A stable metallic state of (TTPCOO)2NH4 with a mobile dopant

Takeshi Terauchi; Satoshi Sumi; Yuka Kobayashi; Toshikazu Nakamura; Ko Furukawa; Yohji Misaki

doi:10.1039/C4CC00678J

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A stable metallic state of (TTPCOO)₂NH₄ with a mobile dopant†

Takeshi Terauchi,^a Satoshi Sumi,^a Yuka Kobayashi,*^a Toshikazu Nakamura,^b Ko Furukawa ‡^b and Yohji Misaki^c

Author affiliations

* Corresponding authors

^a Polymer Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, 305-0047 Japan
E-mail: kobayashi.yuka@nims.go.jp
Tel: +81-29-859-2154

^b Institute for Molecular Science (IMS), Okazaki, Aichi 444-8585, Japan

^c Department of Applied Chemistry, Graduate School of Science and Engineering, Ehime University, Matsuyama, Ehime 790-8577, Japan

Abstract

Ammonium tetrathiapentalene carboxylate [(TTPCOO)₂NH₄] was prepared via protonic defect-induction doping without electrochemical oxidation. The high electric conductivity of 13 S cm⁻¹ and Pauli paramagnetic-like behavior of magnetic susceptibility in a wide temperature range exhibit a melting of the charge degrees of freedom induced by a mobile dopant in a salt bridge. Solid-state ¹H NMR strongly indicates a stable metallic state of this compound down to 4 K.

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Article information

DOI: https://doi.org/10.1039/C4CC00678J
Article type: Communication
Submitted: 27 Jan 2014
Accepted: 13 Mar 2014
First published: 27 Mar 2014

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Chem. Commun., 2014,50, 7111-7113

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A stable metallic state of (TTPCOO)₂NH₄ with a mobile dopant

T. Terauchi, S. Sumi, Y. Kobayashi, T. Nakamura, K. Furukawa and Y. Misaki, Chem. Commun., 2014, 50, 7111 DOI: 10.1039/C4CC00678J

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Chemical Communications