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Polyiodide The polyiodides are a class of polyhalogen anions composed of entirely iodine atoms. The most common and simplest member is the triiodide ion, I3−. Other known, larger polyiodides include ()2−, ()−, ()−, ()2−, ()−, ()2−, ()4−, ()3−, ()2−, ()3−, ()2−, ()4−, ()3−, ()4−, ()4− and ()3−. ==Preparation==
The polyiodides can be made by addition of stoichiometric amounts of I2 to solutions containing I− and I3−, with the presence of large counter-cations to stabilize them. For example, KI3•H2O can be crystallized from a saturated solution of KI when a stoichiometric amount of I2 is added and cooled.〔"Potassium triiodide" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 294.〕
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「Polyiodide」の詳細全文を読む
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