Supramolecular assembly of diplatinum species through weak Pt(II)⋅⋅⋅Pt(II) intermolecular interactions: a combined experimental and computational study
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...
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| Veröffentlicht in: | Chemistry : a European journal 2012-10, Vol.18 (43), p.13787-13799 |
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| container_title | Chemistry : a European journal |
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| creator | Pérez Paz, Alejandro Espinosa Leal, Leonardo A Azani, Mohammad-Reza Guijarro, Alejandro Sanz Miguel, Pablo J Givaja, Gonzalo Castillo, Oscar Mas-Ballesté, Rubén Zamora, Félix Rubio, Angel |
| description | 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. |
| doi_str_mv | 10.1002/chem.201201962 |
| format | Article |
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| title | Supramolecular assembly of diplatinum species through weak Pt(II)⋅⋅⋅Pt(II) intermolecular interactions: a combined experimental and computational study |
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