2026-04-28T19:45:04Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/594072024-05-15T19:00:56Zcom_10324_1186com_10324_931com_10324_894col_10324_1404
Ponce de León Pintado, Jaime
Peñas de Frutos, Marconi Nicolás
Vélez Blasco, Andrea
Aullón, Gabriel
Espinet Rubio, Pablo
2023-04-27T12:57:21Z
2023-04-27T12:57:21Z
2023
Dalton Transactions, 2023, 52, 3265–3269
1477-9226
https://uvadoc.uva.es/handle/10324/59407
10.1039/d3dt00408b
3265
11
3269
Dalton Transactions
52
1477-9234
Producción Científica
Complexes trans-[PdX2L2] (X = Cl and Br), where L is 1-(PR2),2-(CH[double bond, length as m-dash]CH–C(O)Ph)-C6F4 (R = Ph, Cy, and iPr), display phosphorescent emission in the solid state, whereas due to their substantially lower lifetimes, the free ligands exhibit fluorescent behaviour. Alternatively, structurally identical derivatives with halide replaced by CN− or Pd replaced by Pt are non-emissive. DFT calculations explain this diverse behaviour, showing that the hybridization of orbitals of the MX2 moiety with those of the chalcone fragment of ligands is significant only for the LUMO of the emissive compounds. In other words, in our complexes, only MLMCT processes (LM = Metal-perturbed Ligand-centered orbital) lead to observable luminescence.
Ministerio de Ciencia e Innovación (Projects PID2020-118547GB-I00 and PGC 2018-093863-B-C21)
Ministerio de Ciencia e Innovación (FPI studentship: BES-2017-080726)
Universidad de Valladolid. Margarita Salas postdoctoral fellowship (ref. CONVREC-2021-221).
application/pdf
eng
Royal Society of Chemistry
info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/3.0/
© 2023 The Royal Society of Chemistry
Attribution 3.0 Unported Licence
Luminescence
Luminiscencia
2210 Química Física
Solid state luminescence of phosphine-EWO ligands with fluorinated chalcone skeletons and their PdX2 complexes: metal-promoted phosphorescence enhancement
info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
https://pubs.rsc.org/en/content/articlelanding/2023/dt/d3dt00408b
SI