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DC Field | Value | Language |
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dc.contributor.author | Albert Mach, Joan | - |
dc.contributor.author | Bosque Pueyo, Ramón | - |
dc.contributor.author | D'Andrea Rodríguez-Vida, Lucía | - |
dc.contributor.author | Durán, J.A. | - |
dc.contributor.author | Granell Sanvicente, Jaime Ramón | - |
dc.contributor.author | Bardia, Ma. Mercedes | - |
dc.contributor.author | Calvet Pallàs, Maria Teresa | - |
dc.date.accessioned | 2020-06-02T11:27:17Z | - |
dc.date.available | 2020-06-02T11:27:17Z | - |
dc.date.issued | 2016-05-06 | - |
dc.identifier.issn | 0022-328X | - |
dc.identifier.uri | http://hdl.handle.net/2445/163709 | - |
dc.description.abstract | Reaction of methyl (E)-4-(benzylideneamino)benzoate C6H5CH=N(C6H4-4-CO2Me) with Pd(OAc)(2) produced the dinuclear acetato bridge ortho-cyclopalladated compound [Pd{C6H4CH=N(C6H4-4-CO2Me)-kappa C-ortho,kappa(N)}](2)(mu-OAc)(2) (1). Compounds [Pd{C6H4CH=N(C6H4-4-CO2Me)-kappa C-ortho,kappa(N)}](2)(mu-Cl)(2) (2) and [Pd {C6H4CH] N(C6H4-4-CO2Me)-kappa C-ortho,kappa(N)}(py)(X)] [3 (X = OAc); 4 (X = Cl)] were also prepared and isolated in good yields by substitution reactions. H-1 and C-13{H-1} NMR in CDCl3 solution of compounds 3 and 4 revealed that they consisted of a mixture of trans-and cis-N,N isomers. Addition of pyridine-d(5) to solutions of 1 and 2 in CDCl3 in a molar ratio pyridine-d(5)/1 or 2 approximate to 50-55 gave solutions A and B, respectively, which contained compounds 5 and 6 analogous to 3 and 4, but with pyridine-d(5) rather than pyridine in their structural formula. In these solutions, the trans-and cis-N,N geometrical isomers of compounds 5 and 6 were interconverting between them in a dynamic equilibrium. In addition, an exchange between free and coordinated pyridine-d(5) was also taking place in solutions A and B. The NMR data for solution A showed that the dynamic equilibrium between the cis-and trans-N,N isomers of compound 5 was shifted to the trans-N,N isomer. However, the NMR data for solution B suggested that in this solution the equilibrium between the cis- and trans-N,N isomers of compound 6 was shifted to the cis-N,N isomer. Interconversion between the trans- and cis-N,N isomers of compounds 5 and 6 in solutions A and B plausibly proceeded through the intermediate ionic complexes [Pd{C6H4CH] N(C6H4-4CO(2)Me)-kappa C-ortho,kappa(N)}(py-d(5))(2)]X [7 (X = OAc), 8 (X = Cl)]. Ionic complexes 7 and 8 were not observed in CDCl3 solution but were the major species in D2O solutions containing compounds 1 and 2 and pyridine-d(5) in a molar ratio pyridine-d(5)/1 or 2 approximate to 50-55. The crystal structure of the adduct 1.2(CH3COOH) and that of compound 2 were determined by single crystal X-ray diffraction. A theoretical study on the difference in free Gibbs energy in CHCl3 solution between the cis-and trans-N,N isomers of compounds 3 and 4 is also included in this work. | - |
dc.format.extent | 26 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1016/j.jorganchem.2016.05.003 | - |
dc.relation.ispartof | Journal of Organometallic Chemistry, 2016, vol. 815-816, p. 44-52 | - |
dc.relation.uri | https://doi.org/10.1016/j.jorganchem.2016.05.003 | - |
dc.rights | cc-by-nc-nd (c) Elsevier B.V., 2016 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es | - |
dc.source | Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada) | - |
dc.subject.classification | Cristal·lografia | - |
dc.subject.classification | Estructura cristal·lina (Sòlids) | - |
dc.subject.classification | Compostos organometàl·lics | - |
dc.subject.other | Crystallography | - |
dc.subject.other | Layer structure (Solids) | - |
dc.subject.other | Organometallic compounds | - |
dc.title | Synthesis and crystal structure of the dinuclear cyclopalladated compounds of methyl (E)-4-(benzylideneamino)benzoate with acetato and chlorido bridge ligands: Study of their splitting reactions with pyridine | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 662230 | - |
dc.date.updated | 2020-06-02T11:27:17Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada) |
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