Comparative analysis of self-aggregation of liquid crystalline Pt(II) complexes in solution and in neat films

Alfiya F. Suleymanova, Yulia A. Yakovleva, Oleg S. Eltsov, Anastasiya O. Lantushenko, Maxim P. Evstigneev*, Bertrand Donnio, Benoît Heinrich, Valery N. Kozhevnikov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Two novel cycloplatinated complexes that differ by the presence/absence of a lateral fused cyclopenteno ring, respectively, were prepared. Although contributing to only a few percentage of the whole molecular volume, the presence of this aliphatic protuberance appears to be essential for the emergence of liquid crystalline behaviour. This pair of two similar compounds, non-mesomorphic complex and mesomorphic complex, was prepared as a model to assess the possible link of the self-aggregation in solution with the appearance of the liquid crystallinity in molten state. NMR dilution studies in CDCl3 solution and X-ray diffusion study in neat films show qualitative similarity of the aggregated structures formed by liquid crystalline complex. Solution studies may therefore be a useful additional tool to the characterization of the liquid crystalline properties and other self-association processes of Pt(II) complexes.

Original languageEnglish
Article number121750
Number of pages6
JournalJournal of Organometallic Chemistry
Volume938
Early online date17 Feb 2021
DOIs
Publication statusPublished - 15 Apr 2021

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