Chemistry:Gold phosphide

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Gold phosphides are inorganic compounds of gold and phosphorus. The only known gold phosphide is a metastable gold(I) polyphosphide with the formula Au
2P
3.[1][2]

Older texts sometimes refer to a binary auric phosphide AuP;[3][4] this hypothetical compound has not been verified by modern methods such as X-ray crystallography.

Preparation

Monoclinic Au
2P
3 is produced by direct reaction between metallic gold and red phosphorus at high temperatures over multiple days. The reaction produced only Au
2P
3, with no other compounds observed across a wide variety of Au:P atom ratios.[2]

Gold(III) phosphide was purportedly prepared by the direct reaction of spongy gold and phosphorus or by passing phosphine into a solution of auric chloride in ether or alcohol:[5][6][7][better source needed]

AuCl
3 + PH
3 → AuP + 3HCl

Properties

Au
2P
3 is claimed to decompose in air or with H
2O.[8] It has a monoclinic crystal structure.[2]

A mixed anion phosphide iodide, Au
7P
10I, is known to possess a trigonal structure.[2]

References

  1. ↑ R. Prins; M. E. Bussell (2012). "Metal Phosphides: Preparation, Characterization and Catalytic Reactivity" (in en). Catalysis Letters 142 (12): 1413–1436. doi:10.1007/s10562-012-0929-7. 
  2. ↑ 2.0 2.1 2.2 2.3 Jeitschko, W.; Möller, M. H. (1979-03-01). "The crystal structures of Au 2 P 3 and Au 7 P 10 I, polyphosphides with weak Au–Au interactions". Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry 35 (3): 573–579. doi:10.1107/S0567740879004180. ISSN 0567-7408. Bibcode: 1979AcCrB..35..573J. https://scripts.iucr.org/cgi-bin/paper?S0567740879004180. 
  3. ↑ Louis, Henry (1894) (in en). A Handbook of Gold Milling. Macmillan. p. 40. https://books.google.com/books?id=bvUKAQAAIAAJ&dq=gold+phosphide+AuP&pg=PA40. Retrieved 18 March 2024. 
  4. ↑ Ganzenmuüller, Wilhelm; Gedschold, Hermann; Kotowski, Alfons; Gmelin, Leopold (1954) (in de). Gold: Lieferung 3. Springer-Verlag. p. 728. ISBN 978-3-662-12700-1. https://books.google.com/books?id=F4B_BwAAQBAJ&dq=Gold+phosphide+AuP&pg=PA728. Retrieved 8 April 2024. 
  5. ↑ Ramsay, William (1891) (in en). A System of Inorganic Chemistry. J. & A. Churchill. p. 557. https://books.google.com/books?id=Ix5DAAAAIAAJ&dq=gold+phosphide+AuP&pg=PA557. Retrieved 18 March 2024. 
  6. ↑ Cavazzi, A. (1885). "Action of Phisphine on Auric Chloride". Quarterly Journal of the Chemical Society of London 48 (2): 875. https://books.google.com/books?id=VQXzAAAAMAAJ&dq=Gold+phosphide+AuP&pg=PA875. Retrieved 8 April 2024. 
  7. ↑ Roscoe, Henry Enfield; Schorlemmer, Carl (1898) (in en). A Treatise on Chemistry. D. Appleton. p. 413. https://books.google.com/books?id=l5U5AQAAMAAJ&dq=Gold+phosphide+AuP&pg=PA413. Retrieved 8 April 2024. 
  8. ↑ Comey, Arthur Messenger (1896) (in en). A Dictionary of Chemical Solubilities Inorganic: xx, 515 p. Macmillan & Company. p. 174. https://books.google.com/books?id=nZ8IAAAAMAAJ&dq=Gold+phosphide+AuP&pg=PA173. Retrieved 8 April 2024. 



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