Hydrothermal synthesis and structural characterization of an organic–inorganic hybrid material: (H2tptz)2[δ-Mo8O26]·2H2O (tptz=2,4,6-tripyridyltriazine)

The reaction of MoO3 and 2,4,6-tripyridyltriazine (tptz) in water at 180°C for 48 h and pH 5.5 produces (H2tptz)2[Mo8O26]·2H2O in 70% yield. The structure is constructed from δ-Mo8O26 4− clusters, H2tptz2+ and H3O+ cations linked through hydrogen bonding into a network. Crystal data: C18H16Mo4N6O14; monoclinic P21/n; a=10.2225(5) Å, b=14.0072(6) Å, c=18.1154(8) Å, β=93.896(1)°, V=2587.9(2) Å3, Z=4, Dcalc=2.372 g cm−3; R1=0.0271 based on 3212 reflections.