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Artículo

The photoinduced reaction of 2-iodothiophene in solutions of n-heptane, dichloromethane and methanol

Herrera, Olga Susana; Nieto, Jorge Daniel; Olleta, A.C.; Lane, Silvia IreneIcon
Fecha de publicación: 05/2011
Editorial: John Wiley & Sons Ltd
Revista: Journal Of Physical Organic Chemistry
ISSN: 0894-3230
e-ISSN: 0894-3230
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Químicas

Resumen

The photoinduced reaction of 2-iodothiophene in n-heptane, dichloromethane and methanol was studied at room temperature from experiments carried out with degassed solutions. The photoproducts of the reaction were mainly thiophene and small amounts of iodine in all three solvents used. The concentration of 2-iodothiophene decreases throughout photolysis, following a first-order rate law and the pseudo-first-order rate constants were determined in the three solvents used. The photochemistry of the system was quantified determining the quantum yields of 2-iodothiophene consumption and thiophene formation in n-heptane solutions. The results show that under the experimental conditions of this research, products deriving only from the reaction of the thienyl radical were observed. To support the experimental results, calculations were performed of the ionization potential of the thienyl radical, electron affinity of the iodine atom and free energy of solvation of the corresponding iodide and carbocation in the different solvents used. Copyright © 2010 John Wiley & Sons, Ltd.
Palabras clave: 2-Iodothiophene , Chemical Kinetics , Photoinduced Reaction , Thienyl Radical , Thiophene
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/66023
URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/poc.1769
DOI: https://dx.doi.org/10.1002/poc.1769
Colecciones
Articulos(INFIQC)
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Citación
Herrera, Olga Susana; Nieto, Jorge Daniel; Olleta, A.C.; Lane, Silvia Irene; The photoinduced reaction of 2-iodothiophene in solutions of n-heptane, dichloromethane and methanol; John Wiley & Sons Ltd; Journal Of Physical Organic Chemistry; 24; 5; 5-2011; 398-406
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