Multifunctional Pt(ii) metallomesogens exhibiting luminescence and proton conductivity in the mesophase near room temperature

Cristián Cuerva, José A. Campo, Mercedes Cano, Rainer Schmidt, Carlos Lodeiro

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

New asymmetrical pyridine- and isoquinoline-functionalized bis(pyrazolate) Pt(ii) metallomesogens have been engineered and designed to exhibit multifunctional properties in terms of mesomorphism, photoluminescence and ionic conductivity near room temperature. The molecules are self-assembled in hexagonal columnar mesophases via PtPt interactions, which generates a strong orange-red emission as a result of the formation of triplet metal-metal-to-ligand charge-transfer (3MMLCT) excited states. Concomitantly, the hexagonal columnar mesophases open continuous nanochannels that have been used for proton conduction over a wide range of temperatures. It is also noteworthy that the luminescence typically decreases with temperature, whereas the ionic conductivity increases to values of the order of 10−5 Ω−1 cm−1 at ca. 300 °C in the mesophase.

Original languageEnglish
Pages (from-to)9723-9733
Number of pages11
JournalJournal of Materials Chemistry C
Volume6
Issue number36
DOIs
Publication statusPublished - 1 Jan 2018

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