Visible light harvesting alkyne hydrosilylation mediated by pincer platinum complexe
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Other documents of the author: Ibañez-Ibañez, Laura; Lázaro, Ariadna; Mejuto, Carmen; Crespo, Margarita; Vicent Barrera, Cristian; Rodríguez, Laura; Mata Martínez, Jose A
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comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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INVESTIGACIONMetadata
Title
Visible light harvesting alkyne hydrosilylation mediated by pincer platinum complexeAuthor (s)
Date
2023-12Publisher
ElsevierISSN
0021-9517; 1090-2694Bibliographic citation
L. Ibáñez-Ibáñez, A. Lázaro, C. Mejuto, M. Crespo, C. Vicent, L. Rodríguez, Mata, J. A. Mata. Visible light harvesting alkyne hydrosilylation mediated by pincer platinum complexes. Journal of Catalysis, 428 (2023), pp. 115155, 10.1016/j.jcat.2023.115155Type
info:eu-repo/semantics/articlePublisher version
https://www.sciencedirect.com/science/article/abs/pii/S0021951723004001?casa_tok ...Version
info:eu-repo/semantics/submittedVersionSubject
Abstract
In this manuscript we assess the catalytic properties of pincer platinum complexes in alkyne hydrosilylation either under photo or thermal conditions. The visible light-induced hydrosilylation proved to be more ... [+]
In this manuscript we assess the catalytic properties of pincer platinum complexes in alkyne hydrosilylation either under photo or thermal conditions. The visible light-induced hydrosilylation proved to be more efficient. It can be performed at room temperature and required lower catalyst loadings than that operating under thermal conditions. The platinum complexes play a dual role in photohydrosilylation as serve as a photosensitizer and a catalyst enabling species in bond breaking/forming transformations. In addition, alkyne hydrosilylation is achieved with moderate regio- and stereoselectivity but is enhanced under photocatalytic conditions and in the case of terminal alkynes we have observed the formation of β(Z) products not observable under thermal conditions. Such differences in selectivity constitute an example of stereodivergent catalysis dictated under photochemical or thermal conditions. The selectivity differences are ascribed to a distinctive reaction mechanism for the light- vs thermally-induced process that involve radical or organometallic intermediates, respectively. [-]
Is part of
Journal of Catalysis, 2023, vol. 428Funder Name
Ministerio de Ciencia e Innovación | Ministerio de Ciencia, Innovación y Universidades | Universitat Jaume I | Generalitat Valenciana
Funder ID
http://dx.doi.org/10.13039/501100011033
Project code
MCIN/PEICTI2021-2023/PID2021-126071OB-C22 | MICIU/ICTI2017-2020/PID2019-104121GB-I00 | UJI-B2022-23 | PROMETEU/2020/02 | FPU20/04385
Project title or grant
Herramientas supramoleculares para aumentar la emisión de fosforescencia
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