dc.creator | Curado, Natalia | es |
dc.creator | Carrasco, Mario | es |
dc.creator | Álvarez González, Eleuterio | es |
dc.creator | Maya Díaz, Celia María | es |
dc.creator | Peloso, Riccardo | es |
dc.creator | Rodríguez, Amor | es |
dc.creator | López Serrano, Joaquín | es |
dc.creator | Carmona Guzmán, Ernesto | es |
dc.date.accessioned | 2017-11-20T16:04:39Z | |
dc.date.available | 2017-11-20T16:04:39Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Curado, N., Carrasco, M., Álvarez, E., Maya, C., Peloso, R., Rodríguez, A.,...,Carmona, E. (2015). Lithium Di-‐ and Trimethyl Dimolybdenum(II) Complexes with Mo-‐Mo Quadruple Bonds and Bridging Methyl Groups. Journal of the American Chemical Society, 137 (38), 12378-12387. | |
dc.identifier.issn | 0002-7863 (impreso) | es |
dc.identifier.issn | 1520-5126 (electrónico) | es |
dc.identifier.uri | http://hdl.handle.net/11441/66266 | |
dc.description.abstract | New dimolybdenum complexes of composition [Mo2{μ-Me}2Li(S)}(μ- X)(μ-N^N)2] (3a−3c), where S = THF or Et2O and N^N represents a bidentate aminopyridinate or amidinate ligand that bridges the quadruply bonded molybdenum atoms, were prepared from the reaction of the appropriate [Mo2{μ-O2CMe}2(μ-N^N)2] precursors and LiMe. For complex 3a, X = MeCO2, while in 3b and 3c, X = Me. Solution NMR studies in C6D6 solvent support formulation of the complexes as contact ion pairs with weak agostic Mo−CH3···Li interactions, which were also evidenced by X-ray crystallography in the solid-state structures of the molecules of 3a and 3b. Samples of 3c enriched in 13C (99%) at the metal-bonded methyl sites were also prepared and investigated by NMR spectroscopy employing C6D6 and THF-d8 solvents. Crystallization of 3c from toluene:tetrahydrofuran mixtures provided single crystals of the solvent separated ion pair complex [Li(THF)4] [Mo2(Me)2(μ-Me){μ-HC(NDipp)2}2] (4c), where Dipp stands for 2,6-iPr2C6H3. A computational analysis of the Mo2(μ-Me)2Li core of complexes 3a and 3b has been developed, which is consistent with a small but non-negligible electron-density sharing between the C and Li atoms of the mainly ionic CH3···Li interactions. | es |
dc.description.sponsorship | Ministerio de Ciencia e Innovación CTQ2010-‐15833, CTQ2013-‐42501-‐P, BES-‐2011-‐047643 | es |
dc.description.sponsorship | Consolider-‐Ingenio 2010 CSD2007-‐00006 | es |
dc.description.sponsorship | Junta de Andalucía FQM-‐119, P09-‐FQM-‐5117 | es |
dc.description.sponsorship | Ministerio de Educación AP-‐4193 | es |
dc.description.sponsorship | Ministerio de Economía y Competitividad CTQ2014-‐52769-‐C3-‐3-‐R | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | American Chemical Society | es |
dc.relation.ispartof | Journal of the American Chemical Society, 137 (38), 12378-12387. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Bridging methyl groups | es |
dc.subject | Multiple bonds | es |
dc.subject | Molybdenum | es |
dc.subject | NMR spectroscopy | es |
dc.subject | Competitional studies | es |
dc.title | Lithium Di-‐ and Trimethyl Dimolybdenum(II) Complexes with Mo-‐Mo Quadruple Bonds and Bridging Methyl Groups | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.relation.projectID | CTQ2010-‐15833 | es |
dc.relation.projectID | CTQ2013-‐42501-‐P | es |
dc.relation.projectID | BES-‐2011-‐047643 | es |
dc.relation.projectID | CSD2007-‐00006 | es |
dc.relation.projectID | FQM-‐119 | es |
dc.relation.projectID | P09-‐FQM-‐5117 | es |
dc.relation.projectID | AP-‐4193 | es |
dc.relation.projectID | CTQ2014-‐52769-‐C3-‐3-‐R | es |
dc.relation.publisherversion | http://dx.doi.org/10.1021/jacs.5b07899 | es |
dc.identifier.doi | 10.1021/jacs.5b07899 | es |
idus.format.extent | 12 p. | es |
dc.journaltitle | Journal of the American Chemical Society | es |
dc.publication.volumen | 137 | es |
dc.publication.issue | 38 | es |
dc.publication.initialPage | 12378 | es |
dc.publication.endPage | 12387 | es |