(C<sub>5</sub>H<sub>6.16</sub>N<sub>2</sub>Cl<sub>0.84</sub>)(IO<sub>2</sub>Cl<sub>2</sub>): a birefringent crystal featuring unprecedented (IO<sub>2</sub>Cl<sub>2</sub>)<sup>−</sup> anions and π-conjugated organic cations
Chemical science