Interpenetration Isomerism in Triptycene-Based Hydrogen-Bonded Organic Frameworks

Penghao Li, Peng Li, Matthew R. Ryder, Zhichang Liu, Charlotte L. Stern, Omar k Farha, J Fraser Stoddart

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We describe an example of “interpenetration isomerism” in three-dimensional hydrogen-bonded organic frameworks. By exploiting the crystallization conditions for a peripherally extended triptycene H 6 PET, we can modulate the interpenetration of the assembled frameworks, yielding a two-fold interpenetrated structure PETHOF-1 and a five-fold interpenetrated structure PETHOF-2 as interpenetration isomers. In PETHOF-1, two individual nets are related by inversion symmetry and form an interwoven topology with a large guest-accessible volume of about 80 %. In PETHOF-2, five individual nets are related by translational symmetry and are stacked in an alternating fashion. The activated materials show permanent porosity with Brunauer-Emmett-Teller surface areas exceeding 1100 m 2 g −1 . Synthetic control over the framework interpenetration could serve as a new strategy to construct complex supramolecular architectures from simple organic building blocks.

Original languageEnglish (US)
Pages (from-to)1664-1669
Number of pages6
JournalAngewandte Chemie - International Edition
Volume58
Issue number6
DOIs
StatePublished - Feb 4 2019

Fingerprint

Crystallization
Isomers
Hydrogen
Porosity
Topology
triptycene

Keywords

  • crystal engineering
  • hydrogen-bonded organic frameworks
  • interpenetration isomerism
  • porous molecular solids
  • supramolecular chemistry

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

Li, Penghao ; Li, Peng ; Ryder, Matthew R. ; Liu, Zhichang ; Stern, Charlotte L. ; Farha, Omar k ; Stoddart, J Fraser. / Interpenetration Isomerism in Triptycene-Based Hydrogen-Bonded Organic Frameworks. In: Angewandte Chemie - International Edition. 2019 ; Vol. 58, No. 6. pp. 1664-1669.
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Interpenetration Isomerism in Triptycene-Based Hydrogen-Bonded Organic Frameworks. / Li, Penghao; Li, Peng; Ryder, Matthew R.; Liu, Zhichang; Stern, Charlotte L.; Farha, Omar k; Stoddart, J Fraser.

In: Angewandte Chemie - International Edition, Vol. 58, No. 6, 04.02.2019, p. 1664-1669.

Research output: Contribution to journalArticle

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