摘要
利用不同溶剂合成并测定了希土三氯醋酸盐与α，α＇－联吡啶（ｂｉｐｙ）不同比例的配合物（Ⅰ）Ｌａ：ｂｉｐｙ＝１：１，［Ｌａ（ＣＣｌ３ＣＯＯ）３（ｂｉｐｙ）·Ｈ２Ｏ］２和（Ⅱ）Ｔｂ：ｂｉｐｙ＝１：２，Ｔｂ（ＣＣｌ３ＣＯＯ）３（ｂｉｐｙ）２·Ｈ２Ｏ，结构测定表明配合物（Ⅰ）与（Ⅱ）均为三斜晶系，中心离子Ｌａ（或Ｔｂ）具有配位数为８的畸变四方反棱柱多面体；但是配合物（Ⅰ）形成具有对称中心的二聚体．
The complexes of lanthanide trichloroacctate with α,α'-bipyridine(bipy),(Ⅰ) La: bipy =1:1 [La(CCl3COO)3(bipy).H2O]2,and(Ⅱ) Tb:bipy= 1: 2 TI(CCl3,COO),(bipy)2. H2O,were synthesized in the various solvents and determined by four-circle X-ray diffractometcr.Both complexes(Ⅰ)and(Ⅱ)are triclinic system with space group P1. The coordination number of central ion (La or Sm) is 8 with the slightly distortd square antiprism, but the complex(Ⅰ) forms a dimer with a central symmetry.
出处
《无机化学学报》
CSCD
北大核心
1994年第3期247-255,共9页
Chinese Journal of Inorganic Chemistry
关键词
稀土
三氯醋酸盐
联吡啶
晶体结构
lauthanide tricloroacetate α
α'-bipyridine crystal structure complex
