摘要
合成了3,4-二甲基苯甲酸铕与邻菲咯啉的晶体配合物.用X射线衍射法测定了配合物的单晶结构,其组成为Eu2(3,4-DMBA)6(PHEN)2,(3,4-DMBA:3,4-二甲基苯甲酸根;PHEN:邻菲咯啉),属三斜晶系,PT空间群.晶胞参数:a=1.2665(4)nm,b=1.3567(4)nm,c=1.0755(4)nm;α=98.87(3)°,β=108.25(3)°,γ=87.98(2)°.Mr=1559.35,V=1.7340(9)nm3,Z=1,F000=788.00,Dcak=1.493g·cm-3,μ(MoKα)=cm-1,λ(MoKα)=0.071069nm.T=293K.3,4-二甲基苯甲酸根和邻菲咯啉均以双齿配位.中心铕离子配位数为8.2个铕离子通过4个3,4-二甲基苯甲酸基桥联。
The coordination compound of europium 3, 4- dimethylbenzoate with 1, 10-phenanthroline are synthesized. The crystal structure of the title compound was determined by Xray diffraction. It crystallizes in the triclinic system with space group P1, a= 1.2666 (4) nm,b= 1.356 7 (4) nm, c= 1.075 5 (4)nm; α=98.87 (3)°, β= 10825 (3)°, γ=87.98 (2)°. Mr=1 559.55,V= 1.7340 (9) nm3, Z=1, T=293 K, F000 =788.00, Dcalc =1.493 g·cm3, μ(MoKα)= 18.53 cm-1,λ(MoKα)=0.071 069 nm. The europium atom is octa- coordinated with the bidentates of 3, 4-dimethylbenzoate and 1, 10- phenanthroline. The two europiuxn ions are bridged with the four carboxyl groups of the 3, 4- dimethylbenzoate forming a binuclear complex.
出处
《北京师范大学学报(自然科学版)》
CAS
CSCD
北大核心
1998年第3期376-378,共3页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金!29671003
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关键词
二甲基苯甲酸
邻菲咯啉
晶体结构
铕配合物
europium
3
4-dimethylbenzoic acid
1
10- phenanthroline
crystal structure