Enhanced chemical synthesis at soft interfaces: a universal reaction-adsorption mechanism in microcompartments.
Phys Rev Lett
; 112(2): 028301, 2014 Jan 17.
Article
en En
| MEDLINE
| ID: mdl-24484045
ABSTRACT
A bimolecular synthetic reaction (imine synthesis) was performed compartmentalized in micrometer-diameter emulsion droplets. The apparent equilibrium constant (Keq) and apparent forward rate constant (k1) were both inversely proportional to the droplet radius. The results are explained by a noncatalytic reaction-adsorption model in which reactants adsorb to the droplet interface with relatively low binding energies of a few kBT, react and diffuse back to the bulk. Reaction thermodynamics is therefore modified by compartmentalization at the mesoscale--without confinement on the molecular scale--leading to a universal mechanism for improving unfavorable reactions.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Química Orgánica
/
Iminas
/
Modelos Químicos
Idioma:
En
Revista:
Phys Rev Lett
Año:
2014
Tipo del documento:
Article
País de afiliación:
Francia