| Names | |
|---|---|
Other names
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| Identifiers | |
3D model (JSmol) | |
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| Properties | |
| Nb(ClO4)5 | |
| Molar mass | 590.16 g/mol |
| Appearance | White crystals |
| Melting point | 70 °C (158 °F; 343 K)[1] (decomposes) |
| Reacts[1] | |
| Related compounds | |
Othercations | Vanadyl perchlorate Tantalum(V) perchlorate |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Niobium perchlorate is a chemical compound with the formulaNb(ClO4)5. It is ahygroscopic, white crystalline solid that readily reacts with moist air or water to produceniobium(V) oxide.[1][2]
Niobium perchlorate is produced from the reaction ofniobium pentachloride and anhydrousperchloric acid:[1]
It decomposes at 70 °C (343 K; 158 °F) toniobyl perchlorate, releasingdichlorine heptoxide:[1]
Niobyl perchlorate further decomposes at 115 °C (388 K; 239 °F) toNbO2ClO4, which decomposes at 220 °C (493 K; 428 °F) to niobium pentoxide.[1]
Perchloratoniobates, such asCs[Nb(ClO4)6] andCs2[Nb(ClO4)7], are produced by the reaction ofperchlorate sources, such ascesium perchlorate and niobium perchlorate, in anhydrous perchloric acid at 0 °C (273 K; 32 °F).[1]
Although the structure of niobium perchlorate has not been elucidated bysingle-crystal X-ray diffraction, the structure has been probed byIR spectroscopy andpowder X-ray diffraction. Niobium perchlorate has both monodentate and bidentate perchlorate ligands.[1]