Abstract

Tetraammine Lithium Cations Stabilizing Phenylsubstituted Zintl‐Anions: The Compound [Li(NH3)4]2[Sn2Ph4]Ruby‐red, brittle single crystals of [Li(NH3)4]2[Sn2Ph4] were synthesized by the reaction of diphenyltin dichloride and metallic lithium in liquid ammonia at −35°C. The structure was determined from X‐ray singlecrystal diffractometer data: Space group, P1, Z = 1, a = 9.462(2) Å, b = 9.727(2) Å, c = 11.232(2) Å, α = 66.22(3)°, β = 85.78(3)°, γ = 61.83(3)°, R1 (F ⩾ 4σF) = 5.13%, wR2 (F02 ⩾ 4σF) = 10.5%, N(F ⩾ 4σF) = 779, N(Var.) = 163.The compound contains to Sb2Ph4 isosteric centres [Sn2Ph4]2− as anions which are connected to rods by lithium cations in distorted tetrahedral coordination by ammonia. These rods are arranged parallel to one another in the b,c‐plane, but stacked along [100].

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