Fig. 6. Molecular structure of 5-Cu in the solid state as determined by X-ray crystallography. Thermal ellipsoids set at the 50% probability level. Hydrogen atoms omitted and Dipp groups shown in wireframe for clarity. Key bond lengths (Å) and angles (°): Cu(1)–C(48): 1.952(4), Al(1)–N(4): 1.908(3), Al(1)–N(3): 1.921(3).
