Interaction of α-diimine-chromium(III) complexes with non-ionic surfactant Triton X-100

► α-Diimine-chromium(III) complexes bind to TX-100 mainly by hydrophobic interaction. ► The binding constants increase with the hydrophobicity of the α-diimine ligand. ► The titration curves reveal the presence of premicellar aggregates. ► The model used allows reliable estimation of aggregation number.