Crystal structures and dielectric properties of 4,4′-dimethyl-6,6′-dichlorothioindigo (Pigment Red 181)
-
Published:2020-12-24
Issue:1
Volume:77
Page:23-30
-
ISSN:2052-5206
-
Container-title:Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials
-
language:
-
Short-container-title:Acta Crystallogr Sect B
Author:
Sakthidharan C. P.,
Niewa R.,
Zherebtsov D. A.,
Podgornov F. V.,
Matveychuk Y. V.ORCID,
Bartashevich E. V.ORCID,
Nayfert S. A.,
Adonin S. A.,
Gavrilyak M. V.,
Boronin V. A.,
Polozov M. A.,
Karthikeyan S.,
Sarojadevi M.,
Rajakumar K.ORCID,
Prabunathan P.ORCID
Abstract
The structures of the red polymorph (space group P
1) and the black polymorph (space group P21/c) of 4,4′-dimethyl-6,6′-dichlorothioindigo were solved from single-crystal samples. For both polymorphs, the spatial stacking of the flat molecules is driven by π-stacking and noncovalent interactions within the layers. Spectroscopic (UV–vis, IR and photoluminescence) and thermal properties of the red polymorph were investigated experimentally. The bandgap of this polymorph was estimated as 2.08 eV at room temperature. It is demonstrated that the electric conductivity of the red polymorph follows the hopping mechanism.
Funder
Ministry of Science and Higher Education of the Russian Federation
Government of the Russian Federation
Publisher
International Union of Crystallography (IUCr)
Subject
Materials Chemistry,Metals and Alloys,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献