Chemistry:Molybdenum diphosphide

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Molybdenum diphosphide
Identifiers
3D model (JSmol)
Properties
MoP2
Molar mass 157.90 g·mol−1
Appearance black crystals
Density 5.35 g/cm3
insoluble
Related compounds
Related compounds
Molybdenum monophosphide, Trimolybdenum phosphide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Tracking categories (test):

Molybdenum diphosphide is a binary inorganic compound of molybdenum metal and phosphorus with the chemical formula MoP
2
.[1][2]

Synthesis

Molybdenum diphosphide can be obtained by heating molybdenum with red phosphorus in a closed tube at 550 °C:

Mo + 2P → MoP
2

Properties

Molybdenum diphosphide forms black crystals of orthorhombic crystal system with space group A21am.[3][4] It is insoluble in water. It decomposes when heated, releasing molybdenum monophosphide and white phosphorus:

4MoP
2
→ 4MoP + P
4

Uses

Molybdenum diphosphide can be used as a catalyst.[5]

References

  1. Mellor, Joseph William (1971) (in en). Supplement to Mellor's Comprehensive Treatise on Inorganic and Theoretical Chemistry: suppl. 1, pt. 1. N. Longmans, Green and Company. p. 345. https://books.google.com/books?id=BBhGAQAAMAAJ&q=%22Molybdenum+diphosphide%22. Retrieved 11 March 2024. 
  2. Yu, Pei; Luo, Fengting; Chen, Shijian (25 May 2024). "Porous MoP2/MoS2 hierarchical nanowires for efficient hydrogen evolution reaction in full pH range". Journal of Alloys and Compounds 985. doi:10.1016/j.jallcom.2024.174024. ISSN 0925-8388. https://www.sciencedirect.com/science/article/abs/pii/S092583882400611X. Retrieved 11 March 2024. 
  3. Donnay, Joseph Désiré Hubert (1973) (in en). Crystal Data: Inorganic compounds. National Bureau of Standards. p. 35. https://books.google.com/books?id=5lVCBwmZsLYC&dq=%22Molybdenum+diphosphide%22&pg=RA3-PA35. Retrieved 11 March 2024. 
  4. (in en) Inorganic Chemistry, Series One: Transition metals, pt. 1. Butterworths. 1972. p. 163. ISBN 978-0-8391-1008-8. https://books.google.com/books?id=nNCwAAAAIAAJ&q=%22Molybdenum+diphosphide%22. Retrieved 11 March 2024. 
  5. Wu, Tianli; Pi, Mingyu; Zhang, Dingke; Chen, Shijian (1 October 2016). "Three-dimensional porous structural MoP2 nanoparticles as a novel and superior catalyst for electrochemical hydrogen evolution". Journal of Power Sources 328: 551–557. doi:10.1016/j.jpowsour.2016.08.050. ISSN 0378-7753. https://www.sciencedirect.com/science/article/abs/pii/S0378775316310497. Retrieved 11 March 2024.