Influence of gold nanoparticles applied to catalytic hydrogenation of acetophenone with cationic complexes containing ruthenium.

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dc.contributor.authorSouza, Lanarck Cristina Moro
dc.contributor.authorSantos, Thiago A.
dc.contributor.authorPrado, Cássio Roberto Arantes do
dc.contributor.authorLima, Benedicto Augusto Vieira
dc.contributor.authorCorrea, Rodrigo de Souza
dc.contributor.authorBatista, Alzir Azevedo
dc.contributor.authorOtubo, Larissa
dc.contributor.authorEllena, Javier Alcides
dc.contributor.authorUeno, Leonardo Tsuyoshi
dc.contributor.authorDinelli, Luís Rogério
dc.contributor.authorBogado, André Luiz
dc.date.accessioned2017-08-10T18:17:32Z
dc.date.available2017-08-10T18:17:32Z
dc.date.issued2016
dc.description.abstractHerein the catalytic activity of cationic ruthenium(II) complexes [Ru]+ is described in the presence of gold nanoparticles (AuNPsn ) in the transfer hydrogenation of acetophenone, to produce phenylethanol. The catalytic activity of the complexes, with a general formula cis-[RuCl(CH3OH)(P–P)(N–N)]+ or cis- [RuCl(CH3OH)(P)2(N–N)]+ {where: P ¼ triphenylphosphine (PPh3); P–P ¼ 1,1-bis(diphenylphosphino) methane (dppm); 1,2-bis(diphenylphosphino)ethane (dppe); 1,3-bis(diphenylphosphino)propane (dppp), 1,4-bis(diphenylphosphino)butane (dppb); N–N ¼ 2,20-bipyridine; 4,40-dimethyl-2,20-bipyridine} was investigated in the presence of AuNPsn . The interaction between [Ru]+ and AuNPsn citrate capped is an electrostatic interaction, by a self-assembly processes, to produce a supramolecular species, labeled as [Ru]+/AuNPsn . This non-covalent interaction has no effect over the chemical and physical chemical parameters of the complexes, which provides a good point of comparison in the presence and absence of AuNPsn . The AuNPsn alone have no catalytic activity in the transfer hydrogenation of acetophenone within 24 h of reaction. However, the AuNPsn have improved the catalytic activity of the complexes that have biphosphines with tensioned or large bite angle, while for the complexes that have biphosphines with a strong chelate effect a decrease in the catalytic activity was observed. The evidence is supported by experimental values of the yields of the hydrogenated product and DFT calculations of the “RuP–P” intermediates. Suitable crystals of cis-[RuCl2(dppe)(bipy)], cis-[RuCl2(dppp)(bipy)] and cis- [RuCl(CH3OH)(dppb)(bipy)](PF6) were obtained and the X-ray structures are presented here.pt_BR
dc.identifier.citationSOUZA, L. C. M. et al. Influence of gold nanoparticles applied to catalytic hydrogenation of acetophenone with cationic complexes containing ruthenium. RSC Advances: an international journal to further the chemical sciences, v. 6, p. 53130-53139, 2016. Disponível em: <https://pubs.rsc.org/en/Content/ArticleLanding/RA/2016/C6RA05616D#!divAbstract>. Acesso em: 05 ago. 2017.pt_BR
dc.identifier.doihttps://doi.org/10.1039/C6RA05616D
dc.identifier.issn2046-2069
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/8510
dc.identifier.uri2https://pubs.rsc.org/en/Content/ArticleLanding/RA/2016/C6RA05616D#!divAbstractpt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.titleInfluence of gold nanoparticles applied to catalytic hydrogenation of acetophenone with cationic complexes containing ruthenium.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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