Enhanced MMLCT Character in Thiol-Bridged Pt(II) Dimers Featuring Tridentate Cyclometalating Ligands

Key Points

• The study aims to investigate the effect of thiol-bridged ligands on platinum dimers' structural characteristics and metal-metal separation.
• Examined thiol-pyridine and thiol-quinoline bridging ligands with Pt(II) dimers.
• Utilized the tridentate ligand 4-tolyl-6-phenyl-2,2'-bipyridine (4tpbpy) for enhanced coordination.
• Analyzed coordination complexes to assess changes in metal-metal distance.
• Thiol-bridged ligands significantly reduced the metal-metal separation in Pt(II) dimers.
• Coordination with tridentate ligands showed improved structural stabilization of the dimers.