Ammonium tetraoxoiodate(VII)

During the attempted crystal growth of periodate complexes of lanthanide elements, good quality crystals of ammonium iodate(VII) formed and were used to confirm the structure. The I-O distance was 1.772(3)Å, and the O-I-O angles were 108.4(1) (×4) and 111.6(2)° (×2).

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