Abstract
The L- (D-) alanine adsorption by carbon nanotubes is considered on the basis of the cluster adsorption model [1] and by the DFT quantum chemistry method. It is shown that the L- and D- alanine are fixed on the nanotube in the form of monomers and various sorbate clusters. It is revealed that different positions of the L / D alanine monomers on the CNT surface lead to significant differences in the structure of enantiomers clusters on the surface of the chiral sorbent. This explains the difference of the CNTs affinity to the enantiomers and the promising of the CNTs for applications in technologies of the chirally pure substances preparation. The work expands the theory of three-point interaction used to interpret chiral interactions and provides a new understanding of the mechanism of chiral separation.
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