A new pseudopolymorph of hexakis(4-cyanophenyl)benzene.
The title compound (systematic name: benzene-4,4',4'',4''',4'''',4'''''-hexaylhexabenzonitrile dichloromethane disolvate), C48H24N6.2CH2Cl2, crystallizes as an inclusion compound during the slow diffusion of methanol into a solution of hexakis(4-cyanophenyl)benzene in CH2Cl2. The hexakis(4-cyanophenyl)benzene molecule lies on an axis of twofold rotation in the space group Pbcn. Weak C-H...N interactions between hexakis(4-cyanophenyl)benzene molecules define an open network with space for including guests. The resulting structure is a new pseudopolymorph of hexakis(4-cyanophenyl)benzene. The eight known pseudopolymorphs have few shared architectural features, in part because none of the intermolecular interactions that are present plays a dominant role or forces neighboring molecules to assume particular relative orientations.
Gagnon
Eric
E
Département de Chimie, Université de Montréal, Montréal, Québec, Canada H3C 3J7.
Maly
Kenneth E
KE
Maris
Thierry
T
Wuest
James D
JD