A Multidirectional Superelastic Organic Crystal by Versatile Ferroelastical Manipulation

Mechanical twinning changes atomic, molecular, and crystal orientations along with directions of the anisotropic properties of the crystalline materials while maintaining single crystallinity in each domain. However, such deformability has been less studied in brittle organic crystals despite their...

Full description

Saved in:
Bibliographic Details
Published in:Angewandte Chemie International Edition 2020-03, Vol.59 (11), p.4340-4343
Main Authors: Sasaki, Toshiyuki, Sakamoto, Shunichi, Takasaki, Yuichi, Takamizawa, Satoshi
Format: Article
Language:English
Subjects:
Adaptability
Anisotropy
crystal engineering
Crystal structure
Crystallinity
Crystals
Deformability
Domains
Ferroelasticity
Formability
hydrogen bonds
Mechanical twinning
Organic crystals
Recoverability
Robotics
Single crystals
Superelasticity
twinning deformation
Urea
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Mechanical twinning changes atomic, molecular, and crystal orientations along with directions of the anisotropic properties of the crystalline materials while maintaining single crystallinity in each domain. However, such deformability has been less studied in brittle organic crystals despite their remarkable anisotropic functions. Herein we demonstrate a direction‐dependent mechanical twinning that shows superelasticity in one direction and ferroelasticity in two other directions in a single crystal of 1,3‐bis(4‐methoxyphenyl)urea. The crystal can undergo stepwise twinning and ferroelastically forms various shapes with multiple domains oriented in different directions, thereby affording a crystal that shows superelasticity in multiple directions. This adaptability and shape recoverability in a ferroelastic and superelastic single crystal under ambient conditions are of great importance in future applications of organic crystals as mechanical materials, such as in soft robotics. Bend into shape: A single crystal of 1,3‐bis(4‐methoxyphenyl)urea has been shown to demonstrate superelasticity (SE) in one direction and ferroelasticity (FE) in two other directions as a result of mechanical twinning. The crystal underwent stepwise twinning and ferroelastically formed various shapes with multiple domains oriented in different directions, which resulted in the crystal showing superelasticity in multiple directions.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201914954