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 language | English |
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Pages (from-to) | 5114-5121 |
Number of pages | 8 |
Journal | CrystEngComm |
Volume | 19 |
Issue number | 34 |
DOIs | |
State | Published - 1 Jan 2017 |
Externally published | Yes |
ASJC Scopus subject areas
- General Chemistry
- General Materials Science
- Condensed Matter Physics