The reaction of hexachlorophosphazene, P3N3Cl6, with SO3 leads to the new sulfur nitride oxide S6N2O15. The compound displays an extraordinarily low nitrogen content and exhibits a bicyclic cage structure according to the formulation N{S(O)2O(O)2S}3N, with both nitrogen atoms in trigonal planar coordination of sulfur atoms. Interestingly, the new nitride oxide can be also seen as the anhydride of nitrido‐tris‐sulfuric acid, N(SO3H)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).

For the first time tetravalent palladium is detected, coordinated exclusively by simple oxoanions. Stabilization was achieved by formation of the [Pd(S2 O7 )3 ](2-) complex in which three chelating disulfate groups surround the metal atom. The salt K2 [Pd(S2 O7 )3 ] could only be obtained if the reaction of K2 [PdCl6 ] and neat SO3 was performed in the presence of XeF2 .

Dedicated to the late Professor Rudolf Hoppe on the occasion of his 100th birthday The reaction of NH 4 Cl with SO 3 leads to the chlorosulfate (NH 4 )[SO 3 Cl]. Depending on the reaction temperature two different modifications are obtained. At 80 °C the orthorhombic modification (NH 4 )[SO 3 Cl]-I is obtained (Pbca, Z = 16, a = 1078.03(4), b = 911.55(3), c = 1915.32(6), V m = 70.85 cm 3 /mol), at 120 °C monoclinic (NH 4 )[SO 3 Cl]-II forms (P2 1 /c, Z = 8, a = 846.19(3), b = 590.30(2), c = 852.29(7) pm, β = 100.516(10)°, V m = 68.48 cm 3 /mol). The observed bonds in the chlorosulfate anion are compared to the few know compounds of this type and to theoretical values based on DFT calculations.

The reaction of elemental iodine and SO 3 in a sealed glass ampoule yielded a turquoise‐colored solution. At temperatures below 7 °C, deep red crystals of (I 4 )[S 6 O 19 ] grow. With the addition of B 2 O 3 and pyridine‐SO 3 complex red crystals of (I 4 )[B(S 2 O 7 ) 2 ] 2 can be obtained after heating the mixture to 120 °C. The combination of an (I 4 ) 2+ cation with oxoanions has previously not been observed. Both anions have a significant but different influence on the structural properties of the (I 4 ) 2+ cation.