Remote modification of bidentate phosphane ligands controlling the photonic properties in their complexes: Enhanced performance of [Cu(RN-xantphos)(N^N)][PF6] in light-emitting electrochemical cells
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Remote modification of bidentate phosphane ligands controlling the photonic properties in their complexes: Enhanced performance of [Cu(RN-xantphos)(N^N)][PF6] in light-emitting electrochemical cells

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Remote modification of bidentate phosphane ligands controlling the photonic properties in their complexes: Enhanced performance of [Cu(RN-xantphos)(N^N)][PF6] in light-emitting electrochemical cells

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dc.contributor.author Arnosti, Nina
dc.contributor.author Brunner, Fabian
dc.contributor.author Susic, Isidora
dc.contributor.author Keller, Sarah
dc.contributor.author Junquera-Hernández, José M.
dc.contributor.author Prescimone, Alessandro
dc.contributor.author Bolink, Henk
dc.contributor.author Sessolo, Michele
dc.contributor.author Ortí Guillén, Enrique
dc.contributor.author Housecroft, Catherine E.
dc.contributor.author Constable, Edwin C.
dc.date.accessioned 2020-07-22T07:59:33Z
dc.date.available 2021-03-09T05:45:05Z
dc.date.issued 2020
dc.identifier.uri https://hdl.handle.net/10550/75275
dc.description.abstract A series of copper(I) complexes of the type [Cu(HN-xantphos)(N^N)][PF6] and [Cu(BnN-xantphos)(N^N)][PF6], in which N^N = bpy, Mebpy, and Me2bpy, HN-xantphos = 4,6-bis(diphenylphosphanyl)-10H-phenoxazine and BnNxantphos = 10-benzyl-4,6-bis(diphenylphosphanyl)-10H-phenoxazine is described. The single crystal structures of [Cu(HN-xantphos)(Mebpy)][PF6] and [Cu(BnN-xantphos)(Me2bpy)][PF6] confirm the presence of N^N and P^P chelating ligands with the copper(I) atoms in distorted coordination environments. Solution electrochemical and photophysical properties of the BnNxantphos- containing compounds (for which the highest-occupied molecular orbital is located on the phenoxazine moiety) are reported. The first oxidation of [Cu(BnN-xantphos)(N^N)][PF6] occurs on the BnN-xantphos ligand. Timedependent density functional theory (TD-DFT) calculations have been used to analyze the solution absorption spectra of the [Cu(BnN-xantphos)(N^N)][PF6] compounds. In the solid-state, the compounds show photoluminescence in the range 518-555 nm for [Cu(HN-xantphos)(N^N)][PF6] and 520-575 nm for [Cu(BnN-xantphos)(N^N)][PF6] with a blue-shift on going from bpy to Mebpy to Me2bpy. [Cu(BnN-xantphos)(Me2bpy)][PF6] exhibits a solid-state photoluminescence quantum yield of 55% with an excited state lifetime of 17.4 μs. Bright light-emitting electrochemical cells are obtained using this complex, and it is shown that the electroluminescence quantum yield can be enhanced by using less conducting hole injection layers.
dc.language.iso eng
dc.relation.ispartof Advanced Optical Materials, 2020, vol. 8, num. 10, p. 1901689-1-1901689-11
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Arnosti, Nina Brunner, Fabian Susic, Isidora Keller, Sarah Junquera-Hernández, José M. Prescimone, Alessandro Bolink, Henk Sessolo, Michele Ortí Guillén, Enrique Housecroft, Catherine E. Constable, Edwin C. 2020 Remote modification of bidentate phosphane ligands controlling the photonic properties in their complexes: Enhanced performance of [Cu(RN-xantphos)(N^N)][PF6] in light-emitting electrochemical cells Advanced Optical Materials 8 10 1901689-1 1901689-11
dc.subject Electroquímica
dc.subject Materials
dc.title Remote modification of bidentate phosphane ligands controlling the photonic properties in their complexes: Enhanced performance of [Cu(RN-xantphos)(N^N)][PF6] in light-emitting electrochemical cells
dc.type info:eu-repo/semantics/article
dc.date.updated 2020-07-22T07:59:34Z
dc.identifier.doi https://doi.org/10.1002/adom.201901689
dc.identifier.idgrec 137262
dc.embargo.terms 1 year

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