Self-assembly of conducting cocrystals: Via iodine⋯π(Cp) interactions

Yury V. Torubaev, Konstantin A. Lyssenko, Petro Y. Barzilovich, George A. Saratov, Mobin M. Shaikh, Ajeet Singh, Pradeep Mathur

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Conducting crystals of alternating ferrocene and diiodoacetylene units assembled into supramolecular 1-D chains via I⋯π(Cp) halogen bonds were prepared and structurally characterized. Their structure and conductivity were compared with the ferrocene cocrystals with phenyliodoacetylene (C6H5C2I) and 1,4-di(ethynyliodo)phenylene. Electrical conductivity measurements of the ferrocene-based cocrystals revealed comparatively high electron-hole type conductivity in the ferrocene (FcH)-diiodoacetylene (C2I2) pair, a 3-order decrease in combination with the 1,4-di(ethynyliodo)phenylene linker, and it is virtually extinguished with the monotopic 1,2-phenyliodoacetylene. The increased electric conductivity of compound 1 is rationalized in terms of a weak charge transfer through the I⋯πCp halogen bonds in the [Cp-Fe-Cp⋯I-CC-I⋯]n polymeric chains.

Original languageEnglish
Pages (from-to)5114-5121
Number of pages8
JournalCrystEngComm
Volume19
Issue number34
DOIs
StatePublished - 1 Jan 2017
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics

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