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Ya. A. Gromova, E. S. Anistratova, T. I. Shabatina, N. B. Rozhmanova, E. N. Shapovalova, O. A. Shpigun
Production
of chiral matrices on the base of hybrid nanosystems silver-thiocholesterol and
study of their properties
Abstract
The new type of chiral matrices was proposed on the base of hybrid
nanosystems silver-thiocholosterol, adsorbed in silica. It was established
that ligand (ThioCholesterol, L) to metal (Silver) mole/mole ratio has no the
significant influence on the size of silver nanoparticles formed in the system:
the main value of silver particles diameter is equal to (2,7±0,4) nm for
the case Ag:L= 1:5, (2,2±0,4) nm - for Ag:L= 1:2 and (2,1±0,6) nm –
for Ag:L= 1:0,5. The chiral matrices obtained possess enantioselectivity in
relation to optical isomers of 2,2´-diamino-1,1´-binaphtol (DABN) and tri-flouoroanthranyl ethanol (TFAE).
We have succeeded to select optical isomers of TFAE by thin layer
chromatography method (α = 1,56).
Key words: hybrid
nanosystems, thiocholesterol, silver nanoparticles,silica gel, chiral matrices, thin layer chromatography
Copyright (C) Chemistry Dept., Moscow State University, 2002
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