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Keywords:

  • Raman spectroscopy;
  • Fusibility diagrams;
  • Phase transitions;
  • Cyanates;
  • Lithium;
  • Potassium

Abstract

The synthesis, structural, and thermal characterization of lithium cyanate are reported in this work. LiOCN forms crystals in the trigonal crystal system. The structure was solved in the space group Requation imagem. It is isomorphous to the structure of sodium cyanate. In the temperature range from –90 °C up to the melting point no phase transition was observed. Furthermore the vibrational Raman spectrum was measured. The system KOCN-LiOCN shows a dystecticum and the new phase was confirmed by powder X-ray diffraction.