一个新型碗状双核配合物的合成及结构表征  

Synthesis and Crystal Structure of Novel Bowl-Like Dinuclear Complex

作　　者：张正华[1] 樊健[1] 岡村高明[2] 孙为银[1] 上山寭一[2] 

机构地区：[1]南京大学配位化学国家重点实验室,配位化学研究所,南京210093 [2]日本大阪大学

出　　处：《无机化学学报》2004年第10期1137-1140,共4页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目(No.20231020)。

摘　　要：采用挥发法,在无水条件下合成了一个新型具有碗状结构的双核稀土金属配合物:[Y2(L)(HL)(NO3)6(HCOO)]·3CH3OH[L=1,3,5-三(1-咪唑基鄄亚甲基)-2,4,6-三甲基苯](1)。并通过元素分析、FT-IR、电喷雾质谱及X鄄射线单晶衍射对其进行了表征。结构分析表明该化合物属于正交晶系,空间群为Pnnm,晶胞参数为a=1.95242(15)nm,b=1.87528(19)nm,c=1.68225(15)nm,晶胞体积V=6.1593(10)nm3,Z=4。在化合物1中,两个独立的Y髥均为九配位,并通过甲酸根桥联,而两个配体采用不同的构象作为二齿配体参与与Y髥的配位,一个为cis,cis,cis-构象,另一个为cis,trans,trans-构象。A novel bowl-like dinuclear complex [Y-2(L)(HL)(NO3)(6)(HCOO)].3CH(3)OH [L=1,3,5-tris(imidazole-1-ylmethyl)2,4,6-trimethylbenzene] (1) was synthesized by slow evaporation in the desiccator. The complex has been characterized by elementary analysis, FT-IR, electrospray mass spectrometry and X-ray single crystal diffraction. It reveals that the complex is orthorhombic with Pnnm space group, a=1.952 42(15) nm, b=1.875 28 (19) nm, c=1.682 25 (15) nm, V=6.159 3(10) nm(3), Z=4. In complex 1, two independent Y(III) are both nine-coordinated and bridged by formate, and two ligands coordinating as bidentate ligand to Y(III) adopt different confirmations, one is cis, cis, cis, the other is cis, trans, trans. CCDC: 240130.

关 键 词：碗状结构 双核配合物 合成 钇配合物 元素分析 电喷雾质谱 X-射线单晶衍射 超分子体系 三角架配体 

分 类 号：O614.322[理学—无机化学] O641.4[理学—化学]