Synthesis, Structures, and Electrochemical Properties of Bis‐ and Tetrakis(diphenylphosphino)tetrathiafulvalenes Extended with an Anthraquinoid Spacer

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  • Aya Yoshimura
    Department of Applied Chemistry Graduate School of Science and Engineering Ehime University 3 Bunkyo-cho Matsuyama 790-8577 Japan
  • Keisuke Henmi
    Department of Applied Chemistry Graduate School of Science and Engineering Ehime University 3 Bunkyo-cho Matsuyama 790-8577 Japan
  • Ayaka Handa
    Department of Applied Chemistry Graduate School of Science and Engineering Ehime University 3 Bunkyo-cho Matsuyama 790-8577 Japan
  • Kohei Kagawa
    Department of Applied Chemistry Graduate School of Science and Engineering Ehime University 3 Bunkyo-cho Matsuyama 790-8577 Japan
  • Takashi Shirahata
    Department of Applied Chemistry Graduate School of Science and Engineering Ehime University 3 Bunkyo-cho Matsuyama 790-8577 Japan
  • Yohji Misaki
    Department of Applied Chemistry Graduate School of Science and Engineering Ehime University 3 Bunkyo-cho Matsuyama 790-8577 Japan

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<jats:title>Abstract</jats:title><jats:p>Bis‐ and tetrakis(diphenylphosphino)tetrathiafulvalenes extended with an anthraquinoid spacer were successfully synthesized. X‐ray structure analysis revealed that the phosphorus atoms adopt the typical distorted tetrahedral geometry. Their average C−P−C angles and phosphorus−carbon distances resemble those of diphenylphosphino‐substituted TTF derivatives. The cyclic voltammograms consisted of one pair of irreversible, simultaneous two‐electron transfer waves. A combination of cyclic voltammetry experiments and DFT calculations suggested the coexistence of two different reduction processes depending on the scan rate.</jats:p>

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