title: Crystallographic view of fluidic structures for room-temperature ionic liquids: 1-butyl-3-methylimidazolium hexafluorophosphate.
abstract: Shock-induced crystallization of the supercooled ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate, C8H15N2+.PF6-, allows for the first time precise X-ray diffraction analysis directly pertinent to the fluid state. This intermediate-chain-length structure shows features of both short- and long-chain analogs. Two types of interplanar distances between imidazolium rings are observed. The anions are located in channels formed by the imidazolium rings and alkyl chains.
authors.affiliation: Department of Chemistry, University of Houston, 4800 Calhoun Drive, Houston, TX 77204, USA.
authors.forename: Sergey M
authors.initials: SM
authors.lastname: Dibrov
authors.forename: Jay K
authors.initials: JK
authors.lastname: Kochi