Three new supramolecular polymers, [（IP）（H2SO4）（H2O）]（1）, [（H2SDC）（BPA）]（2） and [Mn（SDC）（IP）2]n （3）, have been constructed by three modes（rigid IP, rigid SDC ＋ flexible BPA, rigid IP ＋ rigid SDC...Three new supramolecular polymers, [（IP）（H2SO4）（H2O）]（1）, [（H2SDC）（BPA）]（2） and [Mn（SDC）（IP）2]n （3）, have been constructed by three modes（rigid IP, rigid SDC ＋ flexible BPA, rigid IP ＋ rigid SDC）. Polymers 1 and 2 are supramolecular structures, assembled by hydrogen bonds and π···π interactions. X-ray structure analysis of 3 shows waved 1D chains which form a 3D supramolecular network by hydrogen bonds and π···π interactions. Solid-state properties of thermal stability, luminescent properties, and X-ray powder diffractions for these crystalline materials have also been investigated, and polymer 3 is considered to be a good stable luminescence material.展开更多
利用半刚性的三足羧酸配体1,3,5-tris[3-(carboxyphenyl)oxamethyl]-2,4,6-trimethylbenzene acid(H3TBTC)与金属离子自组装成功合成了两例八面体纳米笼构建的金属-有机框架化合物:{[Zn3TBTC2(DMA)(H2O)]3DMA 3H2O}n(1),{[Cd3TBTC2(DMA)...利用半刚性的三足羧酸配体1,3,5-tris[3-(carboxyphenyl)oxamethyl]-2,4,6-trimethylbenzene acid(H3TBTC)与金属离子自组装成功合成了两例八面体纳米笼构建的金属-有机框架化合物:{[Zn3TBTC2(DMA)(H2O)]3DMA 3H2O}n(1),{[Cd3TBTC2(DMA)2(H2O)2]2DMA 2H2O}n(2).TBTC3-配体在化合物中呈现出cis,cis,cis-和cis,trans,trans-两种构型.cis,cis,cis-构型的TBTC3-配体与Zn3(COO)6次级结构基元(secondary building units,SBUs)构筑了畸变的八面体金属-有机纳米笼,因而化合物的结构可以看成是八面体金属-有机纳米笼作为超分子构建单元(supramolecular building blocks,SBBs),在空间上与cis,trans,trans-构型的配体相连,最终形成具有(3,18)-连接的三维无限网络.荧光测试结果表明,化合物1～2的荧光都是基于配体的发射.相对于配体的发射光谱,化合物1～2的发射光谱展现出蓝移的现象.气体吸附测试结果表明,化合物1～2具有选择性吸附二氧化碳的能力.展开更多
基金supported by the National Natural Science Foundation of China(No.21401121)Natural Science Foundation of Shaanxi Province(No.2014JQ2061)Doctor Foundation of Shaanxi Unversity of Science&Technology(BJ14-22)
文摘Three new supramolecular polymers, [（IP）（H2SO4）（H2O）]（1）, [（H2SDC）（BPA）]（2） and [Mn（SDC）（IP）2]n （3）, have been constructed by three modes（rigid IP, rigid SDC ＋ flexible BPA, rigid IP ＋ rigid SDC）. Polymers 1 and 2 are supramolecular structures, assembled by hydrogen bonds and π···π interactions. X-ray structure analysis of 3 shows waved 1D chains which form a 3D supramolecular network by hydrogen bonds and π···π interactions. Solid-state properties of thermal stability, luminescent properties, and X-ray powder diffractions for these crystalline materials have also been investigated, and polymer 3 is considered to be a good stable luminescence material.
文摘利用半刚性的三足羧酸配体1,3,5-tris[3-(carboxyphenyl)oxamethyl]-2,4,6-trimethylbenzene acid(H3TBTC)与金属离子自组装成功合成了两例八面体纳米笼构建的金属-有机框架化合物:{[Zn3TBTC2(DMA)(H2O)]3DMA 3H2O}n(1),{[Cd3TBTC2(DMA)2(H2O)2]2DMA 2H2O}n(2).TBTC3-配体在化合物中呈现出cis,cis,cis-和cis,trans,trans-两种构型.cis,cis,cis-构型的TBTC3-配体与Zn3(COO)6次级结构基元(secondary building units,SBUs)构筑了畸变的八面体金属-有机纳米笼,因而化合物的结构可以看成是八面体金属-有机纳米笼作为超分子构建单元(supramolecular building blocks,SBBs),在空间上与cis,trans,trans-构型的配体相连,最终形成具有(3,18)-连接的三维无限网络.荧光测试结果表明,化合物1～2的荧光都是基于配体的发射.相对于配体的发射光谱,化合物1～2的发射光谱展现出蓝移的现象.气体吸附测试结果表明,化合物1～2具有选择性吸附二氧化碳的能力.
