三维无机-有机杂化微孔化合物Mn_3(BTC)_2(DMF)_4的合成与结构  

Synthesis and Crystal Structure of 3D Inorganic-organic Hybrid Framework Microporous Compound Mn_3(BTC)_2(DMF)_4

作　　者：方千荣[1] 朱广山[1] 辛明红[1] 薛铭[1] 张志杰[1] 姬长征[1] 石鑫[1] 吴刚[1] 田歌[1] 裘式纶[1] 

机构地区：[1]吉林大学化学学院

出　　处：《高等学校化学学报》2004年第8期1425-1427,M010,共4页Chemical Journal of Chinese Universities

基　　金：国家重大基础研究计划"九七三"项目(批准号 :G2 0 0 0 0 775 0 7);国家自然科学基金(批准号 :2 9873 0 17;2 0 10 10 0 4)资助

摘　　要：The title compound Mn 3(BTC) 2(DMF) 4 (BTC=1,3,5-benzenetricarboxylic acid,DMF=dimethyl formamide) was synthesized under the mild conditions and its crystal structure was determined by single crystal X-ray diffraction. The compound crystallizes in the monoclinic system and belongs to space group P2 1/c with a =1.787 6(4) nm, b =1.179 7(2) nm, c =1.884 8(4) nm, β =116.35(3)°, V = 3.561 9(12) nm 3, Z =4, D c=7.413 Mg/m 3, M r=871.43, μ =5.081 mm -1 , F (000)=8 082, R = 0.045 6 , wR =0.106 3. Its structure reveals that each asymmetric unit of the title polymer contains three Mn(Ⅱ) ions,six BTC and four DMF ligands. The coordination of BTC ligands with Mn(Ⅱ) ions forms a 3D infinite framework having helical chains composed with 2 1 axes and about 0.6 nm× 0.8 nm channels along the [100] direction.The title compound [Zn_3(BTC)_2(H_2O)_3]_n(BTC=1,3,5-benzenetricarboxylic acid) was synthesized under mild conditions and its crystal structure was determined by single crystal X-ray diffraction. The compound crystallizes in the cubic system and belongs to space group Fm-3m with a=2.662 6(3) nm ,V=18.877(4) nm 3,Z=16,D_c=1.51 g/cm 3,M_r=664.4,μ=0.198 mm -1 , F(000)=852 ,R=0.062 5,wR=0.129 4. Its structure reveals that the title polymer is composed of dimeric zinc tetracarboxylate units,with a short Zn-Zn internuclear separation of 0.295 0(4) nm. The coordination of BTC ligands with Zn ions forms a 3D infinite framework with about 1.117 4 nm×1.327 4 nm pores along the [001],[100] and [010] direction. [WT5HZ]

关 键 词：无机-有机杂化骨架结构 晶体结构 微孔化合物 

分 类 号：O641[理学—物理化学]