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Silicon tetraauride
Sign in to saveAurosilane is an inorganic compound with a chemical formula of SiAu4. In this compound, gold acts as an electron acceptor with a valence of –1. Aurosilane has been isolated as a type of gold silane. Its unit cell parameters are a = 5.658, c = 5.605 A. The LUMO and the four Si-Au bonding orbitals of SiAu4 are similar to those of SiH4.
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Aurosilane is an inorganic compound with a chemical formula of SiAu4. In this compound, gold acts as an electron acceptor with a valence of –1. Aurosilane has been isolated as a type of gold silane. Its unit cell parameters are a = 5.658, c = 5.605 A. The LUMO and the four Si-Au bonding orbitals of SiAu4 are similar to those of SiH4.
In addition, silicon can also form other compounds with gold such as Si3Au3.
Excerpted from Wikipedia’s “Silicon tetraauride” article, available under the CC BY-SA 4.0 licence.