Intercalation in layered metal-organic frameworks: reversible inclusion of an extended π-system

J Am Chem Soc. 2011 Jun 1;133(21):8158-61. doi: 10.1021/ja2037996. Epub 2011 May 9.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Copper / chemistry
  • Intercalating Agents
  • Models, Molecular
  • Organometallic Compounds / chemistry*
  • Palmitic Acids / chemistry
  • Zinc / chemistry

Substances

  • 16-mercaptohexadecanoic acid
  • Intercalating Agents
  • Organometallic Compounds
  • Palmitic Acids
  • Copper
  • Zinc