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Title: “Interpenetration Isomerism” of Triptycene-Based Hydrogen-Bonded Organic Frameworks

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [1];  [2];  [3];  [1];  [1];  [4]
  1. Northwestern Univ., Evanston, IL (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Westlake University, Hangzhou (China)
  4. Northwestern Univ., Evanston, IL (United States); Tianjin University (China); University of New South Wales, Sydney (Australia)

We describe an example of “interpenetration isomerism” in three-dimensional hydrogen-bonded organic frameworks. By exploiting the crystallization conditions for a peripherally extended triptycene H6PET, 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 m2 g-1. Synthetic control over the framework interpenetration could serve as a new strategy to construct complex supramolecular architectures from simple organic building blocks.

Research Organization:
University of Notre Dame, IN (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
Grant/Contract Number:
NA0003763; AC02-05CH11231; AC05-00OR22725
OSTI ID:
1488530
Alternate ID(s):
OSTI ID: 1492749; OSTI ID: 1513397
Journal Information:
Angewandte Chemie (International Edition), Vol. 58, Issue 6; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 75 works
Citation information provided by
Web of Science

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Controlled Growth of Ag Nanocrystals in a H‐Bonded Open Framework journal September 2019
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