A role of intermolecular interaction modulating thermal diffusivity in organosuperelastic and organoferroelastic cocrystals

Ranjan, Subham; Morioka, Ryota; Ryu, Meguya; Morikawa, Junko; Takamizawa, Satoshi

doi:10.1039/d3sc03155a

Cited by 1 publication

(1 citation statement)

References 55 publications

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“…Upon removing the force, the crystal deformation was immediately restored, demonstrating apparent superelastic properties (Figure 2 and Video S1). 61 Conversely, when pressure was exerted on the wider plane ((001) face) of the crystal, it immediately fractured, showing unidirectional superelastic properties (Video S2). Furthermore, several deformation tests were conducted on the new crystal, revealing that even after multiple deformations, no obvious fracture phenomenon occurred, indicating excellent superelastic properties (Video S3).…”

Section: Mechanical Propertymentioning

confidence: 99%

Superelastic and Photomechanical Behavior of Acylhydrazone Derivative Crystals

Peng,

Yang,

Zhao

et al. 2024

Crystal Growth & Design

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The discovery of superelastic organic crystals capable of phototwisting and photobending represents a significant advance in the field of light-responsive materials. This research focused on the synthesis and characterization of crystals derived from trifluoromethyl-substituted acylhydrazone derivatives, known as TBMP. These crystals exhibited remarkable superelasticity when subjected to mechanical forces along their (010) crystallographic plane while showing a tendency to fracture along the (001) plane. Single-crystal analysis revealed that hydrogen bonds, especially C–H···F, C–H···O, and C–H···N interactions, are crucial in providing the crystals with superelastic properties. In addition, reversible E ↔ Z isomerization of TBMP molecules occurred under UV irradiation and heating, resulting in photomechanical (twisting or bending) and thermal recovery behavior of the crystals. Due to their exceptional properties, these crystals possess significant potential for application in robotic arm technology.

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Section: Mechanical Propertymentioning

confidence: 99%