Platinum diphosphide

Platinum diphosphide

Identifiers
CAS Number	12165-68-3^Y
3D model (JSmol)	Interactive image
InChI InChI=1S/2P.Pt Key: KOMIUMNDFGSLAN-UHFFFAOYSA-N
SMILES [Pt]1P=P1
Properties
Chemical formula	P2Pt
Molar mass	257.032 g·mol^−1
Appearance	silvery-white crystals
Melting point	1,500 °C (2,730 °F; 1,770 K)
Solubility in water	insoluble
Related compounds
Related compounds	Osmium diphosphide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Platinum diphosphide is a binary inorganic compound of platinum metal and phosphorus with the chemical formula PtP₂.^[1][2]

Synthesis

Platinum diphosphide can be prepared by passing phosphorus vapors over spongy platinum or prolonged heating of platinum and phosphorus in a vacuum ampoule at 570 °C:^[3][4]

2 Pt + P₄ → 2 PtP₂

Also, by reducing platinum(II) acetylacetonate to platinum nanoparticles and reacting with trioctylphosphine at 370 °C.^[5]

Properties

Platinum diphosphide forms silvery-white crystals of cubic crystal system with the space group Pa3.

Uses

Platinum diphosphide can be used as a semiconductor^[6] and catalyst.^[7]

References

1. Kou, Jiajing; Zhu Chen, Johnny; Gao, Junxian; Zhang, Xiaoben; Zhu, Jie; Ghosh, Arnab; Liu, Wei; Kropf, A. Jeremy; Zemlyanov, Dmitry; Ma, Rui; Guo, Xinwen; Datye, Abhaya K.; Zhang, Guanghui; Guo, Liejin; Miller, Jeffrey T. (5 November 2021). "Structural and Catalytic Properties of Isolated Pt 2+ Sites in Platinum Phosphide (PtP 2 )". ACS Catalysis. 11 (21): 13496–13509. doi:10.1021/acscatal.1c03970. ISSN 2155-5435. OSTI 1868990. Retrieved 12 March 2024.
2. George, P. P.; Gedanken, A.; Gabashvili, A. (12 April 2007). "Synthesis of stable spherical platinum diphosphide, PtP2/carbon nanocomposite by reacting Pt(PPh3)4 at elevated temperature under autogenic pressure". Materials Research Bulletin. 42 (4): 626–632. doi:10.1016/j.materresbull.2006.08.002. ISSN 0025-5408. Retrieved 12 March 2024.
3. Dahl, Eric; Hazell, Rita Grønbæk; Rasmussen, Svend Erik; Heinegård, D.; Balaban, Alexandru T.; Craig, J. Cymerman (1969). "Refined Crystal Structures of PtP2 and FeP2". Acta Chemica Scandinavica. 23: 2677–2684. doi:10.3891/acta.chem.scand.23-2677. Retrieved 12 March 2024.
4. Roscoe, Henry Enfield (1890). A Treatise on Chemistry: The metals. D. Appleton and Company. p. 421. Retrieved 12 March 2024.
5. Henkes, Amanda E.; Vasquez, Yolanda; Schaak, Raymond E. (1 February 2007). "Converting Metals into Phosphides: A General Strategy for the Synthesis of Metal Phosphide Nanocrystals". Journal of the American Chemical Society. 129 (7): 1896–1897. doi:10.1021/ja068502l. ISSN 0002-7863. Retrieved 16 March 2024.
6. George, P.P.; Gedanken, A.; Gabashvili, A. (April 2007). "Synthesis of stable spherical platinum diphosphide, PtP2/carbon nanocomposite by reacting Pt(PPh3)4 at elevated temperature under autogenic pressure". Materials Research Bulletin. 42 (4): 626–632. doi:10.1016/j.materresbull.2006.08.002. Retrieved 12 March 2024.
7. Pu, Zonghua; Amiinu, Ibrahim Saana; Kou, Zongkui; Li, Wenqiang; Mu, Shichun (11 September 2017). "RuP 2 -Based Catalysts with Platinum-like Activity and Higher Durability for the Hydrogen Evolution Reaction at All pH Values". Angewandte Chemie. 129 (38): 11717–11722. doi:10.1002/ange.201704911. Retrieved 12 March 2024.