Thermal Expansion Properties and Mechanochemical Synthesis of Stoichiometric Cocrystals Containing Tetrabromobenzene as a Hydrogen- and Halogen-Bond Donor

Xiaodan Ding, Adam W. Crawford, William P. Derrick, Daniel K. Unruh, Ryan H. Groeneman, Kristin M. Hutchins

Research output: Contribution to journalArticlepeer-review

Abstract

The solution and mechanochemical synthesis of two cocrystals that differ in the stoichiometric ratio of the components (stoichiometric cocrystals) is reported. The components in the stoichiometric cocrystals interact through hydrogen or hydrogen/halogen bonds and differ in π-stacking arrangements. The difference in structure and noncovalent interactions affords dramatically different thermal expansion behaviors in the two cocrystals. At certain molar ratios, the cocrystals are obtained concomitantly; however, by varying the ratios, a single stoichiometric cocrystal is achieved using mechanochemistry.

Original languageEnglish
Pages (from-to)16329-16333
Number of pages5
JournalChemistry - A European Journal
Volume27
Issue number66
DOIs
StatePublished - Nov 25 2021

Keywords

  • crystal engineering
  • hydrogen bonds
  • mechanochemistry
  • stoichiometric cocrystal
  • thermal expansion

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