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水热条件下合成了新颖的三维网状配位聚合物[Ce4(tzda)6(H2O)10]n(H2tzda为1,3,4-噻二唑-2,5-二硫代乙酸),对其结构进行了红外、元素分析和X射线单晶衍射测定.该配合物属三斜晶系,空间群P1,晶胞参数a=1.372 4(2)nm,b=1.665 3(2)nm,c=1.815 2(3)nm,α=104.270(2)°,β=107.900(2)°,γ=105.653(2)°,Z=2.在晶体结构单元中,存在有4个晶体学独立的Ce(Ⅲ)离子,4个Ce(Ⅲ)离子均与氧原子配位,其中3个为九配位,1个为八配位;配体阴离子tzda2-则展示了4种完全不同的配位模式,并通过这些配位模式将Ce(Ⅲ)离子连接成复杂的三维网状结构.此外,在室温条件下对配合物的荧光性质进行了测定.
A novel three-dimensional network coordination polymer [Ce4 (tzda) 6 (H2O) 10] n (H2tzda is 1,3,4-thiadiazole-2,5-dithioacetic acid) was synthesized under hydrothermal conditions. Its structure was determined by IR, elemental analysis and single crystal X-ray diffraction. The complex belongs to the triclinic system with a space group P1 with a = 1.372 4 (2) nm and b = 1.665 3 (2) nm , c = 1.815 2 (3) nm, α = 104.270 (2) °, β = 107.900 (2) °, γ = 105.653 (2) °, and Z = 2. In the crystal structure unit, there are four crystallographies Independent Ce (Ⅲ) ions and 4 Ce (Ⅲ) ions all coordinated with oxygen atoms, of which three were nine-coordinated and one eight-coordinated. The ligand anions tzda2- showed four completely different Coordination mode, and through these coordination modes, the Ce (Ⅲ) ions are connected into a complex three-dimensional network structure.In addition, the fluorescence properties of the complexes were measured at room temperature.