Spontaneous Resolutions in Halogen Bonded Fluorinated Networks |
Acta Crystallogr. 2005, A61, C11 |
H. Neukirch, P. Metrangolo, T. Pilati, G. Resnati |
Keywords: halogen bonding, chiral resolution, molecular cocrystals |
Halogen bonding is an efficient tool for self-assembling haloperfluorocarbons
(PFC) and hydrocarbons (HC) [1]. Its particular
ability to control spontaneous resolution in hybrid PFC-HC systems
has been discovered only recently [2]. Up to now we observed
spontaneous resolutions in four cases affording chiral cocrystals,
space group P212121. Three of them involved long-chain iodo-PFC?s
(C8-C10) with either QUATS or N,N,N?,N?-tetramethyl-pphenylendiamine
as bases. Their different features with regard to the
segregation behaviour and the conformation of the PFC chains will be
outlined. The X-ray structure of a chiral alkali halide complex 1
(Figure) involving a tripodand will also be presented.
|