A New Mercury-based Cation Radical Salt: α-(BEDT-TTF)<sub>2</sub>Hg(SeCN)<sub>2</sub>Cl

ORAL

Abstract

BEDT-TTF [BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene, henceforth referred to as ET] cation radical salts continue to serve as important physical representations of various theoretical quantum systems. The arrangement of ET radical cations in these materials have dramatic effects on their physical properties. Here we report the synthesis of the new α-(ET)2Hg(SeCN)2Cl salt. Single crystals, crystallizing in the monoclinic space group P21/n, were prepared through the use of electrocrystallization.1 The two dimensional crystal structure is characterized by layers of ET radical cations separated by dimerized Hg(SeCN)2Cl- anions. The synthesis, structure, and magnetization, heat capacity, electron-spin-resonance, and Raman measurements are reported.
1. P. Batail, K. Boubekeur, M. Fourmigué and J.-C. P. Gabriel, Chem. Mater., 1998, 10, 3005–3015.

*J.A.S. acknowledges support from the Independent Research/Development program while serving at the NSF. Work carried out at the NHMFL was supported by the NSF under grant DMR-1644779 and the State of Florida. A.H., L.D. and T.S. acknowledge funding from the NSF under grant DMR-1534818 and DMR-1849539. Use of the APS, a DOE Office of Science User Facility at ANL, was supported under Contract No. DE-AC02-06CH11357

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Presenters

  • Alyssa Henderson

    • Natl High Magnetic Field Lab
    • Florida State University

Authors

  • Alyssa Henderson

    • Natl High Magnetic Field Lab
    • Florida State University

  • Kaya Wei

    • Florida State Univ
    • Natl High Magnetic Field Lab
    • National High Magnetic Field Laboratory, Florida State University
    • National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USA.

  • Johan Van Tol

    • Natl High Magnetic Field Lab
    • National High Magnetic Field Lab, Florida State Univ

  • Rachael Richardson

    • Florida A&M University
    • Natl High Magnetic Field Lab

  • Komalavalli Thirunavukkuarasu

    • National High Magnetic Field Laboratory, Tallahassee, FL
    • Florida A&M University
    • Natl High Magnetic Field Lab

  • Theo Siegrist

    • Florida State Univ
    • National High Magnetic Field Laboratory
    • Natl High Magnetic Field Lab
    • Chemical and Biomedical Engineering, FAMU-FSU College of Engineering
    • National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USA.; Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering,

  • John A Schlueter

    • National Science Foundation
    • Division of Materials Research, National Science Foundation
    • Division of Material Research, National Science Foundation