Synthesis and properties of conductive radical cation salts of MDT-TSF (methylenedithiotetraselenafulvalene)

Kazuo Takimiya; Y. Kataoka; M. Kodani; Y. Aso; T. Otsubo

doi:10.1016/S0379-6779(02)00382-X

Synthesis and properties of conductive radical cation salts of MDT-TSF (methylenedithiotetraselenafulvalene)

Kazuo Takimiya, Y. Kataoka, M. Kodani, Y. Aso, T. Otsubo

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

Electrocrystallizaion of MDT-TSF (methylenedithiotetraselenafulvalene) in the presence of (n-Bu₄N)AuI₂, (n-Bu₄N)PF₆, or a mixture of Cu(SCN), KSCN, and 18-crown-6-ether as a supporting electrolyte gave (MDT-TSF)-X salts (X = AuI₂, PF₆, or Cu(NCS)₂). X-ray structural analyses revealed that the salts adopt various types of crystal structures depending on the counter anion involved; the AuI₂ salt takes a characteristic uniform stacking structure, the PF₆ salt θ-type, and the Cu(NCS)₂ salt κ-type structure. Regardless of the structure type, all the salts are highly conductive at room temperature (≥10²S cm^-1) and retain metallic down to low temperature. Of them, the AuI₂ salt having a high conductivity of 2000 S cm^-1 at room temperature showed a superconducting transition at 4.5K.

Original language	English
Pages (from-to)	185-187
Number of pages	3
Journal	Synthetic Metals
Volume	133-134
DOIs	https://doi.org/10.1016/S0379-6779(02)00382-X
Publication status	Published - 2003 Mar 13
Externally published	Yes
Event	ISCOM 2001 - Rusutsu, Hokkaido, Japan Duration: 2001 Sep 10 → 2001 Sep 14

Keywords

Electrocrystallization
Radical cation salt
Superconductor
Tetraselenafulvalene

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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@article{1da2b366685e48169097c7db20878243,

title = "Synthesis and properties of conductive radical cation salts of MDT-TSF (methylenedithiotetraselenafulvalene)",

abstract = "Electrocrystallizaion of MDT-TSF (methylenedithiotetraselenafulvalene) in the presence of (n-Bu4N)AuI2, (n-Bu4N)PF6, or a mixture of Cu(SCN), KSCN, and 18-crown-6-ether as a supporting electrolyte gave (MDT-TSF)-X salts (X = AuI2, PF6, or Cu(NCS)2). X-ray structural analyses revealed that the salts adopt various types of crystal structures depending on the counter anion involved; the AuI2 salt takes a characteristic uniform stacking structure, the PF6 salt θ-type, and the Cu(NCS)2 salt κ-type structure. Regardless of the structure type, all the salts are highly conductive at room temperature (≥102S cm-1) and retain metallic down to low temperature. Of them, the AuI2 salt having a high conductivity of 2000 S cm-1 at room temperature showed a superconducting transition at 4.5K.",

keywords = "Electrocrystallization, Radical cation salt, Superconductor, Tetraselenafulvalene",

author = "Kazuo Takimiya and Y. Kataoka and M. Kodani and Y. Aso and T. Otsubo",

year = "2003",

month = mar,

day = "13",

doi = "10.1016/S0379-6779(02)00382-X",

language = "English",

volume = "133-134",

pages = "185--187",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier BV",

note = "ISCOM 2001 ; Conference date: 10-09-2001 Through 14-09-2001",

}

TY - JOUR

T1 - Synthesis and properties of conductive radical cation salts of MDT-TSF (methylenedithiotetraselenafulvalene)

AU - Takimiya, Kazuo

AU - Kataoka, Y.

AU - Kodani, M.

AU - Aso, Y.

AU - Otsubo, T.

PY - 2003/3/13

Y1 - 2003/3/13

N2 - Electrocrystallizaion of MDT-TSF (methylenedithiotetraselenafulvalene) in the presence of (n-Bu4N)AuI2, (n-Bu4N)PF6, or a mixture of Cu(SCN), KSCN, and 18-crown-6-ether as a supporting electrolyte gave (MDT-TSF)-X salts (X = AuI2, PF6, or Cu(NCS)2). X-ray structural analyses revealed that the salts adopt various types of crystal structures depending on the counter anion involved; the AuI2 salt takes a characteristic uniform stacking structure, the PF6 salt θ-type, and the Cu(NCS)2 salt κ-type structure. Regardless of the structure type, all the salts are highly conductive at room temperature (≥102S cm-1) and retain metallic down to low temperature. Of them, the AuI2 salt having a high conductivity of 2000 S cm-1 at room temperature showed a superconducting transition at 4.5K.

AB - Electrocrystallizaion of MDT-TSF (methylenedithiotetraselenafulvalene) in the presence of (n-Bu4N)AuI2, (n-Bu4N)PF6, or a mixture of Cu(SCN), KSCN, and 18-crown-6-ether as a supporting electrolyte gave (MDT-TSF)-X salts (X = AuI2, PF6, or Cu(NCS)2). X-ray structural analyses revealed that the salts adopt various types of crystal structures depending on the counter anion involved; the AuI2 salt takes a characteristic uniform stacking structure, the PF6 salt θ-type, and the Cu(NCS)2 salt κ-type structure. Regardless of the structure type, all the salts are highly conductive at room temperature (≥102S cm-1) and retain metallic down to low temperature. Of them, the AuI2 salt having a high conductivity of 2000 S cm-1 at room temperature showed a superconducting transition at 4.5K.

KW - Electrocrystallization

KW - Radical cation salt

KW - Superconductor

KW - Tetraselenafulvalene

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U2 - 10.1016/S0379-6779(02)00382-X

DO - 10.1016/S0379-6779(02)00382-X

M3 - Conference article

AN - SCOPUS:0037435346

VL - 133-134

SP - 185

EP - 187

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

T2 - ISCOM 2001

Y2 - 10 September 2001 through 14 September 2001

ER -