Phosphazenes

{
  "id": "MLC-T-CHM-008773",
  "term": "Phosphazenes",
  "field": "Chemistry",
  "definition": "Compounds that have a double bond between phosphorus and nitrogen, as in the chains, rings and cages made from repeating -P(R2)=N- units. In such backbones each phosphorus atom is four-coordinate and carries two substituents, while each nitrogen is two-coordinate. Polyphosphazenes with organic or organo-oxygen side groups are thermally stable, flame-resistant materials, and hexachlorocyclotriphosphazene, (NPCl2)3, is the common starting ring.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "cage"
  ],
  "references": [
    "PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1357 (https://doi.org/10.1351/pac199567081307)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/phosphazenes/"
}