Aurosilane

Aurosilane

Names
IUPAC name Tetraaurosilane
Other names Silicon tetraauride
Identifiers
CAS Number	12421-46-4  Y
3D model (JSmol)	Interactive image
InChI InChI=1S/4Au.Si Key: HAWKSDAOUYSVMB-UHFFFAOYSA-N
SMILES [Au][Si]([Au])([Au])[Au]
Properties
Chemical formula	SiAu4
Molar mass	675.159
Related compounds
Other anions	silane
Other cations	caesium auride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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. ^[1] Its unit cell parameters are a=5.658, c=5.605 A. ^[2] The LUMO and the four Si-Au bonding orbitals of SiAu₄ are similar to those of SiH₄. ^[3]

In addition, silicon can also form other compounds with gold such as Si₃Au₃. ^[4]

References

1. Kiran, Boggavarapu; Li, Xi; Zhai, Hua-Jin; Cui, Li-Feng; Wang, Lai-Sheng (2004-04-13). "[SiAu4]: Aurosilane" . Angewandte Chemie International Edition. 43 (16): 2125–2129. doi:10.1002/anie.200353602. ISSN   1433-7851. PMID   15083462.
2. Tasci, Emre S.; Sluiter, Marcel H.F.; Pasturel, Alain; Villars, Pierre (January 2010). "Liquid structure as a guide for phase stability in the solid state: Discovery of a stable compound in the Au–Si alloy system" . Acta Materialia. 58 (2): 449–456. Bibcode:2010AcMat..58..449T. doi:10.1016/j.actamat.2009.09.023. Archived from the original on 2020-02-12. Retrieved 2019-11-19.
3. Atomic Clusters: From Gas Phase to Deposited. Elsevier. 2007-05-24. ISBN   978-0-08-047595-0.
4. Kiran, Boggavarapu; Li, Xi; Zhai, Hua-Jin; Wang, Lai-Sheng (2006). "Gold as hydrogen: Structural and electronic properties and chemical bonding in Si3Au3+/0/-and comparisons to Si3H3+/0/-" (PDF). The Journal of Chemical Physics. 125 (125): 133204. Bibcode:2006JChPh.125m3204K. doi:10.1063/1.2216707. PMID   17029451. Archived from the original (PDF) on 2015-12-25. Retrieved 2023-05-20.

External reading

• Pyykkö, Pekka (October 2002). "Relativity, Gold, Closed-Shell Interactions, and CsAu⋅NH₃". Angewandte Chemie International Edition. 41 (19): 3573–3578. doi:10.1002/1521-3773(20021004)41:19<3573::AID-ANIE3573>3.0.CO;2-R. PMID   12370896.
• Wang, Lai-Sheng (2010). "Covalent gold" (PDF). Physical Chemistry Chemical Physics. 12 (31): 8694–8705. Bibcode:2010PCCP...12.8694W. doi:10.1039/c003886e. PMID   20567749. Archived from the original (PDF) on 2016-03-04. Retrieved 2023-05-20.