镧系稀土及钇芳香羧酸固体配合物的发光

本文测量了１２个稀土及钇（３价离子）苯多羧酸和杂环羧酸固体配合物的激发光谱和荧光光谱。讨论了不同配体对同一稀土离子发光影响和同一配体对不同稀土离子发光作用。结果指出苯多羧酸配体对Ｔｂ￣（３＋）、Ｅｕ￣（３＋）等四个稀土离于有较明显的能量传递作用。这作用与镧系离子间呈现双峰变化关系。     

STUDY ON SYNTHESIS,CHARACTERIZATION AND STRUCTURE OF A NEW RARE EARTH COORDINATION COMPOUND WITH BENZOIC ACID

In this paper,a new rare earth benzoate coordination compound,[TbL_3(HL)(H_2O)]_2(HL=C_7H_6O_2=benzoic acid) is synthesized and characterized by elemental analysis DTA,TG,DTC,and IRspectra.The title compound crystallizes in triclinic,space.group P with a=9.148(1),b=11.460(2),c=13.506(2);α=112.76(1),β=91.83(1),γ=91.99(1)°;Z=1;V=1303.3.The final R factor is0.0235.The rare earth ion is nine-coordinated to form a distorted monocapped square antiprism.