pH effect on hydrothermal synthesis of the coordination polymers containing pyrazine-2,3-dicarboxylate: Investigation of thermal stability, luminescence, and electrical conductivity properties

A. Y. Burak, Emel Yildiz, Jon Zubieta

Research output: Contribution to journalArticle

Abstract

Hydrothermal reactions of the lanthanide(III) salt with 2,3-pyrazinedicarboxylic (2,3-pzdc) acid yielded the coordination polymers [La2(2,3-pzdc)3(H2O)]n.3nH2O (1) and [La2(2,3-pzdc)3(H2O)]n.2nH2O (2). Compounds were obtained in a three dimensional form with different pH values under subcritical water conditions. The structures had variable coordination numbers. In addition, pH values play an important role in the structural chemistry of these materials. Different characterization techniques (elemental analysis, FT-IR, ICP-OES, TG/DTA, FESEM, PXRD, BET and single crystal X-ray) were carried out to confirm crystallinity, porosity, purity and chemical composition of the coordination polymers. Crystal structures of the polymers were examined in detail. Their thermal stability, luminescence and electrical conductivity properties were investigated in the solid state.

Original languageEnglish (US)
Pages (from-to)243-258
Number of pages16
JournalJournal of the Turkish Chemical Society, Section A: Chemistry
Volume7
Issue number1
DOIs
StatePublished - Jan 1 2020

Keywords

  • Electrical conductivity
  • Hydrothermal synthesis
  • Lanthanum coordination polymer
  • pH effect

ASJC Scopus subject areas

  • Chemistry(all)

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