Issue 34, 2021

A photoluminescent organosuperelastic crystal of 7-amino-4-methylcoumarin

Abstract

A unique mechanical property of superelasticity is observed not only in so-called shape-memory alloys but also in molecular crystals. In contrast, superelasticity can coexist with various attractive functions derived from molecules in the latter. Herein we demonstrate a photoluminescent organosuperelastic crystal of a pure organic compound: 7-amino-4-methylcoumarin. UV light irradiation causes a negligible effect on a stress–strain curve with a typical superelastic hysteresis loop in the crystal. The emission color of yellow-green is visually unchanged during the superelastic deformation because of the twinning nature. Superelasticity coexisting with photoluminescence properties is unprecedented in the conventional SMAs and indicates promising practical applications of molecular crystals as the next generation superelastic materials.

Graphical abstract: A photoluminescent organosuperelastic crystal of 7-amino-4-methylcoumarin

Supplementary files

Article information

Article type
Paper
Submitted
17 мар 2021
Accepted
04 апр 2021
First published
06 апр 2021

CrystEngComm, 2021,23, 5801-5804

A photoluminescent organosuperelastic crystal of 7-amino-4-methylcoumarin

T. Sasaki, S. Ranjan and S. Takamizawa, CrystEngComm, 2021, 23, 5801 DOI: 10.1039/D1CE00359C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements