|
|Section2= |Section3= |Section7= |Section9= }} Diphosphorus tetraiodide is an orange crystalline solid with the formula P2I4. It has been used as a reducing agent in organic chemistry. It is a rare example of a compound with phosphorus in the +2 oxidation state, and can be classified as a subhalide of phosphorus. It is the most stable of the diphosphorus tetrahalides. ==Synthesis and structure== Diphosphorus tetraiodide is easily generated by the disproportionation of phosphorus triiodide in dry ether: :2 PI3 → P2I4 + I2 It can also be obtained by treating phosphorus trichloride and potassium iodide in anhydrous conditions. The compound adopts a centrosymmetric structure with a P-P bond of 2.230 Å.〔Z. Žák, M. Černík "Diphosphorus tetraiodide at 120 K" Acta Crystallographica, Section C: Crystal Structure Communications 1996, vol. C52, pp. 290-1. 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Diphosphorus tetraiodide」の詳細全文を読む スポンサード リンク
|