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合成了一系列新型稀土季铵盐混合配体配合物,元素分析结果证明其分子式的通式为:C_(52)H_(108)LnN_9O_6S_1(Ln=Eu,Dy,Er.Yb,Y).研究了该系列配合物的中红外光谱;测定了它们在乙醇溶液中的摩尔电导,证明其属3:1型电解质.用四圆衍射仪测定了铒配合物的晶体结构,属正交晶系,P_(nnn)空间群,晶胞参数:α=1.2470(7)nm,b=1.2934(3)nm,c=2.1112(6)nm,Z=2,R=0.066.中心离子铒被来自2个硝酸根的4个氧原子和4个硫氰酸根的4个氮原子所配位,配位数为8.Er—O键长为0.2386nm;Er—N键长为0.2457nm,饵配位多面体为畸变三角十二面体.
A series of novel complexes of rare earth quaternary ammonium salt ligands were synthesized. The results of elemental analysis showed that the general formula of Cn (52) H_ (108) LnN_9O_6S_1 (Ln = Eu, Dy, Er.Yb, Y) The mid-infrared spectra of the complexes were studied. Their molar conductance in ethanol solution was also determined, indicating that they are 3: 1 type electrolytes. The crystal structure of the erbium complex was determined by the four-circle diffractometer. It belongs to the orthorhombic, Pnn space group with the lattice parameter α = 1.2470 (7) nm and b = 1.2934 (3) nm , C = 2.1112 (6) nm, Z = 2, R = 0.066. The central ion erbium is coordinated by four oxygen atoms from two nitrates and four nitrogen atoms from four thiocyanates with a coordination number of eight. The Er-O bond length is 0.2386 nm, the Er-N bond length is 0.2457 nm, and the bait coordination polyhedron is a distorted triangular dodecahedron.