文摘
The charge-neutral antimonatopolyoxovanadium(IV) cluster [VIV16SbIII4O42(H2O){VIVO(C6H14N2)2}4]·10H2O·C6H14N2 was obtained under solvothermal conditions. The central cluster fragment, [VIV16SbIII4O42], is a derivative of the [V18O42] archetype and is formed by replacing two VO5 polyhedra by two Sb2O5 units. The {V20Sb4} structure expands the {V16Sb4} motif by the addition of four square-pyramidal, terminal VO(1,2-diaminocyclohexane)2 groups. At low temperatures, the magnetic ground state is characterized by four independent S = 1/2 sites.