Artículo
Lattice-gas modeling of enantioselective adsorption by template chiral substrates
Fecha de publicación:
15/07/2004
Editorial:
Elsevier Science
Revista:
Physica A: Statistical Mechanics and its Applications
ISSN:
0378-4371
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The general behavior of enantioselective adsorption by templated chiral substrates is studied inthe framework of lattice-gas and random sequential adsorption theories. The template is assumedto be formed by randomly preadsorbing a chiral species A on a square lattice of sites. A secondchiral probe species, B, thus performs a random sequential adsorption process on the templatedsubstrate and the enantioselectivity of the process with respect to one of the B enantiomersis obtained as a function of the relevant parameters of the model. All species considered inthe present study are considered as monomers, i.e., they occupy a single adsorption site. In anextension of the simple model, the possibility that the chiral probe species can themselves actas templates is taken into account.It is shown how di5erent arrangements of A molecules on the surface generate di5erent enantioselectivities as a function of coverage, some of which have been observed experimentally.
Palabras clave:
Chiral catalysis
,
Enantioselectivity
,
Adsorption
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Articulos(CCT - SAN LUIS)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SAN LUIS
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SAN LUIS
Citación
Romá, Federico José; Stacchiola, Dario Jose; Tysoe, Wilfred T.; Zgrablich, Jorge Andres; Lattice-gas modeling of enantioselective adsorption by template chiral substrates; Elsevier Science; Physica A: Statistical Mechanics and its Applications; 338; 3-4; 15-7-2004; 493-510
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