Issue 34, 2021

Chlorinated diketopyrrolopyrrole dye exhibits a three-step polymorphic transition with thermosalient effects

Abstract

A tetramorphic system was discovered in a diketopyrrolopyrrole dye (3,6-bis(4-chlorophenyl)-2-propyl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione), with thermosalient effects during thermal phase transitions. Two polymorphs, the red and orange forms, were obtained using liquid–liquid and liquid–gas diffusion. The other two polymorphs, the vermilion and deep red forms, were obtained by a thermal phase transition from the red and orange forms, respectively. The orange form was also prepared by a thermal phase transition from the vermilion form. Crystallinity was maintained during these thermal phase transitions. The thermosalient effect was also observed during each phase transition, with crystal deformation as the major observed effect. The molecular and crystal structures of the red, orange, and vermilion forms were analysed in terms of structural similarity and the intermolecular interactions.

Graphical abstract: Chlorinated diketopyrrolopyrrole dye exhibits a three-step polymorphic transition with thermosalient effects

Supplementary files

Article information

Article type
Paper
Submitted
05 Сәу. 2021
Accepted
04 Мау. 2021
First published
05 Мау. 2021

CrystEngComm, 2021,23, 5882-5890

Chlorinated diketopyrrolopyrrole dye exhibits a three-step polymorphic transition with thermosalient effects

Y. Kikuchi and S. Matsumoto, CrystEngComm, 2021, 23, 5882 DOI: 10.1039/D1CE00454A

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