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  • Title: Intercalation in layered metal-organic frameworks: reversible inclusion of an extended π-system.
    Author: Arslan HK, Shekhah O, Wieland DC, Paulus M, Sternemann C, Schroer MA, Tiemeyer S, Tolan M, Fischer RA, Wöll C.
    Journal: J Am Chem Soc; 2011 Jun 01; 133(21):8158-61. PubMed ID: 21534604.
    Abstract:
    We report the synthesis of layered [Zn(2)(bdc)(2)(H(2)O)(2)] and [Cu(2)(bdc)(2)(H(2)O)(2)] (bdc = benzdicarboxylate) metal-organic frameworks (MOF) carried out using the liquid-phase epitaxy approach employing self-assembled monolayer (SAM) modified Au-substrates. We obtain Cu and Zn MOF-2 structures, which have not yet been obtained using conventional, solvothermal synthesis methods. The 2D Cu(2+) dimer paddle wheel planes characteristic for the MOF are found to be strictly planar, with the planes oriented perpendicular to the substrate. Intercalation of an organic dye, DXP, leads to a reversible tilting of the planes, demonstrating the huge potential of these surface-anchored MOFs for the intercalation of large, planar molecules.
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