Plastic- and liquid-crystalline architectures from dendritic receptor molecules.
Host molecules with U-shaped receptor cavities have been derivatized at their convex side with two n-hydrocarbon tails (1), two first-generation (2), and two second-generation (3) monodendritic hydrocarbon tails. Although hosts 1 and 2 display plastic-crystalline behavior, evidence suggests that host 3 forms a cubic liquid-crystalline phase. In this phase, molecules of 3 are arranged in spherical supramacromolecular assemblies, in which the receptor cavities are situated in the core and the hydrocarbon tails at the periphery. The 1:1 host-guest complex of 3 with methyl 3,5dihydroxybenzoate forms a similar liquid-crystalline phase, with the guest included in the core of the assemblies.
Elemans
Johannes A A W
JA
Department of Organic Chemistry, Nijmegen Science Research Institute of Materials, University of Nijmegen, Toernooiveld, 6525 ED Nijmegen, The Netherlands. jelemans@sci.kun.nl
Boerakker
Mark J
MJ
Holder
Simon J
SJ
Rowan
Alan E
AE
Cho
Wook-Dong
WD
Percec
Virgil
V
Nolte
Roeland J M
RJ
D003460:Crystallization; D003712:Dendrites / Q000737:chemistry* / Q000378:metabolism*; D005707:Gallic Acid / Q000737:chemistry; D006838:Hydrocarbons / Q000737:chemistry; D062385:Hydroxybenzoates / Q000737:chemistry; D046911:Macromolecular Substances; D008956:Models, Chemical; D008958:Models, Molecular; D010969:Plastics / Q000737:chemistry*; D013696:Temperature; D013816:Thermodynamics
D006838:Hydrocarbons; D062385:Hydroxybenzoates; D046911:Macromolecular Substances; D010969:Plastics; D005707:Gallic Acid