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Arsinic acid

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Structure of methylphenylarsinic acid showing intermolecular hydrogen-bonding.

Arsinic acids are organoarsenic compounds with the formula R2AsO2H. They are formally, but not actually, related to arsinic acid, a hypothetical compound of the formula H2AsO2H. Arsinic acids are monoprotic, weak acids. They react with sodium sulfide to give the dithioarinates R2AsS2Na. Arsinic acids are related to phosphinic acids (R2PO2H.).

Well known arsinic acids include diphenylarsinic acid and cacodylic acid, R2AsO2H (R = Ph, Me, respectively).

References

  1. Chan, Eric J.; Edmonds John S.; Kazawa Kozo; Skelton, Brian W.; White, Allan H. (2007). "The Crystal Structure of Methylphenylarsinic Acid: A Contaminant of Rice Plants and Groundwater". Chemistry Letters. 36: 160–161. doi:10.1246/cl.2007.160.
  2. Luminita Silaghi Dumitrescu; Ionel Haiduc; Johannes Weiss (1984). "Preparation and Properties of Some Organotin Dimethyl- and Diphenyldithioarsinates. The Crystal Structure of (CH3)2Sn2". Journal of Organometallic Chemistry. 263 (2): 159–65. doi:10.1016/S0022-328X(00)99179-4.
  3. Henry B.F.Dixon (1996). "The Biochemical Action of Arsonic Acids Especially As Phosphate Analogues". Advances in Inorganic Chemistry. Advances in Inorganic Chemistry. Vol. 44. pp. 191–227. doi:10.1016/S0898-8838(08)60131-2. ISBN 978-0-12-023644-2.
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