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iodine pentoxide : ウィキペディア英語版 | iodine pentoxide
|Section2= |Section3= |Section8= }} Iodine pentoxide is the chemical compound with the formula I2O5. This iodine oxide is the anhydride of iodic acid, and the only stable oxide of iodine. It is produced by dehydrating iodic acid at 200 °C in a stream of dry air:〔 :2HIO3 → I2O5 + H2O == Structure == I2O5 is bent with an I-O-I angle of 139.2°, but the molecule has no mirror plane so its symmetry is not C2v. The terminal I-O distances are around 1.80 Å and the bridging I-O distances are around 1.95 Å.
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