Silicon(<scp>i</scp>) chemistry: the NHC-stabilised silicon(<scp>i</scp>) halides Si<sub>2</sub>X<sub>2</sub>(Idipp)<sub>2</sub>(X = Br, I) and the disilicon(<scp>i</scp>)-iodido cation [Si<sub>2</sub>(I)(Idipp)<sub>2</sub>]<sup>+</sup>
Chemical science