| dc.creator | Stacchiola, Dario | |
| dc.creator | Calaza, Florencia | |
| dc.creator | Burkholder, Luke | |
| dc.creator | Schwabacher, Alan | |
| dc.creator | Neurock, Matthew | |
| dc.creator | Tysoe, Wilfred | |
| dc.date | 2011-03-30 | |
| dc.date.accessioned | 2022-11-04T23:02:27Z | |
| dc.date.available | 2022-11-04T23:02:27Z | |
| dc.identifier | https://produccioncientificaluz.org/index.php/ciencia/article/view/9595 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/5129538 | |
| dc.description | The reaction pathway for the palladium-catalyzed synthesis of vinyl acetate from acetic acid, ethylene and oxygen is investigated using reflection-absorption infrared spectroscopy by monitoring the rate of acetate titration by gas-phase ethylene. This reveals that acetate species are removed by reaction with gas-phase ethylene resulting in vinyl acetate formation. Reaction with C2D4 reveals a large (ï ¾6) isotope effect indicating that hydrogen is involved in the rate-limiting step. This also results in the appearance of an infrared feature that is assigned to an acetoxyethyl- palladium intermediate. Acetate reaction rates are different for the isotopomers, CH2CD2 and CHDCHD. These observations are consistent with a reaction pathway first proposed by Samanos in which ethylene reacts with an acetate species to form an acetoxyethyl-palladium intermediate, which then reacts to form vinyl acetate by a ï ¢-hydride elimination reaction. | es-ES |
| dc.format | application/pdf | |
| dc.language | spa | |
| dc.publisher | Facultad Experimental de Ciencias de la Universidad del Zulia | es-ES |
| dc.relation | https://produccioncientificaluz.org/index.php/ciencia/article/view/9595/9581 | |
| dc.rights | Derechos de autor 2016 Ciencia | es-ES |
| dc.source | Ciencia; Vol. 14: Edición Especial | es-ES |
| dc.source | 1315-2076 | |
| dc.subject | infrared spectroscopy | es-ES |
| dc.subject | Pd(111) | es-ES |
| dc.subject | vinyl acetate synthesis | es-ES |
| dc.title | Probing elementary steps under reaction conditions using infrared spectroscopy | es-ES |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
