The Solid-State Substitution Reaction between Halogenoacetates and Metal Halides

✍ Scribed by Matthias Epple; Roland Seifert

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 229 KB
• Volume: 121
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1996.0018

✦ Synopsis

substitution reaction is well known for a pair of solid metal halides and in organic solution chemistry, but-to our Halogenoacetates react with metal halides in the solid state via halogen exchange. This was studied in detail for the reaction knowledge-unknown so far for solid organic compounds. between sodium chloroacetate and sodium iodide to sodium It was the aim of our work to explore the potential of this iodoacetate and sodium chloride. The reaction was followed at reaction type in the solid state. As organic reactants we 50, 70, and 90؇C by discontinuous proton NMR spectroscopy used alkali halogenoactates. These are advantageous for and at 90؇C by in situ high-temperature X-ray powder diffracsuch a study because they are all solid, nonvolatile and tometry (TXRD). The reaction leads to an incorporation of easily accessible. The inorganic phases were alkali metal iodoacetate into the chloroacetate lattice. This destabilizes the halides. lattice and accelerates the thermal decomposition of the sodium halogenoacetates.