Synthesis, Structures, and Properties of a Series of Double-Bridged Tetrathiafulvalenophanes as Novel Electron Donors for Conductive Radical Cation Salts†

2000 ◽  
Vol 12 (8) ◽  
pp. 2196-2204 ◽  
Author(s):  
Kazuo Takimiya ◽  
Akinobu Oharuda ◽  
Yoshio Aso ◽  
Fumio Ogura ◽  
Tetsuo Otsubo
Keyword(s):  
Radical Cation ◽  
Electron Donors ◽  
Structures And Properties ◽  
Radical Cation Salts

Synthesis, crystal structures and properties of new radical cation salts based on some tetrathiapentalene derivatives with halogenomercurate anions

2006 ◽  
Vol 156 (16-17) ◽  
pp. 991-998 ◽  
Author(s):  
E.I. Zhilyaeva ◽  
A.M. Flakina ◽  
R.N. Lyubovskaya ◽  
I.V. Fedyanin ◽  
K.A. Lyssenko ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Radical Cation ◽  
Structures And Properties ◽  
Radical Cation Salts

scholarly journals First Molecular Superconductor with the Tris(Oxalato)Aluminate Anion, β″-(BEDT-TTF)4(H3O)Al(C2O4)3·C6H5Br, and Isostructural Tris(Oxalato)Cobaltate and Tris(Oxalato)Ruthenate Radical Cation Salts

2021 ◽  
Vol 7 (7) ◽  
pp. 90
Author(s):  
Toby James Blundell ◽  
Michael Brannan ◽  
Joey Mburu-Newman ◽  
Hiroki Akutsu ◽  
Yasuhiro Nakazawa ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Metal Ions ◽  
Radical Cation ◽  
Research Group ◽  
Subsequent Research ◽  
Β Phase ◽  
Structures And Properties ◽  
Paramagnetic Metal ◽  
Radical Cation Salts ◽  
Superconducting Tc

Peter Day’s research group reported the first molecular superconductor containing paramagnetic metal ions in 1995, β″-(BEDT-TTF)4(H3O)Fe(C2O4)3·C6H5CN. Subsequent research has produced a multitude of BEDT-TTF-tris(oxalato)metallate salts with a variety of structures and properties, including 32 superconductors to date. We present here the synthesis, crystal structure, and conducting properties of the newest additions to the Day series including the first superconductor incorporating the diamagnetic tris(oxalato)aluminate anion, β″-(BEDT-TTF)4(H3O)Al(C2O4)3·C6H5Br, which has a superconducting Tc of ~2.5 K. β″-(BEDT-TTF)4(H3O)Co(C2O4)3·C6H5Br represents the first example of a β″ phase for the tris(oxalato)cobaltate anion, but this salt does not show superconductivity.

Radical Cation Salts of Cyanobenzene-Ethylenedithio-TTF Electron Donors with Halide (Cu and Hg) Binuclear Anions

2019 ◽  
Vol 2019 (14) ◽  
pp. 1875-1883 ◽  
Author(s):  
Gonçalo Lopes ◽  
Ana Cristina Gonçalves ◽  
Vasco da Gama ◽  
Dulce Simão ◽  
Isabel Cordeiro Santos ◽  
...  
Keyword(s):  
Radical Cation ◽  
Electron Donors ◽  
Radical Cation Salts

scholarly journals New Radical Cation Salts Based on BDH-TTP Donor: Two Stable Molecular Metals with a Magnetic [ReF6]2− Anion and a Semiconductor with a [ReO4]− Anion

2021 ◽  
Vol 7 (4) ◽  
pp. 54
Author(s):  
Nataliya D. Kushch ◽  
Gennady V. Shilov ◽  
Lev I. Buravov ◽  
Eduard B. Yagubskii ◽  
Vladimir N. Zverev ◽  
...  
Keyword(s):  
Radical Cation ◽  
Low Temperatures ◽  
Ac Susceptibility ◽  
Slow Relaxation ◽  
Organic Radical ◽  
Inorganic Anion ◽  
Distinctive Features ◽  
Metallic Character ◽  
Radical Cation Salts ◽  
Partial Population

Three radical cation salts of BDH-TTP with the paramagnetic [ReF6]2− and diamagnetic [ReO4]− anions have been synthesized: κ-(BDH-TTP)4ReF6 (1), κ-(BDH-TTP)4ReF6·4.8H2O (2) and pseudo-κ″-(BDH-TTP)3(ReO4)2 (3). The crystal and band structures, as well as the conducting properties of the salts, have been studied. The structures of the three salts are layered and characterized by alternating κ-(1, 2) and κ″-(3) type organic radical cation layers with inorganic anion sheets. Similar to other κ-salts, the conducting layers in the crystals of 1 and 2 are formed by BDH-TTP dimers. The partial population of positions of Re atoms and disorder in the anionic layers of 1–3 are their distinctive features. Compounds 1 and 2 show the metallic character of conductivity down to low temperatures, while 3 is a semiconductor. The ac susceptibility of crystals 1 was investigated in order to test the possible slow relaxation of magnetization associated with the [ReF6]2− anion.

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