We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Controlling Thermal Expansion in Supramolecular Halogen‐Bonded Mixed Cocrystals through Synthetic Feed and Dynamic Motion.
- Authors
Juneja, Navkiran; Shapiro, Nicole M.; Unruh, Daniel K.; Bosch, Eric; Groeneman, Ryan H.; Hutchins, Kristin M.
- Abstract
Control over thermal expansion (TE) behaviors in solid materials is often accomplished by modifying the molecules or intermolecular interactions within the solid. Here, we use a mixed cocrystal approach and incorporate molecules with similar chemical structures, but distinct functionalities. Development of mixed cocrystals is at a nascent stage, and here we describe the first mixed cocrystals sustained by one‐dimensional halogen bonds. Within each mixed cocrystal, the halogen‐bond donor is fixed, while the halogen‐bond acceptor site contains two molecules in a variable ratio. X‐ray diffraction demonstrates isostructurality across the series, and SEM‐EDS shows equal distribution of heavy atoms and similar atomic compositions across all mixed cocrystals. The acceptor molecules differ in their ability to undergo dynamic motion in the solid state. The synthetic equivalents of motion capable and incapable molecules were systematically varied to yield direct tunabililty in TE behavior.
- Subjects
THERMAL expansion; INTERMOLECULAR interactions; CHEMICAL structure; X-ray diffraction
- Publication
Angewandte Chemie, 2022, Vol 134, Issue 26, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202202708