Single-Crystal High-Pressure X-ray Diffraction Study of Host Structure Compression in Clathrates of Dianin's Compound

Espen Zink Eikeland, Mette Borup, Maja Krüger Thomsen, Martin Roelsgaard, Jacob Overgaard, Mark A. Spackman, Bo Brummerstedt Iversen

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

5 Citations (Scopus)

Abstract

We present single-crystal high-pressure studies of the apohost of Dianin's compound (DC), as well as its clathrates with ethanol, acetic acid, and isopropanol, up to a pressure of 8.2(1) GPa. Despite having large cavities, these clathrates of DC are found to be very stable when exposed to high pressure, and even the apohost structure, which contains large void space regions, is stable up to pressures above 6.6(1) GPa. The similarity between the compression of the apohost and the DC clathrates is presumably due to the extraordinary strength of the host framework. Bulk modulus and linear compression values are derived for the apohost and DC/acetic acid clathrate. The observed compression is shown to be more isotropic than what is expected from experimental elastic tensor data in the literature, although the compression along the a-axis is the largest for all the studied clathrates. The pressure evolution of the refined atomic displacement parameters is shown to be a sensitive indicator of the accuracy of the crystal structure refinement.

Original languageEnglish
JournalCrystal Growth & Design
Volume20
Issue6
Pages (from-to)4092-4099
Number of pages8
ISSN1528-7483
DOIs
Publication statusPublished - 3 Jun 2020

Keywords

  • ADDUCT
  • CHEMISTRY
  • DENSITY
  • DYNAMICS
  • INTERACTION ENERGIES
  • THERMAL-CONDUCTIVITY

Fingerprint

Dive into the research topics of 'Single-Crystal High-Pressure X-ray Diffraction Study of Host Structure Compression in Clathrates of Dianin's Compound'. Together they form a unique fingerprint.

Cite this