ma, Yunsheng
AU  - Ma Y
AD  - School of Chemistry and Materials Engineering, Jiangsu Key Laboratory of Advanced 
      Functional Materials, Changshu Institute of Technology , Changshu, Jiangsu 
      215500, People's Republic of China.
AD  - Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University , 
      Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
FAU - Matsuda, Ryotaro
AU  - Matsuda R
AD  - Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University , 
      Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
AD  - Department of Applied Chemistry, Graduate School of Engineering, Nagoya 
      University , Chikusa-ku, Nagoya 464-8603, Japan.
AD  - Japan Science and Technology Agency (JST) , PRESTO, 4-1-8 Honcho, Kawaguchi, 
      Saitama 332-0012, Japan.
FAU - Sato, Hiroshi
AU  - Sato H
AD  - Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University , 
      Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
FAU - Hijikata, Yuh
AU  - Hijikata Y
AD  - Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University , 
      Chikusa-ku, Nagoya 464-8602, Japan.
FAU - Li, Liangchun
AU  - Li L
AD  - Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University , 
      Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
FAU - Kusaka, Shinpei
AU  - Kusaka S
AD  - Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University , 
      Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
FAU - Foo, Mawlin
AU  - Foo M
AD  - Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University , 
      Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
FAU - Xue, Fengfeng
AU  - Xue F
AD  - School of Chemistry and Materials Engineering, Jiangsu Key Laboratory of Advanced 
      Functional Materials, Changshu Institute of Technology , Changshu, Jiangsu 
      215500, People's Republic of China.
FAU - Akiyama, George
AU  - Akiyama G
AD  - Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University , 
      Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
FAU - Yuan, Rongxin
AU  - Yuan R
AD  - School of Chemistry and Materials Engineering, Jiangsu Key Laboratory of Advanced 
      Functional Materials, Changshu Institute of Technology , Changshu, Jiangsu 
      215500, People's Republic of China.
FAU - Kitagawa, Susumu
AU  - Kitagawa S
AD  - Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University , 
      Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
AD  - Department of Synthetic Chemistry and Biological Chemistry, Graduate School of 
      Engineering, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20151214
PL  - United States
TA  - J Am Chem Soc
JT  - Journal of the American Chemical Society
JID - 7503056
EDAT- 2015/11/26 06:00
MHDA- 2015/11/26 06:01
CRDT- 2015/11/24 06:00
PHST- 2015/11/24 06:00 [entrez]
PHST- 2015/11/26 06:00 [pubmed]
PHST- 2015/11/26 06:01 [medline]
AID - 10.1021/jacs.5b09666 [doi]
PST - ppublish
SO  - J Am Chem Soc. 2015 Dec 23;137(50):15825-32. doi: 10.1021/jacs.5b09666. Epub 2015 
      Dec 14.