The hydrothermal reaction of V2O5, Cu(CH3COO)2.H2O, 1,2-diaminopropane and [N(CH3)4]OH yields the novel three-dimensional open-framework solid [(Cu(1,2-pn)2)7-(V16O38(H2O))2].4H2O constructed from the new mixed-valence [V16O38(H2O)]7- clusters interconnected through mu 2-[Cu(1,2-pn)2]2+ groups.

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The hydrothermal reaction of the mixture of K 2 WO 4 ؒ2H 2 O, CuSO 4 ؒ5H 2 O, ethylenediamine and H 2 O at 170 ЊC for 72 h yields purple needle-like crystals of [Cu(enanions with discrete [Cu(en) 2 ] 2ϩ complex cations and crystallization water molecules occupying the interchain positions. In the polymeric chain each paradodecatungstate [H 2 W 12 O 42 ] 10Ϫ cluster is connected to two neighbors through four µ 2 -[Cu(en) 2 ] 2ϩ complex groups. The magnetic measurements show that the compound possesses well-separated Cu 2ϩ centers. A probe reaction of the oxidation of cyclohexane with 760 Torr of O 2 indicates that the compound has good catalytic activity for the reaction.