Additional information about the stoichiometry of the complexes is also obtained, as the Benesi–Hilderbrand method assumes a 1:1 stoichiometry between the host and the guest. The data will yield a straight line only if the complex formation also follows a similar 1:1 stoichiometry. A recent example of a similar calculation was done by Sun et al., wherein they titrated ruthenium trisbipyridyl-viologen molecules with cucurbiturils and plotted the relative absorbance of the cucurbit molecules as a function of its total concentration at a specific wavelength. The data nicely fitted a 1:1 binding model with a binding constant of formula_56.