Abstract
Almost equal molecular sizes of diiodoacetylene (C2I2) and the [Br3]− anion result in isomorphic neutral cocrystal (DMFc–C2I2) and [DMFc]+Br3− salt. This isomorphic pair of neutral and ionic crystals provides a unique example for the analysis of different types of bonding resulting in isotypic solid-state structures. Their energy frameworks visualize the obvious difference between their energetic structures: the lattice of DMFc–C2I2 is built upon the chains stabilized by I···(η5-C5Me5) halogen bonds; at the same time, [DMFc]+Br3− consists of electrostatically assembled layers associated by Br···π(Cp*) XBs interactions.
Original language | English |
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Pages (from-to) | 58-61 |
Number of pages | 4 |
Journal | Mendeleev Communications |
Volume | 31 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jan 2021 |
Externally published | Yes |
Keywords
- charge-transfer complexes
- cocrystals
- energy framework
- ferrocene
- ferrocenium
- ferrocenyl
- halogen bonding
- intermolecular interactions
- iodoacetylene
- polybromides
- polyiodides
- self-assembly
- supramolecular
ASJC Scopus subject areas
- General Chemistry