Title: Polycations Stabilised by Borosulfates: [Au3Cl4][B(S2O7)2] and the One‐Dimensional Metal [Au2Cl4][B(S2O7)2](SO3).
Authors: Sutorius, Stefan; van Gerven, David; Olthof, Selina; Rasche, Bertold; Bruns, Jörn
Abstract: (SO4)‐rich silicate analogue borosulfates are able to stabilise cationic cluster‐like and chain‐like aggregates. Single crystals of [Au3Cl4][B(S2O7)2] and [Au2Cl4][B(S2O7)2](SO3) were obtained by solvothermal reaction with SO3, and the 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 is confirmed by polarisation microscopy.
Subjects: METALLIC wire; METALS; SINGLE crystals; ELECTRONIC structure; CRYSTAL structure
Publication: Chemistry - A European Journal, 2022, Vol 28, Issue 22, p1
ISSN: 0947-6539
Publication type: Academic Journal
DOI: 10.1002/chem.202200004

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

Sutorius, Stefan; van Gerven, David; Olthof, Selina; Rasche, Bertold; Bruns, Jörn