Diphosphorus tetraiodide P2I4 is an orange crystalline solid and a versatile reducing agent. The phosphorus atom has an NMR chemical shift of about +100 ppm (downfield of H3PO4) (+108 ppm in CS2). Phosphorus contains a rare oxidation state of +2 in this compound.
This page contains content from the copyrighted Wikipedia article "Diphosphorus tetraiodide"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.
