Au4 S4 Cl20

semiconductor

· Au4 S4 Cl20

Au₄S₄Cl₂₀ is a mixed-valence gold chalcohalide compound combining gold, sulfur, and chlorine in a defined stoichiometric ratio. This material belongs to the family of metal chalcohalides and is primarily of research interest rather than established industrial use, representing an emerging area in solid-state chemistry and materials science. Gold-sulfur-chlorine systems are being explored for their potential electronic, photonic, and catalytic properties, though practical engineering applications remain under investigation.

solid-state researchsemiconductor researchcatalysis developmentphotonic materialsexperimental electronicsmaterials characterization

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.732	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2400	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Au4 S4 Cl20

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control