新型五配位三角双锥锰配位聚合物的合成与晶体结构  

Synthesis and crystal structures of manganese(Ⅱ) co-ordination compounds of large ring framework with a bidentate betaine derivative

作　　者：刘雪佳[1] 熊瑜[1] 梁璐[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《功能材料》2012年第B08期155-158,共4页Journal of Functional Materials

基　　金：北京航空材料研究院益材基金对本项目的大力支持

摘　　要：在合成新型双羧基配体1,5-二(4-羧基吡啶基)-N-甲基二乙胺,通过与MnCl2反应,合成了锰(Ⅱ)的配位聚合物{[MnL2Cl2].2H2O}n。通过单晶X射线衍射方法进行了表征。晶体结构表明,该配合物属于三斜晶系,结晶于P-1(no.2)空间群,其晶胞参数为:a=0.8348(5)nm、b=1.0775(5)nm、c=1.1535(5)nm、α=90.706(5)°、β=92.465(5)°、γ=91.062(5)°,具有三十六元大环框架,由于缺乏分子之间的强烈相互作用,π-π弱相互作用和氢键决定了这两种化合物在晶格中的堆积模式,为新型五配位三角双锥锰配位聚合物。A new bidentate betaine derivative 1,5-bis（4-carboxypyridinium）-N-methyl-diethylamine （L） was pre- pared and allowed to react with manganese salts leading to the formation of one new manganese coordina-tion compounds {[MnL2C12]·2H20}. which was structurally characterized by IR spectoroscopy, single-crystal X- ray diffraction. The single crystal X-ray diffraction structure analysis of these compounds shows the molecule consists of discrete 36-membered ring structure. Owing to lacking strong intermolecular interactions in these compounds, weak interactions determine their packing pattern in crystalline state, such as n-n stacking and hy- drogen bonding interactions.

关 键 词：双齿甜菜碱衍生物 锰(Ⅱ)配合物 Π-Π堆积 氢键 

分 类 号：O614.71[理学—无机化学]