Cyaarside
Chemical compound

Cyaarside, also called cyarside, is the −C≡As anion. Featuring a triple bond between arsenic and carbon, it is the arsenic analogue of cyanide and cyaphide.
01Preparation
An actinide cyaarside complex can be prepared by C−O bond cleavage of the arsaethynolate anion [OCAs]−, the arsenic analogue of cyanate and phosphaethynolate. Reaction of the uranium complex [((Ad,MeArO)3N)UIII(DME)] with one molar equivalent of [Na+[OCAs]−(dioxane)2.5] in the presence of 2.2.2-cryptand results in the formation of a dinuclear, oxo-bridged uranium complex featuring a C≡As ligand.
Sources and credits
This article is adapted from the Wikipedia article “Cyaarside”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Cyaarside structure.svg by LittleWhole, CC BY-SA 4.0
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