SELF-ASSEMBLY OF HETEROSUPERMOLECULES

TiO2 nanocrystallites are prepared by hydrolysis of titanium tetraisop ropoxide in the presence of N,N'-2,6-pyridinediylbis[undecamide]. The latter stabilizes the resulting semiconductor sol and provides sites a t the surface of a nanocrystallite for selective binding of a uracil d erivative by complementary hydrogen bonding. Addition of 6-(N-tridecyl undecamido)methyluracil results in self-assembly of a heterosupermolec ule subsequently characterized by H-1 NMR and FT-IR spectroscopies.