Affiliation:
1. Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece
2. Institute of Materials Science and Computing, University Research Centre of Ioannina (URCI), GR-45110 Ioannina, Greece
Abstract
Mixed-ligand tetranuclear supramolecular coordination complexes (SCCs) of Pt(II)-p-biphenyl and bridging ligands derivatives of 4,4′-bypiridine (8)–(10), were synthesized and characterized. The SCCs were synthesized stepwise, starting from the Pt-p-biphenyl -Pt core. The crystal structure of complex {[Pt(2,2′-bpy)]4(μ-bph)2(μ-(4,4′-bpy)2}{PF6}4 (2,2′-bpy = 2,2′-bipyridine, bph = p-biphenyl and 4,4′-bpy = 4,4′ bipyridine), was determined using single-crystal diffraction methods. The emission profile of the tetranuclear complexes (8)–(10) was influenced by the length of the bridging ligands and was found to depend on solvent polarity. Dual-emission patterns in methanol–water mixtures were observed only in the cases of complexes (9) and (10), attributed to aggregation-induced emission phenomena.
Funder
Greece and the European Union
Subject
Chemistry (miscellaneous),Analytical Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Molecular Medicine,Drug Discovery,Pharmaceutical Science
Reference63 articles.
1. Saygili, Y., Stojanovic, M., Flores-Díaz, N., Zakeeruddin, S.M., Vlachopoulos, N., Grätzel, M., and Hagfeldt, A. (2019). Metal coordination complexes as redox mediators in regenerative dye-sensitized solar cells. Inorganics, 7.
2. Toward Sustainable, Colorless, and Transparent Photovoltaics: State of the Art and Perspectives for the Development of Selective Near-Infrared Dye-Sensitized Solar Cells;Grifoni;Adv. Energy Mater.,2021
3. Sustainable metal complexes for organic light-emitting diodes (OLEDs);Bizzarri;Coord. Chem. Rev.,2018
4. Luminescent oligonuclear metal complexes and the use in organic light-emitting diodes;Zhang;Coord. Chem. Rev.,2019
5. Multiphoton absorption at metal alkynyl complexes;Zhang;Coord. Chem. Rev.,2022