Isolation of the 2,1,3-benzothiadiazolidyl radical anion: X-ray structure and properties of a [K(THF)][C6H4N2S] salt

The 2,1,3-benzothiadiazolidyl radical anion I was isolated for the first time in the form of the thermally stable salt [K(THF)][1], which was structurally characterized by X-ray diffraction.