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Quasi One‐Dimensional Organic Superconductor MDT‐TSF⋅AuI 2 with T c =4.5 K at Ambient Pressure
Author(s) -
Takimiya Kazuo,
Kataoka Yoshiro,
Aso Yoshio,
Otsubo Tetsuo,
Fukuoka Hiroshi,
Yamanaka Shoji
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20010316)40:6<1122::aid-anie11220>3.0.co;2-v
Subject(s) - superconductivity , cationic polymerization , ambient pressure , planar , salt (chemistry) , organic superconductor , crystal structure , crystallography , materials science , condensed matter physics , chemistry , physics , polymer chemistry , thermodynamics , computer science , computer graphics (images)
The radical cationic salt of methylenedithiotetraselenafulvalene (MDT‐TSF), shown in the picture, was formed on its treatment with AuI 2 − . The salt showed a superconducting transition at 4.5 K (onset) at ambient pressure. The crystal structure of the MDT‐TSF cation is completely planar and stacked along its a ‐axis; the calculated overlap integral is five times greater in the intrastack compared to the interstack direction and the material is therefore quasi one‐dimensional.