2024-03-28T17:59:47Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/68152022-08-24T00:05:45Zcom_10259_4354com_10259_5086com_10259_2604col_10259_4355
Cuéllar, Elena
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500
Diez Varga, Alberto
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600
Torroba Pérez, Tomás
554
600
Domingo-Legarda, Pablo
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Alemán, José
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Cabrera, Silvia
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Martín-Alvarez, Jose M.
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Miguel, Daniel
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Villafañe, Fernando
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2022-08-23T10:29:35Z
2022-08-23T10:29:35Z
2021-05
0020-1669
http://hdl.handle.net/10259/6815
10.1021/acs.inorgchem.0c03389
1520-510X
New 1,2-azolylamidino complexes cis-[Ru(bipy)2(NH═C(R)az*-κ2N,N)](OTf)2 (R = Me, Ph; az* = pz, indz, dmpz) are synthesized via chloride abstraction after a subsequent base-catalyzed coupling of a nitrile with the previously coordinated 1,2-azole. The synthetic procedure allows the easy obtainment of complexes having different electronic and steric 1,2-azoylamidino ligands. All of the compounds have been characterized by 1H, 13C, and 15N NMR and IR spectroscopy and by monocrystal X-ray diffraction. Photophysical studies support their phosphorescence, whereas their electrochemistry reveals reversible RuII/RuIII oxidations between +1.13 and +1.25 V (vs SCE). The complexes have been successfully used as catalysts in the photooxidation of different thioethers, the complex cis-[Ru(bipy)2(NH═C(Me)dmpz-κ2N,N)]2+ showing better catalytic performance in comparison to that of [Ru(bipy)3]2+. Moreover, the significant catalytic performance of the dimethylpyrazolylamidino complex is applied to the preparation of the drug modafinil, which is obtained using ambient oxygen as an oxidant. Finally, mechanistic assays suggest that the oxidation reaction follows a photoredox route via oxygen radical anion formation.
The authors in Valladolid gratefully acknowledge financial support from the Spanish MINECO of Spain (PGC2018099470-B-I00) and Junta de Castilla y León (VA130618), and the authors in Burgos gratefully acknowledge financial support from the Junta de Castilla y León, Consejería de Educación y Cultura y Fondo Social Europeo (Project BU263P18). E.C. thanks the UVa for her grant. The authors in Universidad Autónoma de Madrid acknowledge financial support from the Spanish MINECO (RTI2018-095038-B-I00). We also thank Gabriel García-Herbosa and Irene Abajo-Cuadrado (Universidad de Burgos, Burgos, Spain) for helping us with the electrochemical and photophysical experiments, respectively.
application/pdf
eng
American Chemical Society
Inorganic Chemistry. 2021, V. 60, n. 10, p. 7008–7022
https://doi.org/10.1021/acs.inorgchem.0c03389
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-099470-B-I00/ES/APLICACION DE MOLECULAS NANOGRAFENICAS EN LA MEJORA DE LAS PROPIEDADES OPTOLELECTRONICAS DE CELULAS SOLARES ORGANICAS
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095038-B-I00/ES/CONTROLANDO PROCESOS ORGANOCATALITICOS Y FOTOCATALITICOS ASIMETRICOS PARA LA SINTESIS DE MOLECULAS ORGANICAS
info:eu-repo/grantAgreement/Junta de Castilla y León//VA130618
info:eu-repo/grantAgreement/Junta de Castilla y León//BU263P18
Atribución 4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
Ketones
Ligands
Materials
Nitrogen compounds
Oxidation
Química inorgánica
Chemistry, Inorganic
Luminescent cis-Bis(bipyridyl)ruthenium(II) Complexes with 1,2-Azolylamidino Ligands: Photophysical, Electrochemical Studies, and Photocatalytic Oxidation of Thioethers
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Inorganic Chemistry
60
10
7008
7022
THUMBNAIL
Cuellar-ic_2021.pdf.jpg
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Cuellar-ic_2021.pdf
Cuellar-ic_2021.pdf
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10259/6815
oai:riubu.ubu.es:10259/6815
2022-08-24 02:05:45.83
Repositorio Institucional de la Universidad de Burgos
bubrep@ubu.es
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