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Gold phosphide
From Wikipedia, the free encyclopedia
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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]
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 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
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Properties
Au2P3 is claimed to decompose in air or with H2O.[8] It has a monoclinic crystal structure.[2]
Related
A mixed anion phosphide iodide, Au7P10I, is known to possess a trigonal structure.[2]
References
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