Discovery of a New Family of Polyoxometalate-Based Hybrids with Improved Catalytic Performances for Selective Sulfoxidation: The Synergy between Classic Heptamolybdate Anions and Complex Cations.

A series of functional cation-regulated isopolymolybdate-based organic-inorganic hybrid compounds, NaH[MoO(CHON)]·10HO (), Na[M(Bis-tris)(HO)][MoO]·10HO [M = Cu, ; Ni, ; Co, ; Zn, ; Bis-tris = 2,2-Bis(hydroxymethyl)-2,2',2″-nitrilotriethanol], and (NH)[M(Bis-tris)(HO)][MoO]·6HO (M = Zn, ; Cu, ), were synthesized and characterized toward advanced molecular catalyst design. Compound is a covalently bonded adduct, and its self-assembly process can be probed by electrospray ionization mass spectrometry (ESI-MS). Compounds - are polyoxometalate (POM)-based hybrids containing classic heptamolybdate anions and complex cations with Bis-tris ligands.