A Flexible Porous Coordination Polymer Functionalized by Unsaturated Metal Clusters


  • This work was supported by a Grants-in-Aid for Scientific Research in a Priority Area “Chemistry of Coordination Space” (No. 434) and Core Research for Evolutional Science and Technology (CREST) from the Ministry of Education, Culture, Sports, Science and Technology, Government of Japan. J.-P. Zhang is grateful to JSPS for a postdoctoral fellowship.


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Smart pores: A 3D coordination polymer [Ag2(Me4bpz)] (H2Me4bpz=3,3′,5,5′-tetramethyl-4,4′-bipyrazole) can not only reversibly adsorb and desorb CO2 and N2 (see picture: Ag pink, C gray, O red N blue) but also benzene and toluene despite its aperture being too small for these molecules. The host framework simultaneously expands some cavities and shrinks others to accommodate different aggregates of the arene molecules.