Polycations Stabilised by Borosulfates: [Au ₃ Cl ₄ ][B(S ₂ O ₇ ) ₂ ] and the One‐Dimensional Metal [Au ₂ Cl ₄ ][B(S ₂ O ₇ ) ₂ ](SO ₃ )

Single crystals of [Au3Cl4][B(S2O7)2] and [Au2Cl4][B(S2O7)2](SO3) were obtained from a solvothermal reaction with SO3, and their electronic properties were investigated by means of density functional theory–based calculations. [Au3Cl4][B(S2O7)2] exhibits a cluster-like cation, and the cationic gold–chloride strands in [Au2Cl4][B(S2O7)2](SO3) are found to resemble one-dimensional metallic wires; this was further confirmed by polarization microscopy. More information can be found in the Research Article by B. Rasche, J. Bruns et al. (DOI: 10.1002/chem.202200004).