Tris[3,6-di-tert-butyl-1-(isoquinolin-1-yl)naphthalen-2-olato-κ²N,O]aluminium(III) toluene sesquisolvate

The central Al^III atom of the title compound, [Al(C₂₇H₂₈NO)₃]·1.5C₇H₈, has octa­hedral geometry in which the three N atoms are arranged in a meridional fashion. One of the toluene solvent mol­ecules is located on a general position, while the second is disordered around a centre of inversion. The ligand mol­ecule has axial chirality, and two of the three ligands in the complex exhibit the same stereochemistry. The three independent chelate rings exhibit significantly different bite angles at the metal atom, with one [83.72 (8)°] notably smaller than the other two [87.22 (8) and 87.13 (8)°]. Calculation of the solid angle covered by the ligands at the metal atom reveals that coverage is greatest for the ligand group with the shortest Al—O bond distance.