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以4-羟基肉桂酸(Hhca),1,10-邻菲啰啉(phen)与硫酸镉(CdSO4.8H2O)反应得到了一个结构新颖的单核配合物[Cd(phen)3]SO4.3(Hhca),元素分析、红外光谱、热重分析和单晶结构衍射等测试表征了它的结构,晶体结构分析表明它属于三方晶系,空间群R3 c,a=b=1.906 79(2)nm,c=2.542 8(3)nm,γ=120°,V=8.006 5(1)nm3,Z=6,Dc=1.545 g/cm3,F(000)=3 816,μ=62.7 mm-1,R=0.037 3,wR=0.083 7,GOF=1.180.在该配合物中,Cd2+与phen形成六配位的配位构型,与Hhca并没有配位.Hhca与阴离子硫酸根通过氢键作用,使配合物形成了三维超分子孔洞结构,[Cd(phen)3]2+位于孔洞之中.更有意思的是,配合物的固体荧光谱在450~650nm展示了较强的宽峰,类似于白光发射峰,这可能与配合物的空间结构及氢键作用相关.
A novel mononuclear complex [Cd (phen) 3] SO4.3 was synthesized by the reaction of 4-hydroxycinnamic acid (Hhca), 1,10-phenanthroline and CdSO4.8H2O (Hhca), elemental analysis, infrared spectroscopy, thermogravimetric analysis and single crystal structure diffraction characterization of its structure, the crystal structure analysis shows that it belongs to the tripartite crystal system, space group R3 c, a = b = 1.906 79 (2) (3) nm, γ = 120 °, V = 8.006 5 (1) nm3, Z = 6, Dc = 1.545 g / cm3, F (000) = 3 816, μ = 62.7 mm -1 , R = 0.0373, wR = 0.083 7, GOF = 1.180. In this complex, Cd2 + forms a hexacoordination coordination with phen and has no coordination with Hhca. Hhca interacts with anionic sulfate via hydrogen bonding (Cd (phen) 3] 2+ was located in the pores.More interestingly, the solid state fluorescence spectrum of the complex exhibited a strong broad peak at 450-650 nm, which was similar to that of In white light emission peak, which may be related to the spatial structure of the complex and hydrogen bonding.