Spectroscopic, structural and photophysical characterization of chloro-bridged iridium(<scp>iii</scp>) and rhodium(<scp>iii</scp>) dinuclear complexes with 1-phenyl-1<i>H</i>-pyrazole and their analogues with 1-(2,4-difluorophenyl)-1<i>H</i>-pyrazole
This paper deals with the synthesis and spectroscopic characterization of four important precursors, dinuclear [(C^N)<sub>2</sub>Ir-μ-Cl]<sub>2</sub> and [(C^N)<sub>2</sub>Rh-μ-Cl]<sub>2</sub> complexes, containing deprotonated 1-phenyl-1<i>H</i>-pyrazole or 1-(2,4-difluorophenyl)-1<i>H</i>-pyrazole as cyclometallating (C^N) ligands. The molecular structures of these μ-chloro-bridged complexes were confirmed by X-ray crystallography. These complexes showed luminescence in 1 : 1 MeOH/EtOH glasses at 77 K but were non-emissive in dichloromethane solutions at room temperature. A time-dependent DFT (TDDFT) study was conducted to gain insights into the electronic structures of these systems.
Authors
- K. Suwińska (ORCID: https://orcid.org/0000-0002-6702-0773)
- Camille Latouche (ORCID: https://orcid.org/0000-0002-3541-3417)
- Anna Kamecka (ORCID: https://orcid.org/0000-0003-2221-5646)
- Patryk Wójcik (ORCID: https://orcid.org/0009-0008-2091-5829)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Institut Universitaire de France (FR)
- University of Siedlce (PL)
- Institut des Matériaux Jean Rouxel (FR)
- Cardinal Stefan Wyszynski University in Warsaw (PL)
- Nantes Université (FR)
Publication Details
- Journal
- Dalton Transactions
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5dt01156f
- Citations
- 2
- Primary Topic
- Magnetism in coordination complexes
- Type
- article
- Field-Weighted Citation Impact
- 0.85