“…3,33–36 The approach also proved suitable for tellurido mercurate clusters and a ternary Mn/Sn/Se cluster. 34,37 The methyl groups reduced the negative charge of the cluster from 8− in [Sn 10 O 4 S 20 ] 8− to 4−, but the methyl groups did not increase the solubility in the desired way. As a matter of fact, the commonly used imidazolium-based ionic liquids, in which the two N atoms are functionalized by one methyl group and another alkyl chain of varying length, tend to selectively transfer the methyl group.…”