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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 被引量:8
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作者 方千荣 朱广山 +7 位作者 辛明红 薛铭 张志杰 姬长征 石鑫 吴刚 田歌 裘式纶 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2004年第8期1425-1427,M010,共4页
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 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. 展开更多
关键词 无机-有机骨架结构 晶体结构 微孔合物
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三维无机-有机杂化微孔化合物[Zn_3(BTC)_2(H_2O)_3]_n的合成与结构 被引量:3
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作者 方千荣 朱广山 +7 位作者 辛明红 张大梁 石鑫 吴刚 田歌 唐璐璐 薛铭 裘式纶 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2004年第6期1016-1018,共3页
The title compound [Zn3(BTC)2(H2O)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 crystal... The title compound [Zn3(BTC)2(H2O)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,Dc=1.51 g/cm 3,Mr=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] 展开更多
关键词 无机-有机骨架结构 晶体结构 微孑L合物
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三维无机-有机杂化微孔化合物Mn_3(BTC)_2(bpy)(EG)(DMF)·(DMF)·1/3(C_2H_5OH)的合成与结构表征 被引量:2
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作者 方千荣 朱广山 +5 位作者 丁红 薛铭 辛明红 吴刚 田歌 裘式纶 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2004年第12期2218-2220,共3页
The title compound Mn 3(BTC) 2(bpy)(EG)(DMF)·(DMF)·1/3(C 2H 5OH)(BTC=1,3,5-benzenetricarboxylic acid, bpy=4,4′-bipyridine, EG=ethylene glycol, DMF=dimethylformamide) was synthesized under mild conditions an... The title compound Mn 3(BTC) 2(bpy)(EG)(DMF)·(DMF)·1/3(C 2H 5OH)(BTC=1,3,5-benzenetricarboxylic acid, bpy=4,4′-bipyridine, EG=ethylene glycol, DMF=dimethylformamide) was synthesized under 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/n with a= 1.637 2(3) nm, b=1.481 4(3) nm, c=1.838 4(4) nm, β=113.70(3)°, V=4.082 5(14) nm 3, Z=4, D c=1.508 Mg/m 3, M r=958.85, μ=1.001 mm -1, F(000)=1 920. R 1=0.098 5, wR 2= 0.218 3. Its structure reveals that Mn(Ⅱ) centers and the carboxylate groups of BTC construct 1D O—C—O—Mn chains. Then, adjacent chains are interlinked by benzene rings of BTC to form a novel 3D architecture. It contains eight-membered rings channels that are about 0.8 nm×0.8 nm viewed along the (101) direction. In addition, it is believed that the bpy acts as both an organic ligand and a structure-directing agent in the synthesis of the title compound. 展开更多
关键词 无机-有机骨架结构 微孔合物 晶体结构
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多面体低聚倍半硅氧烷改性水性聚氨酯木器漆的研究 被引量:5
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作者 韦双颖 李存鲁 +3 位作者 王砥 顾继友 时君友 曹军 《安徽农业科学》 CAS 2014年第36期12807-12809,12813,共4页
一种新型的纳米级有机/无机杂化材料——多面体低聚倍半硅氧烷(POSS)引起了人们的广泛关注。向聚合物体系中加入很少量的POSS便会使复合材料的性能得到明显提高。首先利用顶角-盖帽法合成POSS,用其改性水性聚氨酯木器漆。采用FT-IR、TGA... 一种新型的纳米级有机/无机杂化材料——多面体低聚倍半硅氧烷(POSS)引起了人们的广泛关注。向聚合物体系中加入很少量的POSS便会使复合材料的性能得到明显提高。首先利用顶角-盖帽法合成POSS,用其改性水性聚氨酯木器漆。采用FT-IR、TGA、XRD对复合材料进行表征,并且测量复合材料在室温下接触角。结果表明,POSS能够均匀地分布在漆膜中,形成有机-无机互穿网络结构。此外,POSS的加入提高漆膜的耐热性能,增加涂膜的疏水性。漆膜的机械性能除附着力外均有所提高。 展开更多
关键词 多面体低聚倍半硅氧烷 水性聚氨酯 木器漆 有机-无机杂化结构
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