Issue 13, 2022

Dielectric response of 1,1-difluorosumanene caused by an in-plane motion

Abstract

We have designed and synthesized a new curved π-conjugated molecule, 1,1-difluorosumanene (1), which possesses two fluorine atoms on the same benzylic carbon of unsubstituted sumanene, producing a large dipole moment along the in-plane direction. Thermal analyses, variable-temperature X-ray diffraction, and IR measurements indicated a 120° in-plane motion of 1 in the stacking columns, which did not cause any phase transition in the crystalline state. Indeed, dielectric measurements on powder and single-crystal forms of 1 showed that both the real (ε1) and imaginary (ε2) parts of the dielectric constant were enhanced above ∼360 K at 1 MHz with a Debye-type dielectric relaxation, confirming that 1 underwent a pendulum fluctuation induced by the external electric field.

Graphical abstract: Dielectric response of 1,1-difluorosumanene caused by an in-plane motion

Supplementary files

Article information

Article type
Research Article
Submitted
17 ፌብሩ 2022
Accepted
08 ኤፕሪ 2022
First published
09 ኤፕሪ 2022

Mater. Chem. Front., 2022,6, 1752-1758

Dielectric response of 1,1-difluorosumanene caused by an in-plane motion

M. Li, J. Wu, K. Sambe, Y. Yakiyama, T. Akutagawa, T. Kajitani, T. Fukushima, K. Matsuda and H. Sakurai, Mater. Chem. Front., 2022, 6, 1752 DOI: 10.1039/D2QM00134A

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