Rb{Pr6C2}I12, an Iodide with a 13‐Electron Isolated Octahedral {Pr6C2} Cluster

Abstract

AbstractRb{Pr6(C)2}I12 was obtained from a mixture of RbI, PrI3, Pr and C as black single crystals at elevated temperatures. The black crystals are triclinic, (no. 2), a = 960.1(2), b = 957.0(2), c = 1003.4(2) pm, α = 71.74(2), β = 70.69(2), γ = 72.38(2)°, V = 805.6(3) 106 pm3, Z = 1; R1 = 0.0868 for all 2749 measured independent reflections. Rb{Pr6(C)2}I12 contains {Pr6(C2)} clusters isolated from each other, surrounded by twelve edge‐bridging and six terminal ligands. The [{Pr6(C)2}Ii12Ia6]− units are connected via i‐a/a‐i bridges according to {Pr6C2}Ii6/1Ii‐a6/2Ia‐i6/2 with rubidium ions occupying twelve‐coordinate interstices.