A 2D covalent organic framework with 4.7-nm pores and insight into its interlayer stacking

Eric L. Spitler, Brian T. Koo, Jennifer L. Novotney, John W. Colson, Fernando J. Uribe-Romo, Gregory D. Gutierrez, Paulette Clancy*, William R. Dichtel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

207 Scopus citations

Abstract

Two-dimensional layered covalent organic frameworks (2D COFs) organize π-electron systems into ordered structures ideal for exciton and charge transport and exhibit permanent porosity available for subsequent functionalization. A 2D COF with the largest pores reported to date was synthesized by condensing 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) and 4,4′-diphenylbutadiynebis(boronic acid) (DPB). The COF was prepared as both a high surface area microcrystalline powder as well as a vertically oriented thin film on a transparent single-layer graphene/fused silica substrate. Complementary molecular dynamics and density functional theory calculations provide insight into the interlayer spacing of the COF and suggest that adjacent layers are horizontally offset by 1.7-1.8 Å, in contrast to the eclipsed AA stacking typically proposed for these materials.

Original languageEnglish (US)
Pages (from-to)19416-19421
Number of pages6
JournalJournal of the American Chemical Society
Volume133
Issue number48
DOIs
StatePublished - Dec 7 2011

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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