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UV-Vis spectra of free Ni complex 1 with various amounts of β-CD in a 1 mol dm−3 Na2SO4 aqueous solution. [K2[Ni(mnt)2]] = 1 × 10−3 mol dm−3. Thin arrows indicate spectral changes. The inset shows the curve fitting of plot ΔAbs. vs. [β-CD] at five points.
