6533b870fe1ef96bd12cfaf0

RESEARCH PRODUCT

Loose crystals engineered by mismatched halogen bonds in hexachloroethane

Marcin PodsiadłoMaciej BujakAndrzej Katrusiak

subject

Materials scienceIntermolecular force02 engineering and technologyGeneral ChemistryStaggered conformation010402 general chemistry021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciences0104 chemical sciencesCrystalCrystallographysymbols.namesakePhase (matter)symbolsMoleculeGeneral Materials ScienceOrthorhombic crystal systemVan der Waals radius0210 nano-technologyAmbient pressure

description

Distortions of the directional requirements in halogen⋯halogen contacts between hexachloroethane (HCE), C2Cl6, molecules lead to a loose crystal under ambient conditions. Single-crystal X-ray diffraction shows that the orthorhombic HCE phase of space group Pnma, with the molecules in the staggered conformation, extends at least from 85 to 305 K and from 0.1 MPa to 5.42 GPa. At ambient pressure, all intermolecular distances are longer than the sum of van der Waals radii, reached only at the pressure of ca. 1.2 GPa.

10.1039/c7ce01980ghttp://pubs.rsc.org/en/content/articlelanding/2018/ce/c7ce01980g#!divAbstract