Tracking anharmonic oscillations in the structure of β-1,3-diacetylpyrene

A recently discovered β polymorph of 1,3-diacetylpyrene has turned out to be a prominent negative thermal expansion material, with a linear thermal expansion coefficient of −199 (6) MK−1 at room temperature. Its unique properties can be linked to anharmonic oscillations in the crystal structure that...

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Bibliographic Details
Main Authors: A. Zwolenik, A. Makal
Format: Article
Language:English
Published: International Union of Crystallography 2025-01-01
Series:IUCrJ
Subjects:
Online Access:https://journals.iucr.org/paper?S2052252524010443
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