Role of the Anion Layer's Polarity in Organic Conductors β″-(BEDT-TTF)_2XC_2H_4SO_3(X = Cl and Br)

Akutsu, Hiroki; Uruichi, Mikio; Imajo, Shusaku; Kindo, Koichi; Nakazawa, Yasuhiro; Turner, S. Scott

doi:https://doi.org/10.1021/acs.jpcc.2c05126

Role of the Anion Layer's Polarity in Organic Conductors β″-(BEDT-TTF)_2XC_2H_4SO_3(X = Cl and Br)

Akutsu, Hiroki; Uruichi, Mikio; Imajo, Shusaku et al.

Journal of Physical Chemistry C, 2022, 126(38), 16529-16538

Number of Access:712（2025-12-10 23:42 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/89425

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Title	Role of the Anion Layer's Polarity in Organic Conductors β″-(BEDT-TTF)_2XC_2H_4SO_3(X = Cl and Br)
Creator	NRID 1000080316033 1000080316033 researchmap permalink read0054913 read0054913 Scopus Author ID 7102483241 7102483241 CreatorName Akutsu, Hiroki
	NRID 1000070390680 1000070390680 CreatorName Uruichi, Mikio
	NRID 1000030825352 1000030825352 CreatorName Imajo, Shusaku
	NRID 1000020205058 1000020205058 CreatorName Kindo, Koichi
	NRID 1000060222163 1000060222163 researchmap permalink thermo102 thermo102 Scopus Author ID 55556980600 55556980600 CreatorName Nakazawa, Yasuhiro
	CreatorName Turner, S. Scott
Description	Hiroki Akutsu, Mikio Uruichi, Shusaku Imajo, Koichi Kindo, Yasuhiro Nakazawa, and Scott S. Turner, Role of the Anion Layer's Polarity in Organic Conductors β″-(BEDT-TTF)_2XC_2H_4SO_3(X = Cl and Br), The Journal of Physical Chemistry C, 126(38), 16529-16538, September 29, 2022, © 2022 American Chemical Society. https://doi.org/10.1021/acs.jpcc.2c05126
Abstract	A two-dimensional (2D) organic conductor β″-(BEDT-TTF)2ClC2H4SO3(1) crystallized in the P21/m and has a polar anion located on the mirror plane, parallel to the 2D BEDT-TTF conducting layer. A temperature-induced phase transition tilts the anion such that a component of its electric dipole becomes perpendicular to the conducting plane. This low-temperature phase β″-β′′-(BEDT-TTF)2ClC2H4SO3(1L) has two crystallographically independent donor layers, A and B, each of which is bordered by the positive or negative side of the anion's dipole (← B → A ← B → A ←). This exposes each donor layer to different effective electric fields and leads to layers of A and B with dissimilar oxidation states. Consequently, the transition can be called the temperature-induced non-doped-to-doped transition. The low-temperature phase (1L) is isomorphous with β″-β′′-(BEDT-TTF)2BrC2H4SO3(2) from room temperature to at least 100 K, suggesting that 2 is also doped and it shows a very broad MI transition at 70 K. Applying only 2 kbar of static pressure sharpens the MI transition, indicating that the tilted anion straightens, and therefore, we suggest that it can be termed a pressure-induced doped-to-non-doped transition.
Publisher	American Chemical Society
Source Title	Journal of Physical Chemistry C
Volume (Issue)	126(38)
Page	16529-16538
Date of Issued	2022-09-29
Language	English
Handle URL	https://hdl.handle.net/11094/89425
PISSN	19327447
eISSN	19327455
NCID	AA12192210
NCID	AA1217589X
Relation.isVersionOf	DOI (Publisher Version) https://doi.org/10.1021/acs.jpcc.2c05126
Access Rights	open access
CopyRight	This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.2c05126.
oaire:version	Accepted Manuscript
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Journal of Physical Chemistry C. 2022, 126(38), p. 16529-16538
DC.title	Role of the Anion Layer's Polarity in Organic Conductors β″-(BEDT-TTF)_2XC_2H_4SO_3(X = Cl and Br)
DC.creator	Akutsu, Hiroki
	Uruichi, Mikio
	Imajo, Shusaku
	Kindo, Koichi
	Nakazawa, Yasuhiro
	Turner, S. Scott
DC.publisher	American Chemical Society
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2022-09-29
DC.identifier	https://doi.org/10.1021/acs.jpcc.2c05126
DC.description	Hiroki Akutsu, Mikio Uruichi, Shusaku Imajo, Koichi Kindo, Yasuhiro Nakazawa, and Scott S. Turner, Role of the Anion Layer's Polarity in Organic Conductors β″-(BEDT-TTF)_2XC_2H_4SO_3(X = Cl and Br), The Journal of Physical Chemistry C, 126(38), 16529-16538, September 29, 2022, © 2022 American Chemical Society. https://doi.org/10.1021/acs.jpcc.2c05126
DCTERMS.abstract	A two-dimensional (2D) organic conductor β″-(BEDT-TTF)2ClC2H4SO3(1) crystallized in the P21/m and has a polar anion located on the mirror plane, parallel to the 2D BEDT-TTF conducting layer. A temperature-induced phase transition tilts the anion such that a component of its electric dipole becomes perpendicular to the conducting plane. This low-temperature phase β″-β′′-(BEDT-TTF)2ClC2H4SO3(1L) has two crystallographically independent donor layers, A and B, each of which is bordered by the positive or negative side of the anion's dipole (← B → A ← B → A ←). This exposes each donor layer to different effective electric fields and leads to layers of A and B with dissimilar oxidation states. Consequently, the transition can be called the temperature-induced non-doped-to-doped transition. The low-temperature phase (1L) is isomorphous with β″-β′′-(BEDT-TTF)2BrC2H4SO3(2) from room temperature to at least 100 K, suggesting that 2 is also doped and it shows a very broad MI transition at 70 K. Applying only 2 kbar of static pressure sharpens the MI transition, indicating that the tilted anion straightens, and therefore, we suggest that it can be termed a pressure-induced doped-to-non-doped transition.
DC.rights	This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.2c05126.
DC.format	89425
citation_title	Role of the Anion Layer's Polarity in Organic Conductors β″-(BEDT-TTF)_2XC_2H_4SO_3(X = Cl and Br)
citation_author	Akutsu, Hiroki
	Uruichi, Mikio
	Imajo, Shusaku
	Kindo, Koichi
	Nakazawa, Yasuhiro
	Turner, S. Scott
citation_publisher	American Chemical Society
citation_language	English
citation_date	2022-09-29
citation_journal_title	Journal of Physical Chemistry C
citation_volume	126
citation_issue	38
citation_firstpage	16529
citation_lastpage	16538
citation_doi	https://doi.org/10.1021/acs.jpcc.2c05126
citation_public_url	https://hdl.handle.net/11094/89425

Role of the Anion Layer's Polarity in Organic Conductors β″-(BEDT-TTF)_2XC_2H_4SO_3(X = Cl and Br)

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