An organic superconductor, (TEA)(HEDO-TTF-dc)·2(HCO), coupled with strong hydrogen-bonding interactions

A new organic superconductor (TEA)(HEDO-TTF-dc) 2 ·2(H 2 C 2 O 4 ) (H 2 EDO-TTF-dc = ethylenedioxy-tetrathiafulvalene dicarboxylic acids) with an onset T C of 4.0 K, was successfully obtained using oxalic acid and HEDO-TTF-dc anion donor. The crystal structure analysis indicated that strong π-π over...

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Published in:Chemical communications (Cambridge, England) England), 2023-04, Vol.59 (28), p.4162-4165
Main Authors: Morimachi, Yuto, Urai, Mizuki, Nakajima, Ryota, Kamebuchi, Hajime, Miyagawa, Kazuya, Kanoda, Kazushi, Zhou, Biao
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Summary:A new organic superconductor (TEA)(HEDO-TTF-dc) 2 ·2(H 2 C 2 O 4 ) (H 2 EDO-TTF-dc = ethylenedioxy-tetrathiafulvalene dicarboxylic acids) with an onset T C of 4.0 K, was successfully obtained using oxalic acid and HEDO-TTF-dc anion donor. The crystal structure analysis indicated that strong π-π overlaps and very strong intra- and inter-molecular hydrogen-bonding interactions exist between the HEDO-TTF-dc anion donors and oxalic acid molecules. Very strong intra- and inter-molecular hydrogen-bonding interactions coexist with strong π-π overlaps in a pure organic superconductor (TEA)(HEDO-TTF-dc) 2 ·2(H 2 C 2 O 4 ).
ISSN:1359-7345
1364-548X
DOI:10.1039/d3cc00080j