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Updated: May 18, 2026
Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents
Published on: May 28, 2014
Supramolecular assembly of diplatinum species through weak Pt(II)⋅⋅⋅Pt(II) intermolecular interactions: a combined
Alejandro Pérez Paz1, Leonardo A Espinosa Leal, Mohammad-Reza Azani
1Nano-Bio Spectroscopy Group, Departamento de Física de Materiales, Universidad del País Vasco, Centro de Física de Materiales, CSIC-UPV/EHU-MPC and DIPC, Donostia, San Sebastián, Spain.
Abstract:
The present study elucidates the factors that govern the spontaneous self-assembly of a family of dimetal [Pt(2)L(4)] (L=dithiocarboxylato ligand) complexes. Experimental data show that variables such as temperature, concentration, solvent and the nature of the ligand L have a critical effect on the reversible self-assembly of supramolecular [Pt(2)L(4)](n) entities. In solution, new UV/Vis spectroscopic features emerge at low temperatures and/or high concentrations, which are attributed to the formation of oligomeric [Pt(2)L(4)](n) species. The description of intermolecular Pt⋅⋅⋅Pt interactions, the main driving force for the association, was addressed from a computational perspective. The contributions from intermolecular Pt⋅⋅⋅S and S⋅⋅⋅S interactions to these supramolecular assemblies were found to be repulsive. Experimental UV/Vis data have been interpreted by means of computational spectroscopy.
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