Your browser doesn't support javascript.
loading
Enhanced Diffusion of Molecular Catalysts is Due to Convection.
MacDonald, Thomas S C; Price, William S; Astumian, R Dean; Beves, Jonathon E.
Afiliación
  • MacDonald TSC; School of Chemistry, UNSW Sydney, Sydney, NSW, 2052, Australia.
  • Price WS; Nanoscale Group, School of Science and Health, Western Sydney University, Penrith, NSW, 2751, Australia.
  • Astumian RD; Department of Physics, University of Maine, Orono, ME, 04469-5709, USA.
  • Beves JE; School of Chemistry, UNSW Sydney, Sydney, NSW, 2052, Australia.
Angew Chem Int Ed Engl ; 58(52): 18864-18867, 2019 12 19.
Article en En | MEDLINE | ID: mdl-31657088
Intriguing reports of enhanced diffusion in enzymes and molecular catalysts have spurred significant interest in experimental and theoretical investigations, and the mechanism of this phenomenon is the topic of lively debate. Here we use time-resolved diffusion NMR methods to measure the diffusion coefficients (D) of small molecule species involved in chemical reactions with high temporal resolution. We show the enhanced diffusion of small molecules cannot be explained by reaction velocity, and that apparent measurements of enhanced diffusion by small molecules appear to be caused by bulk fluid flow processes such as convection.
Palabras clave

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2019 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Alemania

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2019 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Alemania