Trithioarsenite Explained

Trithioarsenite, also called sulfarsenite, is the trianion . It is a pyramidal anion, as is typical of other compounds. It is generated by treatment of with a sulfide:

A fundamental synthetic trithioarsenite is, which features the pyramidal .^[1]

Thioarsenites are components of many sulfosalt minerals. An example is relatively common mineral proustite,,^{[2] [3] [4]} which is silver(I) trithioarsenite.

References

1. 10.1107/S0567740876009898 . Structure cristalline de l'orthotrithioarsénite trisodique Na₃AsS₃ . 1976 . Palazzi . M. . Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry . 32 . 12 . 3175–3177 .
2. http://www.mindat.org Mindat
3. http://www.webmineral.com Webmineral
4. Trevelyan B. 1969: The electro-optic effect in proustite. Optical and Quantum Electronics, 1(1), pp. 1969; https://doi.org/10.1007%2FBF01476785