| Autor: |
Allis DG; Department of Chemistry, Syracuse University, Syracuse, NY 13210, USA., Torvisco A; Institute of Inorganic Chemistry, Technical University of Graz, 8010 Graz, Austria., Webb CC Jr; Department of Chemistry, Syracuse University, Syracuse, NY 13210, USA.; Department of Chemistry, SUNY Oneonta, Oneonta, NY 13820, USA., Gillett-Kunnath MM; Department of Chemistry, Syracuse University, Syracuse, NY 13210, USA., Ruhlandt-Senge K; Department for Physical & Environmental Sciences, University of Toronto, Scarborough, ON M1C 1A4, Canada. |
| Jazyk: |
angličtina |
| Zdroj: |
Molecules (Basel, Switzerland) [Molecules] 2024 Nov 02; Vol. 29 (21). Date of Electronic Publication: 2024 Nov 02. |
| DOI: |
10.3390/molecules29215187 |
| Abstrakt: |
The preparation and characterization of two novel europium-azobenzene complexes that demonstrate the effectiveness of this ligand for stabilizing reactive, redox-active metals are reported. With the family of rare earth metals receiving attention due to their potential as catalysts, critical components in electronic devices, and, more recently, in biomedical applications, a detailed understanding of factors contributing to their coordination chemistry is of great importance for customizing their stability and reactivity. This study introduces azobenzene as an effective nonprotic ligand system that provides novel insights into rare earth metal coordination preferences, including factors contributing to the coordinative saturation of the large, divalent europium centers. The two compounds demonstrate the impact of the solvent donors (tetrahydrofuran (THF) and dimethoxyethane (DME)) on the overall coordination chemistry of the target compounds. Apart from the side-on coordination of the doubly-reduced azobenzene and the anticipated N-N bond elongation due to decreased bond order, the two compounds demonstrate the propensity of the europium centers towards limited metal-π interactions. The target compounds are available by direct metallation in a straightforward manner with good yields and purity. The compounds demonstrate the utility of the azobenzene ligands, which may function as singly- or doubly-reduced entities in conjunction with redox-active metals. An initial exploration into the computational modeling of these and similar complexes for subsequent property prediction and optimization is performed through a methodological survey of structure reproduction using density functional theory. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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