Difference between revisions of "Sodium manganite"
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| Section3 = {{Chembox Structure | | Section3 = {{Chembox Structure | ||
| − | | Reference =  (α-form)<ref name="alpha">{{citation | title = Zur Kenntnis der NaCl-Strukturfamilie Die Kristallstruktur von NaMnO<sub>2</sub> | first1 = M. | last1 = Jansen | first2 = R. | last2 = Hoppe | journal = Z. Anorg. Allg. Chem. | volume = 399 | issue = 2 | pages = 163–69 | doi = 10.1002/zaac.19733990204}}.</ref> | + | | Reference =  (α-form)<ref name="alpha">{{citation | title = Zur Kenntnis der NaCl-Strukturfamilie Die Kristallstruktur von NaMnO<sub>2</sub> | first1 = M. | last1 = Jansen | first2 = R. | last2 = Hoppe | journal = Z. Anorg. Allg. Chem. | volume = 399 | issue = 2 | pages = 163–69 | doi = 10.1002/zaac.19733990204}}.</ref> |
| Structure = Distorted [[Halite structure|halite (NaCl)]] | | Structure = Distorted [[Halite structure|halite (NaCl)]] | ||
| SpaceGroup = C2/''m'' (No. 12) | | SpaceGroup = C2/''m'' (No. 12) | ||
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}} | }} | ||
| Section4 = {{Chembox Structure | | Section4 = {{Chembox Structure | ||
| − | | Reference =  (β-form)<ref name="beta">{{citation | title = Zur Kenntnis der Oxomanganate(III): Über LiMnO<sub>2</sub> und β-NaMnO<sub>2</sub> | first1 = R. | last1 = Hoppe | first2 = G. | last2 = Brachtel | first3 = M. | last3 = Jansen | journal = Z. Anorg. Allg. Chem. | volume = 417 | issue = 1 | pages = 1–10 | doi = 10.1002/zaac.19754170102}}.</ref> | + | | Reference =  (β-form)<ref name="beta">{{citation | title = Zur Kenntnis der Oxomanganate(III): Über LiMnO<sub>2</sub> und β-NaMnO<sub>2</sub> | first1 = R. | last1 = Hoppe | first2 = G. | last2 = Brachtel | first3 = M. | last3 = Jansen | journal = Z. Anorg. Allg. Chem. | volume = 417 | issue = 1 | pages = 1–10 | doi = 10.1002/zaac.19754170102}}.</ref> |
| Structure = Distorted [[Halite structure|halite (NaCl)]] | | Structure = Distorted [[Halite structure|halite (NaCl)]] | ||
| SpaceGroup = | | SpaceGroup = | ||
Revision as of 13:08, 26 June 2010
| Sodium manganite | |
|---|---|
| IUPAC name | potassium di-µ-oxidotetraoxidodimanganate(6−) |
| Properties | |
| Chemical formula | NaMnO2 |
| Molar mass | 440.46 g mol−1 |
| Structure (α-form)[1] | |
| Space group | C2/m (No. 12) |
| Lattice constant | a = 566.2 pm, b = 286.0 pm, c = 579.9 pm, α = 90°, β = 113.1°, γ = 90° |
| Coordination geometry | Distorted octahedral (Na+, Mn3+) Distorted octahedral (O2−) |
| Structure (β-form)[2] | |
| Coordination geometry | Distorted octahedral (Na+, Mn3+) Distorted octahedral (O2−) |
| Related compounds | |
| Other anions | Sodium manganate Sodium permanganate |
| Other cations | Lithium manganite Potassium manganite |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Sodium manganite, NaMnO2, is a mixed oxide of sodium and manganese(III). It adopts a distorted halite (NaCl) structure in its two crystalline forms, with the MnO6 octahedra being distorted by the Jahn–Teller effect of the d4 Mn3+ cation.[1]
References
- ↑ 1.0 1.1 Jansen, M.; Hoppe, R. Zur Kenntnis der NaCl-Strukturfamilie Die Kristallstruktur von NaMnO2. Z. Anorg. Allg. Chem., 399 (2), 163–69. DOI: 10.1002/zaac.19733990204.
- ↑ Hoppe, R.; Brachtel, G.; Jansen, M. Zur Kenntnis der Oxomanganate(III): Über LiMnO2 und β-NaMnO2. Z. Anorg. Allg. Chem., 417 (1), 1–10. DOI: 10.1002/zaac.19754170102.
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