摘要
Complexes of the general formula,(Me_4N)_2[(Ln(HDPA)_2(DPA)]·Cl,have been synthesized,where Ln=La,Ce,Pr,Nd,Sm and H_2DPA=dipicolinic acid.Among them,the crystal structure of the La complex has been determined by a four-circle X-ray diffractometer to a final R value of 0.080.The crystal is orthorhombic,space group Pccn with a=1.0321(1),b=1.4951(2),c=2.0766(6)nm,V=3.2044(9)nm^3,and Z=4.The rare earth ion is nine coordinated to forming a tortuous tricapped trigonal prism.
Complexes of the general formula,(Me_4N)_2[(Ln(HDPA)_2(DPA)]·Cl,have been synthesized,where Ln=La,Ce,Pr,Nd,Sm and H_2DPA=dipicolinic acid.Among them,the crystal structure of the La complex has been determined by a four-circle X-ray diffractometer to a final R value of 0.080.The crystal is orthorhombic,space group Pccn with a=1.0321(1),b=1.4951(2),c=2.0766(6)nm,V=3.2044(9)nm^3,and Z=4.The rare earth ion is nine coordinated to forming a tortuous tricapped trigonal prism.
基金
Project supported by the National Natural Science Foundation of China
