title: Superelastic shape recovery of mechanically twinned 3,5-difluorobenzoic acid crystals.
abstract: Generally, superelastic behavior cannot be expected in mechanically twinned crystals because there is essentially no strain on the interface that is a driving force for spontaneous shape recovery. However, we found that single crystals of 3,5-difluorobenzoic acid are superelastic organic crystals under mechanical twinning. The unexpected shape recovery can be explained by molecular distortion on the twinning interface, which suggests a new mechanism for superelasticity in molecular materials.
authors.affiliation: Department of Nanosystem Science; Graduate School of Nanobioscience; Yokohama City University, 22-2 Seto; Kanazawa-ku, Yokohama, Kanagawa 236-0027 (Japan). staka@yokohama-cu.ac.jp.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Takamizawa
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Takasaki
mesh_terms: D019817:Benzoic Acid / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004548:Elasticity; D008968:Molecular Conformation
chemical_list: D019817:Benzoic Acid
keywords: carboxylic acids; crystal engineering; mechanical properties; organosuperelasticity