PRIVILEGED DOCUMENT FOR REVIEW PURPOSES ONLY S1 Supplementary Information Di-platinum complexes containing thiolato-urea ligands: structural and anion binding studies Carolina Mendoza, Jordi Benet-Buchholz, Miquel A. Pericás, Ramón Vilar* Table of contents 1 H NMR titration of metallo-receptors with different anions....………………….S1 Job plots for metallo-receptors..……………………….………………………….S14 1 H NMR titration of interaction between dye and metallo-receptor 8 …………..S17 UV/Vis titrations of interaction between dye and metallo-receptor 8……………S18 Job plots for the interaction between methyl red and receptor 8..….…………….S18