Niobium pentaiodide: Difference between revisions
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'''Niobium pentaiodide''' is the [[inorganic compound]] with the formula Nb<sub>2</sub>I<sub>10</sub>. It is a yellow, moisture-sensitive, diamagnetic solid. It forms upon heating metallic niobium with [[iodine]].<ref>G. Brauer "Hydrogen, Deuterium, Water" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 2. p. 1315.</ref> Its structure has been verified by single crystal [[X-ray diffraction]], which reveals an [[Bioctahedral molecular geometry|edge-shared bioctahedral structure]], as observed for many pentahalides of Nb and Ta. The bonds to the bridging iodides are 0.3 Å longer than the terminal Nb-I bonds.<ref>Krebs, Bernt; Sinram, Diethard "Darstellung, Struktur und Eigenschaften einer neuen Modifikation von NbI<sub>5</sub> (Preparation, structure and properties of a new modification of NbI<sub>5</sub>" Zeitschrift fǔr Naturforschung, Teil B: Anorganische Chemie, Organische Chemie 1980, volume 35b, pp. 12-16.</ref> |
'''Niobium pentaiodide''' is the [[inorganic compound]] with the formula Nb<sub>2</sub>I<sub>10</sub>. It is a yellow, moisture-sensitive, diamagnetic solid. It forms upon heating metallic niobium with [[iodine]].<ref>G. Brauer "Hydrogen, Deuterium, Water" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 2. p. 1315.</ref> Its structure has been verified by single crystal [[X-ray diffraction]], which reveals an [[Octahedral molecular geometry#Bioctahedral molecular geometry|edge-shared bioctahedral structure]], as observed for many pentahalides of Nb and Ta. The bonds to the bridging iodides are 0.3 Å longer than the terminal Nb-I bonds.<ref>Krebs, Bernt; Sinram, Diethard "Darstellung, Struktur und Eigenschaften einer neuen Modifikation von NbI<sub>5</sub> (Preparation, structure and properties of a new modification of NbI<sub>5</sub>" Zeitschrift fǔr Naturforschung, Teil B: Anorganische Chemie, Organische Chemie 1980, volume 35b, pp. 12-16.</ref> |
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==References== |
==References== |
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Revision as of 13:58, 4 April 2015
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| Names | |
|---|---|
| Other names
Niobium(V) iodide
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| Identifiers | |
| ECHA InfoCard | 100.034.006 |
CompTox Dashboard (EPA)
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| Properties | |
| Nb2I10 | |
| Molar mass | 1475 |
| Appearance | yellow solid |
| Density | 5.30 g/cm3 |
| Melting point | sublimes 543 °C |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Niobium pentaiodide is the inorganic compound with the formula Nb2I10. It is a yellow, moisture-sensitive, diamagnetic solid. It forms upon heating metallic niobium with iodine.[1] Its structure has been verified by single crystal X-ray diffraction, which reveals an edge-shared bioctahedral structure, as observed for many pentahalides of Nb and Ta. The bonds to the bridging iodides are 0.3 Å longer than the terminal Nb-I bonds.[2]
References
- ^ G. Brauer "Hydrogen, Deuterium, Water" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 2. p. 1315.
- ^ Krebs, Bernt; Sinram, Diethard "Darstellung, Struktur und Eigenschaften einer neuen Modifikation von NbI5 (Preparation, structure and properties of a new modification of NbI5" Zeitschrift fǔr Naturforschung, Teil B: Anorganische Chemie, Organische Chemie 1980, volume 35b, pp. 12-16.