Design of Flexible Lewis Acidic Sites in Porous Coordination Polymers by using the Viologen Moiety

Angew Chem Int Ed Engl. 2012 Aug 13;51(33):8369-72.

Higuchi M, Nakamura K, Horike S, Hijikata Y, Yanai N, Fukushima T, Kim J, Kato K, Takata M, Watanabe D, Oshima S, Kitagawa S.

Institute for Integrated Cell-Material Sciences, Kyoto University, 69 Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.

SUMMARY

A novel porous coordination polymer with a charged organic surface (COS) comprising a zwitterionic organic linker, viologen, has been synthesized. The COS shows strong Lewis acidity accompanied with flexibility, and the isosteric heat of H2 adsorption is 9.5 kJ mol−1, which is comparable to that of open metal sites (OMSs).

 

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Additional Information:

The synchrotron radiation experiments were performed at the BL44B2 in the SPring-8 with the approval of the RIKEN (Proposal No. 20090066). This work was supported by the JX Nippon Oil & Energy Corporation, ERATO “Kitagawa Integrated Pores Project” of the Japan Science and Technology Agency (JST), and the New Energy and Industrial Technology Development Organization (NEDO).

 

Design of Flexible Lewis Acidic Sites in Porous Coordination Polymers by using the Viologen Moiety

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