Semiconducting spin-crossover cobalt (II) compound with non-integer charge distribution among TCNQ radicals

Jia Ye Zhang, Li Jie Su, Qi Jie Guo, Jun Tao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

A cobalt(II) compound, [CoII(terpy)2](TCNQ)4·3DMF·0.5H2O (1; terpy = 2,2′;6′,2″-terpyridine, TCNQ = 7,7′,8,8′-tetracyanoquinodimethane), was found to show incomplete spin-crossover properties in the cobalt(II) complex and semiconducting properties in the quasi one-dimensional packed TCNQ[rad]δ − (0 < δ < 1) radical anions. Single-crystal structures characterized at different temperatures demonstrated non-integer charge distribution among TCNQ radicals. Moreover, electric conductivity measurements revealed that 1 act as semiconductor at 300 K (3.3 × 10− 4 S cm− 1). The coexistence of spin crossover and electric conductivity in one system will pave the way to study the interactions of such different properties and for the implementation of multifunctional materials.

Original languageEnglish
Pages (from-to)39-43
Number of pages5
JournalInorganic Chemistry Communications
Volume82
DOIs
Publication statusPublished - Aug 2017

Keywords

  • Semiconductor
  • Spin-crossover

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