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利用水热方法合成了一种新的基于多氧阴离子[TeMo6O24]6-的三维超分子化合物(C10N2H10)3[TeMo6O24].2H2O.通过元素分析、红外光谱、热重分析、X射线衍射对其进行了表征.结果表明:该化合物属于三斜晶系,P-1空间群;晶胞参数a=9.8859(4)nm,b=10.5430(5)nm,c=11.1311(5)nm,α=112.6440(8)°,β=92.6250(10)°,γ=90.9600(9)°,V=1068.86(8)nm3,Z=1,R1=0.0333,wR2=0.1141.在该化合物中,尽管多氧阴离子间不存在直接的相互作用,但是多氧阴离子[TeMo6O24]6-的桥氧和端氧原子具有较高的电荷密度,与质子化的4,4′-联吡啶形成广泛的氢键作用并构筑了高维的超分子网络.晶体结构分析揭示了4,4′-联吡啶分子对晶体的堆积排列起着重要的作用.
A new three-dimensional supramolecular compound [C10N2H10] 3 [TeMo6O24] .2H2O based on the polyoxoanion [TeMo6O24] 6- was synthesized by hydrothermal method. The elemental analysis, IR, TG and XRD The results show that the compound belongs to the triclinic system with P-1 space group. The unit cell parameters a = 9.8859 (4) nm, b = 10.5430 (5) nm and c = 112.6440 (8) °, β = 92.6250 (10) °, γ = 90.9600 (9) °, V = 1068.86 (8) nm3, Z = 1, R1 = 0.0333, wR2 = 0.1141 In this compound, There is no direct interaction between the anions, but the polyoxoanion [TeMo6O24] 6-bridge oxygen and terminal oxygen atoms have a higher charge density, protonated 4,4’-bipyridine formed a wide range of hydrogen bonding and And construct a high-dimensional supramolecular network.The crystal structure analysis reveals that the 4,4’-dipyridyl molecules play an important role in the crystal packing arrangement.