Hydrothermal synthesis and crystal structure of two new modified polyoxometalates based on {PMo8V6O42} clusters

Two new polyoxometalate-based compounds, [{P^VMo ₅ ^VI Mo ₃ ^V V ₄ ^V V ₂ ^IV O₄₂}{Co^II(H₂O)(2,2′-bpy)₂}₂][Co^II(2,2′-bpy)₃]₂{P^VMo ₇ ^VI Mo^VV ₆ ^V O₄₂} · 6H₂O (2,2′-bpy = 2,2′-bipyridine) (1) and [{P^VMo ₆ ^VI Mo ₂ ^V V ₃ ^V V ₃ ^IV O₄₂}{Cu^II(2,2′-bpy)}{Cu^II(2,2′-bpy)₂}₂] · 3.5H₂O (2), were hydrothermally prepared and structurally characterized by elemental analysis, IR, TG and single crystal X-ray diffraction. The structural determination result shows that compound (1) contains two types of polyoxoanions coexisting with transition metal complex counter-cations in a single phase. In the structure of compound (2), a chain-like structure forms by means of the interconnection of the disordered transition metal-complex fragments decorated on the trisupporting polyoxoanions. Electronic supplementary material Electronic supplementary material is available for this article at and accessible for authorised users.