title: Self-organization of spheroidal molecular assemblies in polar solvents
abstract: [reaction: see text] We report a number of 1:1 noncovalent complexes composed of a symmetrical trisphosphonate and various symmetrical trisammonium or trisamidinium compounds. The spheroidal complexes show high thermodynamic stability, with association constants Ka reaching 10(6) M(-1) in methanol and in some cases even exceeding 10(3) M(-1) in water. The observed Ka values correlate well with the different degree of preorganization of the complexation partners.
authors.affiliation: Institut fur Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universitat Dusseldorf, Germany.
authors.initials: T
authors.lastname: Grawe
authors.initials: T
authors.lastname: Schrader
authors.initials: M
authors.lastname: Gurrath
authors.initials: A
authors.lastname: Kraft
authors.initials: F
authors.lastname: Osterod