Arsabenzene
Arsabenzene
Chemical compound
Arsabenzene (IUPAC name: arsinine) is an organoarsenic heterocyclic compound with the chemical formula C5H5As. It belongs to a group of compounds called heteroarenes that have the general formula C5H5E (E= N, P, As, Sb, Bi).[1]
This air sensitive liquid has an onion odor,[2] and it decomposes on heating.[1] Arsabenzene is also an ambidentate ligand that prefers to coordinate using η1(As)- or η6(π)-routes.[3]
The study of arsabenzene and related compounds was an important step in the understanding of compounds that contain multiple bonds between carbon and heavier elements.[4]
The study of heteroarenes was begun by Märkl, with the synthesis of 2,4,6-triphenylphosphabenzene. This is achieved by treating 2,4,6-trisubstituted pyrylium salt with phosphanes.[4] The first derivative of arsabenzene was 9-arsaanthracene prepared by Jutzi and Bickelhaupt.[5]