Thorium heptaphosphide is a binary inorganic compound of thorium metal and phosphorus with the chemical formula ThP7.[2] This is the most phosphorus-rich binary compound of a tetravalent thorium.[3]
| Identifiers | |
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3D model (JSmol)
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| Properties | |
| P7Th | |
| Molar mass | 448.8540 g·mol−1 |
| Appearance | black rod-shaped crystals |
| Density | 4.93 g/cm3[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis
editThorium heptaphosphide can be synthesized from the elements with addition of iodine at 830 K.[3][4]
Properties
editThorium heptaphosphide forms black rod-shaped crystals of orthorhombic crystal system.[1][4] It decomposes to Th2P11 at 650 K in vacuo.[3]
References
edit- ^ a b "mp-28410: ThP7 (Orthorhombic, P2_12_12_1, 19)". Materials Project. Retrieved 17 March 2024.
- ^ Jahrbuch ... der Max-Planck-Gesellschaft zur Förderung der Wissenschaften (in German). Max-Planck-Gesellschaft zur Förderung der Wissenschaften. 1984. p. 599. ISBN 978-3-525-85390-0. Retrieved 17 March 2024.
- ^ a b c Von Schnering, Hans-Georg; Vu, Dong (1 February 1986). "Thorium heptaphosphide ThP7". Journal of the Less Common Metals. 116 (1): 259–270. doi:10.1016/0022-5088(86)90234-1. ISSN 0022-5088. Retrieved 17 March 2024.
- ^ a b Bickel, Michael; Wedemeyer, Horst (17 April 2013). Th Thorium Supplement Volume C 8: Compounds with Si, P, As, Sb, Bi, and Ge. Springer Science & Business Media. p. 101. ISBN 978-3-662-06348-4. Retrieved 17 March 2024.