Surface structure of metal-organic framework grown on self-assembled monolayers revealed by high-resolution atomic force microscopy

J Am Chem Soc. 2008 Nov 5;130(44):14446-7. doi: 10.1021/ja8069743. Epub 2008 Oct 14.

Abstract

The surface structure of an individual metal-organic framework (MOF) microcrystal grown on a functionalized surface has been successfully investigated for the first time in air and vacuum using high-resolution atomic force microscopy. Moreover, this detailed surface analysis has been utilized to optimize the MOF formation procedure to obtain a defect-free surface structure. Comparison of obtained data with recent microscopic studies performed on the same MOF crystal but grown by a conventional procedure clearly shows a much higher quality of crystals produced by surface oriented growth. Importantly, this method of preparing crystals suitable for microscopic analysis is also much faster (3 days compared to 2 years) and, in contrast to the conventional method, produces material suitable for in situ study. These results thus demonstrate for the first time the possibility of nanoscale investigation/modification of MOF surface structure.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Copper / chemistry*
  • Crystallization
  • Microscopy, Atomic Force
  • Microscopy, Electron, Transmission
  • Nanoparticles / chemistry
  • Organometallic Compounds / chemistry*
  • Silicon / chemistry*
  • Silicon Dioxide / chemistry*
  • Surface Properties
  • Tricarboxylic Acids / chemistry*

Substances

  • Organometallic Compounds
  • Tricarboxylic Acids
  • Silicon Dioxide
  • Copper
  • trimesic acid
  • Silicon