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 Au2P3. [1] [2]

Contents

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

Preparation

Monoclinic Au2P3 is produced by direct reaction between metallic gold and red phosphorus at high temperatures over multiple days. The reaction produced only Au2P3, 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 ]

AuCl3 + PH3 → AuP + 3HCl

Properties

Au2P3 is claimed to decompose in air or with H2O. [8] It has a monoclinic crystal structure. [2]

A mixed anion phosphide iodide, Au7P10I, is known to possess a trigonal structure. [2]

References

  1. ↑ R. Prins; M. E. Bussell (2012). "Metal Phosphides: Preparation, Characterization and Catalytic Reactivity". Catalysis Letters. 142 (12): 1413–1436. doi:10.1007/s10562-012-0929-7.
  2. 1 2 3 4 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. Bibcode:1979AcCrB..35..573J. doi:10.1107/S0567740879004180. ISSN   0567-7408.
  3. ↑ Louis, Henry (1894). A Handbook of Gold Milling. Macmillan. p. 40. Retrieved 18 March 2024.
  4. ↑ Ganzenmuüller, Wilhelm; Gedschold, Hermann; Kotowski, Alfons; Gmelin, Leopold (1954). Gold: Lieferung 3 (in German). Springer-Verlag. p. 728. ISBN   978-3-662-12700-1 . Retrieved 8 April 2024.{{cite book}}: ISBN / Date incompatibility (help)
  5. ↑ Ramsay, William (1891). A System of Inorganic Chemistry. J. & A. Churchill. p. 557. 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. Retrieved 8 April 2024.
  7. ↑ Roscoe, Henry Enfield; Schorlemmer, Carl (1898). A Treatise on Chemistry. D. Appleton. p. 413. Retrieved 8 April 2024.
  8. ↑ Comey, Arthur Messenger (1896). A Dictionary of Chemical Solubilities Inorganic: xx, 515 p. Macmillan & Company. p. 174. Retrieved 8 April 2024.
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