Ambient-pressure molecular superconductor with a superlattice containing layers of tris(oxalato)rhodate enantiomers and 18-crown‑6

Ambient-pressure molecular superconductor with a superlattice containing layers of tris(oxalato)rhodate enantiomers and 18-crown‑6

We report a novel multilayered organic–inorganic hybrid material, β″-(BEDT-TTF)2[(H2O)­(NH4)2Rh­(C2O4)3]·18-crown-6. This is the first molecular superconductor to have a superlattice with layers of both BEDT-TTF and 18-crown-6 and also the first with the anion tris­(oxalato)­rhodate. This is the 2D...

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Veröffentlicht in:Inorganic chemistry 2017-01, Vol.56 (2), p.717-720
Hauptverfasser: Martin, Lee, Morritt, Alexander L, Lopez, Jordan R, Akutsu, Hiroki, Nakazawa, Yasuhiro, Imajo, Shusaku, Ihara, Yoshihiko
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container_end_page 720
container_issue 2
container_start_page 717
container_title Inorganic chemistry
container_volume 56
creator Martin, Lee
Morritt, Alexander L
Lopez, Jordan R
Akutsu, Hiroki
Nakazawa, Yasuhiro
Imajo, Shusaku
Ihara, Yoshihiko
description We report a novel multilayered organic–inorganic hybrid material, β″-(BEDT-TTF)2[(H2O)­(NH4)2Rh­(C2O4)3]·18-crown-6. This is the first molecular superconductor to have a superlattice with layers of both BEDT-TTF and 18-crown-6 and also the first with the anion tris­(oxalato)­rhodate. This is the 2D superconductor with the widest gap between conducting layers, where only a single donor packing motif is observed (β″). The strong 2D nature of this system strongly suggests that the superconducting transition is a Kosterlitz–Thouless transition. A superconducting T c of 2.7 K at ambient pressure was found by transport measurements and 2.5 K by magnetic susceptibility measurements.
doi_str_mv 10.1021/acs.inorgchem.6b02708
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title Ambient-pressure molecular superconductor with a superlattice containing layers of tris(oxalato)rhodate enantiomers and 18-crown‑6
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