Molybdenum diarsenide
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| Identifiers | |
|---|---|
3D model (JSmol)
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| Properties | |
| As2Mo | |
| Molar mass | 245.79 g·mol−1 |
| Appearance | black solid[1] |
| Density | 8.07 g·cm−3[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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Molybdenum diarsenide is an arsenide of molybdenum, with the chemical formula MoAs2. Other arsenides of molybdenum are Mo2As3 and Mo5As4.[2][3]
Preparation
[edit]Molybdenum diarsenide can be prepared by the reaction of molybdenum and arsenic at 570 °C.[1]
Properties
[edit]Molybdenum diarsenide is a black solid,[1] and is a superconductor at 0.41 K.[4] It crystallises in the monoclinic crystal system, with space group (No. 12).[5] It has the same structure as molybdenum diphosphide. It is insoluble in concentrated hydrochloric acid or hydrogen peroxide, but easily soluble in nitric acid, hot concentrated sulfuric acid and aqua regia.[6]
References
[edit]- ^ a b c d "Molybdenum Arsenide, MoAs2". arsenic.atomistry.com. Retrieved 2023-07-01.
- ^ Murray, J.J.; Taylor, J.B.; Usner, L. (Aug 1972). "Halogen transport of molybdenum arsenides and other transition metal pnictides". Journal of Crystal Growth. 15 (3): 231–239. Bibcode:1972JCrGr..15..231M. doi:10.1016/0022-0248(72)90123-6.
- ^ Taylor, J. B.; Calvert, L. D.; Hunt, M. R. (1965-11-01). "The Arsenides of Tungsten and Molybdenum: WAs2, W2As3, MoAs2, Mo2As3, and Mo5As4". Canadian Journal of Chemistry. 43 (11): 3045–3051. doi:10.1139/v65-419. ISSN 0008-4042.
- ^ Jane E. Macintyre (1994). Dictionary of Inorganic Compounds, Supplement 2. CRC Press. p. 6. ISBN 978-0-412-49100-9.
- ^ Wang, Jialu; Li, Lin; You, Wei; Wang, Tingting; Cao, Chao; Dai, Jianhui; Li, Yuke (2017-11-15). "Magnetoresistance and robust resistivity plateau in MoAs2". Scientific Reports. 7 (1): 15669. arXiv:1610.08594. Bibcode:2017NatSR...715669W. doi:10.1038/s41598-017-15962-w. ISSN 2045-2322. PMC 5688174. PMID 29142314.
- ^ Reece H. Vallance (1938). J. Newton Friend (ed.). A Text Book Of Inorganic Chemistry Volume VI Part IV Arsenic. Charles Griffin. pp. 71–72.