Fig. 1. Molecular structure of 2 in the solid state as determined by X-ray crystallography. Thermal ellipsoids set at the 50% probability level. Hydrogen atoms omitted and iPr groups shown in wireframe for clarity. Key bond lengths (Å) and angles (°): Al(1)–O(1) 2.0428(15), Cu⋯K 3.0669(6), Cu(1)–Al(1) 2.4076(5), Cu(2)–Al(1) 2.4075(5), Al(1)–Cu(1)–Al(2) 174.88(2).
