Mixed diphosphine/diamine ruthenium (II) isomers: synthesis, structural characterization and catalytic hydrogenation of ketones

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dc.creatorNascimento, Rebecca Dias do
dc.creatorSilva, Andressa Kuhnen
dc.creatorLiao, Luciano Morais
dc.creatorDeflon, Victor Marcelo
dc.creatorUeno, Leonardo Tsuyoshi
dc.creatorDinelli, Luís Rogério
dc.creatorBogado, André Luiz
dc.date.accessioned2024-02-07T10:50:52Z
dc.date.available2024-02-07T10:50:52Z
dc.date.issued2018
dc.description.abstractThe complexes trans-[RuCl2(dppb)(cydn)] (1), trans-[RuCl2(dppb)(opda)] (2) and cis-[RuCl2(dppb)(cydn)] (3) were synthesized from [{RuCl2(dppb)}2-μ-(dppb)] {where: dppb = 1,4-bis(diphenylphosphino)butane; cydn = cis and trans (±) 1,2-diaminocyclohexane, and opda = o-phenylenediamine}. The complexes were characterized by nuclear magnetic resonance of phosphorus (31P{1H} NMR), cyclic voltammetry (CV), infrared and ultraviolet/visible spectra (IR and UV/vis) as well as elemental analyses (CHN). The X-ray structures of (1) and (3) were determined and they are presented here. DFT calculations and experimental data showed that the trans isomers are obtained as thermodynamic products while the cis isomers are kinetic products. This behavior is different than described in the literature for similar complexes, where the cis isomer is obtained from the trans isomer. Additionally, the catalytic activity of the complexes (1), (2) and (3) was investigated, as pre-catalysts, in the reduction of the acetophenone and 4-methylacetophenone by transfer-hydrogenation.
dc.identifier.citationNASCIMENTO, Rebecca D. et al. Mixed diphosphine/diamine ruthenium (II) isomers: synthesis, structural characterization and catalytic hydrogenation of ketones. Journal of Molecular Structure, Amsterdam, v. 1151, p. 277-285, 2017. DOI: 10.1016/j.molstruc.2017.09.044. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0022286017312231?via%3Dihub. Acesso em: 29 jan. 2024.
dc.identifier.doi10.1016/j.molstruc.2017.09.044
dc.identifier.issn0022-2860
dc.identifier.issne- 1872-8014
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0022286017312231?via%3Dihub
dc.language.isoeng
dc.publisher.countryHolanda
dc.publisher.departmentInstituto de Química - IQ (RMG)
dc.rightsAcesso Restrito
dc.titleMixed diphosphine/diamine ruthenium (II) isomers: synthesis, structural characterization and catalytic hydrogenation of ketones
dc.typeArtigo

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