title: Rubidium bis(trifluoromethanesulfonyl)imidate dioxane disolvate.
abstract: The bis(trifluoromethanesulfonyl)imidate anion crystallizes with Rb as the title dioxane 1:2 solvate, Rb(+).CF(3)SO(2)NSO(2)CF(3)(-).2C(4)H(8)O(2), with the anion in a transoid conformation, as opposed to the cisoid form typically seen when there are significant cation-anion interactions. The Rb(I) cation is eight-coordinate, interacting with one anion in a chelating fashion and with two other anions through the remaining sulfonyl O atoms. The latter interactions link ion pairs through the formation of Rb(2)O(2) dimers about inversion centers at (0, 1/2, 0) and (1/2, 1/2, 0), forming extended columns which run parallel to the a axis of the unit cell. Rb-dioxane bridges crosslink these salt columns in the (010), (001) and (011) directions, resulting in a three-dimensional network solid. One dioxane solvent molecule is disordered over two half-occupancy sites.
authors.affiliation: Clemson University, Chemistry Department, H.L. Hunter Research Laboratories, Clemson, SC 29634-0973, USA.
authors.forename: Lixin
authors.initials: L
authors.lastname: Xue
authors.forename: Clifford W
authors.initials: CW
authors.lastname: Padgett
authors.forename: Darryl D
authors.initials: DD
authors.lastname: DesMarteau
authors.forename: William T
authors.initials: WT
authors.lastname: Pennington