Iron oxychloride
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| Iron oxychloride | ||
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| IUPAC name Iron oxychloride | ||
| Identifiers | ||
| CAS number | 56509-17-2  | |
| PubChem | 6453349 | |
| ChemSpider | 4955733 | |
| EC number | 260-233-0 | |
| Jmol-3D images | {{#if:[O][Fe]Cl|Image 1 | |
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| Properties | ||
| Molecular formula | ClFeO | |
| Molar mass | 107.30 g mol−1 | |
| Appearance | Vivid, dark violet, opaque crystals | |
(verify) (what is:  /?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
Iron oxychloride is the inorganic compound with the formula FeOCl. This purple solid adopts a layered structure, akin to that of cadmium chloride.[1] The material slowly hydrolyses in moist air. The solid intercalates electron-donors such as tetrathiafulvalene and even pyridine to give mixed valence charge-transfer salts. Intercalation is accompanied by a marked increase in electrical conductivity and a color change to black.[2]
FeOCl is prepared by heating iron(III) oxide with ferric chloride at 370 °C over the course of several days:[2]
- Fe2O3 + FeCl3 → 3 FeOCl
References
- ↑ M. D. Lind "Refinement of the crystal structure of iron oxychloride" Acta Cryst. (1970). B26, 1058-1062. doi:10.1107/S0567740870003618
- ↑ 2.0 2.1 S. Kikkawa, F. Kanamaru, M. Koizumi "Layered Intercalation Compounds" Inorganic Syntheses, 1983, Volume 22, 86. doi:10.1002/9780470132531.ch17
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