Hydrogen bonded dimers of triurea derivatives of triphenylmethanes.
Tri-(2-alkoxy-5-ureido-phenyl)methanes represent a novel self-complementary motif forming hydrogen bonded homo- and heterodimers in nonpolar, aprotic solvents as evidenced by 1H NMR and ESI-mass spectra and by the formation of heterodimers. MD simulations suggest the formation of hydrogen bonds of different strength in agreement with NMR data. The dimerization does not interfere with that of tetraurea calix[4]arenes. A combination of both motifs may be used therefore to build up larger structures via self-assembly processes. [structure: see text]
Rudzevich
Yuliya
Y
Abteilung Lehramt Chemie, Fachbereich Chemie und Pharmazie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55099 Mainz, Germany.
Rudzevich
Valentyn
V
Schollmeyer
Dieter
D
Thondorf
Iris
I
Böhmer
Volker
V