Influence of radical initiators in gold catalysis: Evidence supporting trapping of radicals derived from azobis(isobutyronitrile) by gold halides

Mercedes Álvaro; Carmela Aprile; Avelino Corma; Belén Ferrer; Hermenegildo García

doi:10.1016/j.jcat.2006.10.003

Influence of radical initiators in gold catalysis: Evidence supporting trapping of radicals derived from azobis(isobutyronitrile) by gold halides

Mercedes Álvaro, Carmela Aprile, Avelino Corma, Belén Ferrer, Hermenegildo García

Unite de recherche en chimie des nanomateriaux

Résultats de recherche: Contribution à un journal/une revue › Article › Revue par des pairs

Résumé

Gold halides (AuCl₃, HAuCl₄, and AuCl) efficiently trap the radicals generated in the room-temperature photolysis of azobis(isobutyronitrile) (AIBN) to give an organogold H[(CH₃)₂CCN]₂AuCl₂ compound that has been characterized by spectroscopy. The characteristic features of the organogold are a quaternary carbon at 100 ppm on ¹³C NMR and a HR-MS peak with a molecular formula of C₈H₁₃N₂AuCl. Catalytic data for cyclohexene aerobic oxidation confirms the beneficial influence of the presence of AIBN on the catalytic activity of Au/CeO₂.

langue originale	Anglais
Pages (de - à)	249-252
Nombre de pages	4
journal	Journal of Catalysis
Volume	245
Numéro de publication	1
Les DOIs	https://doi.org/10.1016/j.jcat.2006.10.003
Etat de la publication	Publié - 1 janv. 2007

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10.1016/j.jcat.2006.10.003

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@article{67aaeab566be40138683bd994c32bec0,

title = "Influence of radical initiators in gold catalysis: Evidence supporting trapping of radicals derived from azobis(isobutyronitrile) by gold halides",

abstract = "Gold halides (AuCl3, HAuCl4, and AuCl) efficiently trap the radicals generated in the room-temperature photolysis of azobis(isobutyronitrile) (AIBN) to give an organogold H[(CH3)2CCN]2AuCl2 compound that has been characterized by spectroscopy. The characteristic features of the organogold are a quaternary carbon at 100 ppm on 13C NMR and a HR-MS peak with a molecular formula of C8H13N2AuCl. Catalytic data for cyclohexene aerobic oxidation confirms the beneficial influence of the presence of AIBN on the catalytic activity of Au/CeO2.",

keywords = "Gold catalysis, Organogold, Radical initiators, Radical trapping",

author = "Mercedes {\'A}lvaro and Carmela Aprile and Avelino Corma and Bel{\'e}n Ferrer and Hermenegildo Garc{\'i}a",

year = "2007",

month = jan,

day = "1",

doi = "10.1016/j.jcat.2006.10.003",

language = "English",

volume = "245",

pages = "249--252",

journal = "Journal of Catalysis",

issn = "0021-9517",

publisher = "Academic Press Inc.",

number = "1",

}

Influence of radical initiators in gold catalysis: Evidence supporting trapping of radicals derived from azobis(isobutyronitrile) by gold halides. / Álvaro, Mercedes; Aprile, Carmela; Corma, Avelino et al.
Dans: Journal of Catalysis, Vol 245, Numéro 1, 01.01.2007, p. 249-252.

Résultats de recherche: Contribution à un journal/une revue › Article › Revue par des pairs

TY - JOUR

T1 - Influence of radical initiators in gold catalysis: Evidence supporting trapping of radicals derived from azobis(isobutyronitrile) by gold halides

AU - Álvaro, Mercedes

AU - Aprile, Carmela

AU - Corma, Avelino

AU - Ferrer, Belén

AU - García, Hermenegildo

PY - 2007/1/1

Y1 - 2007/1/1

N2 - Gold halides (AuCl3, HAuCl4, and AuCl) efficiently trap the radicals generated in the room-temperature photolysis of azobis(isobutyronitrile) (AIBN) to give an organogold H[(CH3)2CCN]2AuCl2 compound that has been characterized by spectroscopy. The characteristic features of the organogold are a quaternary carbon at 100 ppm on 13C NMR and a HR-MS peak with a molecular formula of C8H13N2AuCl. Catalytic data for cyclohexene aerobic oxidation confirms the beneficial influence of the presence of AIBN on the catalytic activity of Au/CeO2.

AB - Gold halides (AuCl3, HAuCl4, and AuCl) efficiently trap the radicals generated in the room-temperature photolysis of azobis(isobutyronitrile) (AIBN) to give an organogold H[(CH3)2CCN]2AuCl2 compound that has been characterized by spectroscopy. The characteristic features of the organogold are a quaternary carbon at 100 ppm on 13C NMR and a HR-MS peak with a molecular formula of C8H13N2AuCl. Catalytic data for cyclohexene aerobic oxidation confirms the beneficial influence of the presence of AIBN on the catalytic activity of Au/CeO2.

KW - Gold catalysis

KW - Organogold

KW - Radical initiators

KW - Radical trapping

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U2 - 10.1016/j.jcat.2006.10.003

DO - 10.1016/j.jcat.2006.10.003

M3 - Article

AN - SCOPUS:33751020241

SN - 0021-9517

VL - 245

SP - 249

EP - 252

JO - Journal of Catalysis

JF - Journal of Catalysis

IS - 1

ER -

Influence of radical initiators in gold catalysis: Evidence supporting trapping of radicals derived from azobis(isobutyronitrile) by gold halides

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