T3 supertetrahedral cluster [Mn4Sn6S20]8−: Solvothermal syntheses, crystal structures and photocatalytic properties of Mn(II) chalcogenidostannates

Chalcogenidostannates [Mn(tren)(H2O)][Mn(baen)]3Mn4Sn6S20∙9H2O (1) and [Mn(baen)]2Sn2Se6 (2) were prepared in tren/tatda mixed solvent by the solvothermal method. The T3 cluster [Mn4Sn6S20]8− represents the first ternary anions for the TM-Sn-S phases obtained in the ethylene polyamine solvent and stabilized by TM complex with polyamine ligands. Compound 1 exhibits effective photocatalytic activity in photodegradation of crystal violet.108