MODELING OF THE AGGREGATION OF PLATINUM-CONTAINING MOLECULES
Abstract and keywords
Abstract (English):
Aggregation of platinum-containing complexes SAF-08, SAF-39 and SAF-40 was studied by 1H and 195Pt NMR spectroscopy in CDCl3 solution. The analysis of experimental data was carried out using four models of self-Association. It is found that the self-association constants slightly depend on the type of halogen atom associated with platinum, while the aggregation is anti-cooperative in nature. Studies have shown that 195Pt NMR can be used to quantify aggregation and is therefore applicable to most platinum-containing complexes.

Keywords:
NMR spectroscopy, luminescent platinum-containing complexes, self-association
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References

1. Kotze I.A., Gerber W.J., Wu Y.-S., Koch K.R. Cation-[small pi] induced aggregation of water-soluble [PtII(diimine)(Ln-S,O)]+ complexes studied by 1H DOSY NMR and TEM: from 'dimer aggregates' in acetonitrile to nano-aggregates ('metallogels') in water. Dalton Transactions, 2013, vol. 42 (11), p. 3791.

2. Mauro M., Aliprandi A., Cebrian C., Wang D., Kubel C., De Cola L. Self-assembly of a neutral platinum(ii) complex into highly emitting microcrystalline fibers through metallophilic interactions. Chemical Communications, 2014, vol. 50 (55), p. 7269.

3. Kozhevnikov V.N., Donnio B., Heinrich B., Bruce D.W. Morphology-driven absorption and emission colour changes in liquid-crystalline, cyclometallated platinum(ii) complexes. Chemical Communications, 2014, vol. 50 (91), p. 14191.

4. Beshnova D.A., Lantushenko A.O., Davies D.B., Evstigneev M.P. J. Chem. Phys., 2009, vol. 130, p. 165105.

5. Evstigneev M.P., Davies D.B., Veselkov A.N. Stochastic models (cooperative and non-cooperative) for NMR analysis of the hetero-association of aromatic molecules in aqueous solution. Chemical physics, 2006, vol. 321 (1), pp. 25-33.


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