Abstract
AbstractThe new tungsten iodide W15I47 was synthesized by reacting tungsten hexacarbonyl with iodine under elevated pressure and temperature conditions. The structure of W15I47 was refined by single‐crystal X‐ray diffraction with the non‐centrosymmetric space group C2 [Z = 2, a = 4088.3(4) pm, b = 952.3(1) pm, c = 1198.5(2) pm, and β = 103.97(1)°]. The characteristic motif in the structure is the square pyramidal tungsten cluster that may be constructed from an octahedral [(W6I8i)I6a]2– cluster by removing one tungsten atom together with its outer iodide ligand to yield [(W5I8i)I5a]n–. The formula W15I47 represents three square pyramidal tungsten clusters with two of them being distinguishable in [(W5I8i)Ia(I3)2a(I3)2/2a–a][(W5I8i)I2a(I3)3/2a–a]2, by different numbers of iodide and tri‐iodide ligands at the cluster vertices.
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