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N-Heterocyclic carbene derivatives to modify gold superatom characteristics. Tailorable electronic and optical properties of [Au11(PPh3)7LCl2]+ as a cluster from relativistic DFT
dc.contributor.author | Munõz-Castro, Álvaro | |
dc.date.accessioned | 2022-04-01T15:33:32Z | |
dc.date.available | 2022-04-01T15:33:32Z | |
dc.date.issued | 2022-03-09 | |
dc.identifier | 10.1039/d1cp04310b | |
dc.identifier.issn | 14639084 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12728/10001 | |
dc.description.abstract | Atomically precise gold superatoms are useful building blocks whose properties can be tuned by the proper choice of ligands in the protecting ligand layer. Herein, different N-heterocyclic carbene (NHC) derivatives of the prototypical [Au11(PPh3)8Cl2]+ cluster were evaluated by the replacement of a single ligand, which led to isoelectronic [Au11(PPh3)7(NHC)Cl2]+ species, enabling further understanding of the possible changes in the resulting cluster properties. Our results reveal the great variation in the HOMO-LUMO gap and optical features when going from strong to weak σ-donor NHC ligands. The Au11 core retains similar features throughout the series, and the lowest unoccupied orbital (LUMO) is further stabilized, indicating greater π*-NHC character for the weaker σ-donor ligands, which favors directional core-ligand optical charge transfer to a single ligand. The ligand-tailored behavior of the [Au11(PPh3)7LCl2]+ cluster underlies its tunable characteristics, indicating its potential use in novel devices as building blocks of nanostructured materials, which favors further versatility and applications of superatomic clusters. | es_ES |
dc.language.iso | en | es_ES |
dc.publisher | NLM (Medline) | es_ES |
dc.title | N-Heterocyclic carbene derivatives to modify gold superatom characteristics. Tailorable electronic and optical properties of [Au11(PPh3)7LCl2]+ as a cluster from relativistic DFT | es_ES |
dc.type | Article | es_ES |