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Supramolecular Network Obtained from the Interaction of Dihydrophosphate Anions and Thiourea-based Receptors 被引量:1
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作者 胡金艳 孙会民 +2 位作者 葛荣琛 闫纪桐 黄苇苇 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2016年第8期1283-1288,共6页
Two crystals of receptor 1, C(42)H(52)N(10)O4S2(anthracene-9,10-dicarbaldehyde bis-(phenyl-semithiocarbazone)) and-1-H2PO4, C(68)H(114)N(10)O(10)P2S2 were obtained at room temperature successfully, a... Two crystals of receptor 1, C(42)H(52)N(10)O4S2(anthracene-9,10-dicarbaldehyde bis-(phenyl-semithiocarbazone)) and-1-H2PO4, C(68)H(114)N(10)O(10)P2S2 were obtained at room temperature successfully, and their structures were characterized by X-ray crystallography diffraction. X-ray diffraction reveals that, receptor 1 crystallizes in monoclinic, space group P21/c, with a = 9.487(3),b = 20.674(6), c = 11.821(4)A, β = 113.416(8)o, Mr = 825.06, V = 2127.5(12) A^3, Z = 2, Dc = 1.288g/cm^3, μ = 0.18 mm^-1, F(000) = 876, MoK α radiation(λ = 0.71073 A), the final R = 0.0472 and wR = 0.0930. A total of 3758 unique reflections were collected, of which 3313 with I 〉 2σ(I) were observed. Compound 1-H2PO4^-crystallizes in triclinic, space group P21/n, with a = 8.767(1), b =13.6190(15), c = 16.615(2) ?, α = 98.727(14), β = 103.061(14), γ = 91.382(16)°, Mr = 1357.75, V =1906.6(4) A^3, Z = 1, Dc = 1.183 g/cm^3, μ = 0.17 mm-(-1), F(000) = 734, MoK α radiation(λ = 0.71073?), the final R = 0.0769 and wR = 0.1884. A total of 6699 unique reflections were collected, of which 2989 with I 〉 2σ(I) were observed. As it was observed in the crystal structure of 1-H2PO4^-, 1bound H2PO4^-at a 1:2 ratio by intermolecular interaction of N-H···O hydrogen bond obviously.Another interesting feature was that H2PO4--groups assembled chains themselves via intramolecular hydrogen bond O-H···O and connected the 1 molecules together through the interaction of H-bonds,which improved the planarity of 1 and increased the stability of the entire structure. 展开更多
关键词 supramolecular network crystal structure thiourea hydrogen bond
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New Supramolecular Networks Based on Paratungstate with N-Donor Bridging Ligands
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作者 YAO Wei WANG Xin +3 位作者 XIE Hong-wei MA Rui-ying YU Yang LI Yang-guang 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2012年第3期382-386,共5页
Three new suprarnolecular networks based on paratungstate and N-donor bridging ligands, [H2bpmp]2,5H[H2W12O40]·2H20(1), [H2(bpp)]2[H(py-CH3)]0.25 [H(py-C2Hs)]0.25H1.5[H2W12O40]·4H2O(2) and [H2pip]3... Three new suprarnolecular networks based on paratungstate and N-donor bridging ligands, [H2bpmp]2,5H[H2W12O40]·2H20(1), [H2(bpp)]2[H(py-CH3)]0.25 [H(py-C2Hs)]0.25H1.5[H2W12O40]·4H2O(2) and [H2pip]3[H2W12O40](3)[bpmp=N,N'-bis(4-pyridylmethyl)piperazine; bpp=l,3-bis(4-pyridyl)propane; py=pyridine; pip=piperazine] were prepared by the hydrothermal synthesis and characterized by elemental analysis, infrared(IR), thermogravimetric(TG) analysis and single-crystal X-ray diffraction(XRD). All the compounds show high-dimen- sional suprarnolecular networks based on [H2W12O40]^6- and the protonated N-donor ligands via the N-H.…O-W hydrogen bonds and/or π…πstacking interactions. Their luminescent properties were investigated. 展开更多
关键词 POLYOXOMETALATE Paratungstate supramolecular network Luminescent property
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A Novel 3D Supramolecular Network Constructed from [Cu(4,4'-bipyridine)(O_2CMe)_2]_2 Molecular Ladders by Hydrogen Bonding
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作者 YANG E WANG Xiao-Qin QIN Ye-Yan 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2006年第11期1365-1368,共4页
The title complex, {[Cu2(4,4'-bipyridine)2(μ-O2CMe)2(O2CMe)2],H2O}n 1, was synthesized and structurally characterized by X-ray crystallography. It crystallizes in monoclinic, space group C2/c with a = 13.4474... The title complex, {[Cu2(4,4'-bipyridine)2(μ-O2CMe)2(O2CMe)2],H2O}n 1, was synthesized and structurally characterized by X-ray crystallography. It crystallizes in monoclinic, space group C2/c with a = 13.4474(5), b = 11.7566(2), c = 19.5380(6)A, β = 92.930(2)°, V = 3084.84(16) A^3, Z = 4, Cu2C28N409H30, Mr = 693.64, Dc = 1.494 g/cm^3, F(000) = 1424 and μ(MoKα) = 1.436 mm^-1. With the use of 2062 observed reflections (I 〉 2σ(I)), the structure was refined to R = 0.0769 and wR = 0.2154. In complex 1, the dimeric copper acetate units are linked through 4,4’-bipyridine to yield ID molecular ladders. These ladders are connected via O-H…O hydrogen bonds to generate 2D layers, which are further linked through C-H…O hydrogen bonds to give a 3D supramolecular network. 展开更多
关键词 molecular ladder dimeric copper acetate 3D supramolecular network
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A New 3D Supramolecular Network Formed by [Zn_3(2,6-Pyridinedicarboxylate)_3Cl_4]^(4-)and 4-Carboxypyridinium
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作者 杨娥 康遥 +1 位作者 王小琴 刘子生 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2010年第5期774-778,共5页
A new compound [Zn3(C7NO4H3)3Cl4]·[C6NO2H6]4·4H2O (I) has been synthesized and structurally characterized by X-ray crystallography.It crystallizes in monoclinic,space group C2/c with a=16.9018(14),b=12... A new compound [Zn3(C7NO4H3)3Cl4]·[C6NO2H6]4·4H2O (I) has been synthesized and structurally characterized by X-ray crystallography.It crystallizes in monoclinic,space group C2/c with a=16.9018(14),b=12.6902(10),c=25.1170(2),β=90.54°,V=5387.0(8)3,Z=4,Zn3C45H41Cl4N7O24,Mr=1401.76,Dc=1.728 g/cm3,F(000)=2840,μ(MoKa)=1.615 mm-1,the R= 0.0758 and wR=0.2060 for 3468 observed reflections (I 〉 2σ(I)).Analysis of single-crystal X-ray diffraction data shows that compound I displays an interesting example of 3D supramolecular networks with perfect neutral and ionic hydrogen bonding array. 展开更多
关键词 crystal structure 3D supramolecular network hydrogen bonding array
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Hydrogen-Bonded Supramolecular Network Triggers High-Efficiency Blue Room-Temperature Phosphorescence
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作者 Sen Wu Tao Wang Eli Zysman-Colman 《CCS Chemistry》 CSCD 2024年第11期2727-2740,共14页
Hydrogen bonding has been employed to suppressnonradiative decay in organic compounds that showroom-temperature phosphorescence (RTP);however, the small number of structurally diverse examplesmakes it unclear how gene... Hydrogen bonding has been employed to suppressnonradiative decay in organic compounds that showroom-temperature phosphorescence (RTP);however, the small number of structurally diverse examplesmakes it unclear how general this strategy is to turnon RTP. In this study, we report highly efficient blueRTP from 4,4′,4′′-nitrilotribenzoic acid (TPA-CO_(2)H)in five structurally and chemically distinct hydrogenbonded supramolecular networks. In doped films inpoly(vinyl alcohol) (PVA), the phosphorescencequantum yield and lifetime (ΦPh and τPh) reach 52%and 275 ms. Boric acid can also be used to turn onRTP, and the performance changes significantlywhen the sample is heated beyond the dehydrationtemperature of this host where there is a 14-foldenhancement in the ΦPh after heat treatment. BlueRTP similar to that observed in PVA was also observed using granulated sugar, gelatine, and paper ashost matrices. This work elucidates for the first timethe role and the generality of hydrogen bonding inactivating efficient blue RTP and examines how thechoice of hydrogen bonding host influences RTPperformance. We further demonstrate how the emission color can be tuned by codoping the films withRhodamine 6G. 展开更多
关键词 room-temperature phosphorescence blue phosphorescence 4 4′ 4′′-nitrilotribenzoic acid hydrogen bonding supramolecular networks
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Self-assembled supramolecular networks at interfaces: Molecular immobilization and recognition using nanoporous templates 被引量:4
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作者 LI Min ZENG QingDao WANG Chen 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2011年第10期1739-1748,共10页
In this review a series of organic-based open porous networks are discussed, in which hydrogen bonds play an important role in network formation. Using these open networks as molecular templates: 1) a wealth of functi... In this review a series of organic-based open porous networks are discussed, in which hydrogen bonds play an important role in network formation. Using these open networks as molecular templates: 1) a wealth of functional guest species can be immo- bilized; 2) fullerene molecules can be separated and recognized; 3) photoisomerization reactions can be observed by STM; 4) 1D molecular arrays can be constructed; and 5) heterogeneous bilayer structures can be formed. It is envisioned that these su- pramolecular networks might be developed into a new family of useful soft frameworks for studies toward shape-selective ca- talysis, molecular recognition and host-guest supramolecular chemistry. 展开更多
关键词 supramolecular networks molecular recognition scanning tunneling microscopy SELF-ASSEMBLY
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Crystal structure of a novel two-dimensional supramolecular network based on polyoxoanion and yttrium~Ⅲcoordination cation 被引量:1
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作者 HE Shuiyang,PENG Ke,NING Wei,WANG Daqi & SHI Qizhen Department of Chemistry,Northwest University and Shaanxi Key Laboratory of Physico-Inorganic Chemistry,Xi’an 710069,China College of Chemistry and Chemical Engineering,Liaocheng University,Liaocheng 252059,China 《Science China Chemistry》 SCIE EI CAS 2005年第z1期9-13,共5页
A novel compound (NH4)2Y(H2O)8[PMo10V2O40]·10H2O has been prepared in an aqueous solution and characterized by elemental analysis, IR, and TG-DTG analysis. X-ray diffraction analysis was carried out on (NH4)2Y(H2... A novel compound (NH4)2Y(H2O)8[PMo10V2O40]·10H2O has been prepared in an aqueous solution and characterized by elemental analysis, IR, and TG-DTG analysis. X-ray diffraction analysis was carried out on (NH4)2Y(H2O)8 [PMo10V2O40]·10H2O single crystal, which crystallizes in the monoclinic system of a space group P21/C with a=0.9871(3) nm,b=1.5424(5) nm,c=2.7924(9) nm,β=94.183(5)°and Z=2. In the compound, a two-dimensional network is constructed by the PMo10V2O405- anion and the Y(H2O)83+ cation building blocks via hydrogen bonding exhibiting the porous structure. 展开更多
关键词 crystal structure polyoxoanion yttrium supramolecular network.
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One-pot synthesis of network supported catalyst using supramolecular gel as template 被引量:2
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作者 Yong Liang Li Ming Tang Yu Xia Kai Chen Bo Tian Li Xin Jin 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第8期991-994,共4页
A simple and general strategy is described for preparing network supported catalyst through a one-pot synthetic procedure using supramolecular gel as template.This procedure directly attaches ligand to support during ... A simple and general strategy is described for preparing network supported catalyst through a one-pot synthetic procedure using supramolecular gel as template.This procedure directly attaches ligand to support during fabricating the support.Using this strategy,supported CuBr/di-(2-picolyl) amine catalyst with U-shaped fibrillar network was prepared and used in atom transfer radical polymerization of methyl methacrylate.XPS and SEM characterization of the catalyst revealed homogeneous distribution of ligand,sufficient reactive sites,adequate mechanical strength and macroporosity.The polymerization results demonstrated high activity and reusability of such catalyst.This strategy might be extended to other supported catalysts used in column reactors. 展开更多
关键词 One-pot synthesis network supported catalyst supramolecular gel Atom transfer radical polymerization
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Bolstering the Mechanical Robustness of Supramolecular Polymer Network by Mechanical Bond
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作者 Yuan-Hao Wang Jing-Xi Deng +4 位作者 Jun Zhao Yi Ding Li Yang Zhao-Ming Zhang Xu-Zhou Yan 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2024年第10期1536-1544,I0012,共10页
Supramolecular polymer networks(SPNs)are celebrated for their dynamic nature,yet they often exhibit inadequate mechanical properties.Thus far,the quest to bolster the mechanical resilience of SPNs while preserving the... Supramolecular polymer networks(SPNs)are celebrated for their dynamic nature,yet they often exhibit inadequate mechanical properties.Thus far,the quest to bolster the mechanical resilience of SPNs while preserving their dynamic character presents a formidable challenge.Herein,we introduce[2]rotaxane into SPN to serve as another cross-link,which could effectively enhance the mechanical robustness of the polymer network without losing the dynamic properties.Compared with SPN,the dually cross-linked network(DPN)demonstrates superior breaking strength,Young’s modulus,puncture force and toughness,underscoring its superior robustness.Furthermore,the cyclic tensile tests reveal that the energy dissipation capacity of DPN rivals,and in some cases surpasses,that of SPN,owing to the efficient energy dissipation pathway facilitated by[2]rotaxane.In addition,benefiting from stable topological structure of[2]rotaxane,DPN exhibits accelerated recovery from deformation,indicating superior elasticity compared to SPN.This strategy elevates the performance of SPNs across multiple metrics,presenting a promising avenue for the development of high-performance dynamic materials. 展开更多
关键词 Rotaxane cross-links Dually cross-linked network supramolecular polymer network Host-guest recognition Dynamic materials
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一种镍有机膦酸盐的合成、结构及表征
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作者 杨益 王磊 +3 位作者 王佳崎 王汉 翁果果 徐国海 《赣南师范大学学报》 2024年第6期55-60,共6页
通过Ni(NO_(3))_(2)·6H_(2)O、4,4’-联苯二膦酸(H_(4)L)和1,10-菲啰啉(Phen)混合,用氢氧化钠调节pH值,在水溶液中反应得到一个有机膦酸镍盐.X-射线单晶衍射结果表明该晶体结晶于单斜晶系,P2_(1)/n空间群.化合物1的最小不对称单元... 通过Ni(NO_(3))_(2)·6H_(2)O、4,4’-联苯二膦酸(H_(4)L)和1,10-菲啰啉(Phen)混合,用氢氧化钠调节pH值,在水溶液中反应得到一个有机膦酸镍盐.X-射线单晶衍射结果表明该晶体结晶于单斜晶系,P2_(1)/n空间群.化合物1的最小不对称单元包含1个单核金属Ni^(2+)离子、3个Phen分子、1个脱去两个质子的H4L分子以及10个游离的晶格水分子.化合物1的分子式为{[Ni(Phen)_(3)](H_(4)L)}·10H2O.化合物1结构中由于填充大量游离水分子而存在丰富的氢键作用,晶格水分子之间以及晶格水分子与膦酸基团间均通过氢键相互作用连接,进而形成了三维超分子网络.此外,化合物1的结构也被红外光谱、X-射线粉末衍射以及热重分析表征手段证实. 展开更多
关键词 膦酸盐 晶体结构 氢键 超分子网络
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全氟磺酸树脂和三乙烯基二胺盐的两性离子共混膜的制备及性能研究
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作者 王晓莉 郭晋婷 +1 位作者 苟瑞婷 何振峰 《现代化工》 CAS CSCD 北大核心 2024年第2期150-155,161,共7页
离子交换膜作为全钒液流电池(VRB)的核心组成,起到传输离子和阻隔钒离子渗透的作用。将全氟磺酸树脂(PFSA)和三乙烯基二胺(DABCO)盐离子化合物共混,对全氟磺酸树脂进行改性制备了两性离子共混膜。以DABCO-PFSA共混膜为研究基础,采用阴... 离子交换膜作为全钒液流电池(VRB)的核心组成,起到传输离子和阻隔钒离子渗透的作用。将全氟磺酸树脂(PFSA)和三乙烯基二胺(DABCO)盐离子化合物共混,对全氟磺酸树脂进行改性制备了两性离子共混膜。以DABCO-PFSA共混膜为研究基础,采用阴阳离子非共价相互作用的超分子交联方法制备的共混膜可以有效提高膜的综合性能。通过优化共混膜的二组分结构差异合成了聚阳离子PDABCO,并与PFSA共混,聚合物链间超分子交联赋予膜良好的机械性能和稳定性,降低了钒离子渗透,其中PDABCO-PFSA-7.5%膜的钒离子渗透率达到0.25×10^(-6)cm^(2)/min。在VRB测试中,当电流密度为160 mA/cm^(2)时,PDABCO-PFSA-7.5%膜的库伦效率(CE)达到88.43%。 展开更多
关键词 两性离子共混膜 VRB 钒离子渗透 超分子交联网络
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Synthesis, Crystal Structure and Characterization of a One-dimensional Supramolecular Rare Earth Complex of N-(6-(4-Methylpyridinyl))ketoacetamide
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作者 XU Li TANG Kuan-Zhen MA Yu-Fei TANG Yu TAN Min-Yu 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2007年第8期877-882,共6页
A one-dimensional (1D) supramolecular rare earth complex [Nd(NO3)2L2-(C3H6O)][NdL(NO3)4]} (L=N-(6-(4-methylpyridinyl))ketoacetamide) has been prepared and characterized by elemental analysis, IR and elec... A one-dimensional (1D) supramolecular rare earth complex [Nd(NO3)2L2-(C3H6O)][NdL(NO3)4]} (L=N-(6-(4-methylpyridinyl))ketoacetamide) has been prepared and characterized by elemental analysis, IR and electronic spectroscopy, and single-crystal X-ray diffraction. The crystal crystallizes in the triclinic system, space group P1^- with a=0.9146(6), b=1.2581(8), c=2.2316(14) nm, α=99.352(10),β=97.209(9), γ=103.935(9)°, V=2.422(3) nm3, Dc=1.776 g/cm^3, C33H42N12Nd2O25, Mr=1295.27, Z=2, F(000)=1288, μ=2.217 mm-1, R=0.0508and wR=0.1046 for 5173 observed reflections (I 〉 2σ(I)). In the structure of the title complex,one-dimensional supramolecular double-chains are formed by intermolecular hydrogen bonding interactions. 展开更多
关键词 crystal structure rare earth nitrate Β-DIKETONE COMPLEX supramolecular network
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Three 3D M~Ⅱ (M = Co, Ni, Zn) Supramolecular Polymers Constructed from O-vanillic Acid: Synthesis, Crystal Structure and TGA
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作者 张美丽 幸福刚 王增林 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2010年第4期592-598,共7页
The title compounds, [Co(H2O)6](OVA)2·2H2O 1, [Ni(H2O)6](OVA)2·2H2O 2 and [Zn(OVA)2·2H2O] 3 (HOVA = o-vanillic acid = 2-hydroxy-3-methoxybenzoate), were synthesized and characterized by sing... The title compounds, [Co(H2O)6](OVA)2·2H2O 1, [Ni(H2O)6](OVA)2·2H2O 2 and [Zn(OVA)2·2H2O] 3 (HOVA = o-vanillic acid = 2-hydroxy-3-methoxybenzoate), were synthesized and characterized by single-crystal X-ray diffraction, elemental analysis, IR and TGA. Compounds 1 and 2 are both of triclinic with space group P1. The metal atom coordinated by six water molecules displays a slightly distorted octahedral configuration. Interestingly, the carboxyl group from HOVA ligand does not coordinate to the metal atom. Correspondingly, compound 3 belongs to the monoclinic system, space group C2/c. Each zinc(Ⅱ) atom exhibits a distorted four-coordinated tetrahedral geometry. Two monodentate carboxyl groups link one zinc(Ⅱ) atom to form a mononuclear molecule. The structure feature is different from that of compounds 1 and 2, which could be attributed to the different coordinated numbers and radii of Co(Ⅱ), Ni(Ⅱ) and Zn(Ⅱ) atoms. 展开更多
关键词 supramolecular network o-vanillic acid metal atom crystal structure TGA
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Synthesis and Crystal Structure of a New Supramolecular Compound Constructed from Flexible 1,1'-(1,4-Butanediyl)bis(imidazole) and 1,2,4,5-Benzenetetracarboxylic Acid
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作者 蒋凯 梅雪兰 +1 位作者 李艳鸽 姚景才 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2010年第3期395-399,共5页
A new bis(imidazolium) compound,[H2L(H2btec)2]·H4btec(1,L=1,1'-(butane-1,4-diyl)bis(imidazole),H4btec=1,2,4,5-benzenetetracarboxylatic acid),has been synthesized and structurally characterized by singl... A new bis(imidazolium) compound,[H2L(H2btec)2]·H4btec(1,L=1,1'-(butane-1,4-diyl)bis(imidazole),H4btec=1,2,4,5-benzenetetracarboxylatic acid),has been synthesized and structurally characterized by single-crystal X-ray diffraction.The title compound crystallizes in the monoclinic system,space group Pnma,with a=13.3908(11),b=13.9249(12),c=16.2166(14),V=2957.6(4)3,Z=4,Mr=698.55,Dc=1.569 mg/m3,F(000)=1448,μ(MoKα)=0.130 mm-1,the final R=0.0584 and wR=0.1538 for 4295 observed reflections with I2σ(I).The compound consists of one 1,1'-(butane-1,4-diyl)bis(imidazolium) cation,one neutral H4btec and one H2btec2-(Only two para carboxyl groups are deprotonated,and two protonated ones remain free) anion.A one-dimensional hydrogen bonding chain and a 2D hydrogen bonding network are formed via intermolecular N–H…O and O–H…O hydrogen bonds.These adjacent chains are further stacked through intermolecular π-π and hydrogen bonding interactions to form a 3D supramolecular network. 展开更多
关键词 synthesis crystal structure supramolecular networks
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A Three-dimensional Supramolecular Complex {[Co(H_2btec)(2,2'-bipy)(H_2O)_3]·H_2O}_n Assembled via Hydrogen Bonding and π-π Stacking Interactions
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作者 孙明玲 尹培秀 +4 位作者 李兆基 曹新医 程建开 覃业燕 姚元根 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2010年第5期726-731,共6页
A new cobalt compound,{[Co(H2btec)(2,2'-bipy)(H2O)3]·H2O}n (1,H4btec=1,2,4,5-benzenetetracarboxylic acid,2,2'-bipy=2,2'-bipyridine),has been synthesized and charac-terized by single-crystal X-ray diffr... A new cobalt compound,{[Co(H2btec)(2,2'-bipy)(H2O)3]·H2O}n (1,H4btec=1,2,4,5-benzenetetracarboxylic acid,2,2'-bipy=2,2'-bipyridine),has been synthesized and charac-terized by single-crystal X-ray diffraction,elemental analysis,IR and X-ray powder diffraction.The crystal belongs to the triclinic system,space group P1,with a=7.230(3),b=11.626(5),c=14.001(6),α=108.12(0)°,β=95.85(0)°,V=1095.33(157)3,C20H20CoN2O12,Mr=539.31,Z= 2,Dc=1.635 g/cm3,μ=0.855 mm-1,F(000)=554,R=0.0427 and wR=0.1042 for 3883 observed reflections (I 〉 2σ(I)).The title compound features a discrete molecular structure,which is connected with each other through extensive O-H…O hydrogen bonds into an intricate 3D supramolecular network.Additionally,two different patterns of π-π stacking interactions further consolidate the framework. 展开更多
关键词 cobalt compound 1 2 4 5-benzenetetracarboxylic acid 2 2'-bipyridine supramolecular network crystal structure
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基于柱芳烃主客体相互作用和卤键构筑超分子聚合物网络及其应用研究
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作者 赵磊磊 梁必聪 +1 位作者 贾兰 王丕 《化工新型材料》 CAS CSCD 北大核心 2023年第S02期618-622,626,共6页
合成了基于柱[5]芳烃主体和4-4-(溴苯基)吡啶客体的AB型单体,该单体可在氯仿中自组装成线形超分子聚合物。加入4,4′-联吡啶(BPy)后,在卤键的作用下,线形超分子聚合物发生交联,形成超分子聚合物网络(SPN)。这种超分子聚合物网络对于甲... 合成了基于柱[5]芳烃主体和4-4-(溴苯基)吡啶客体的AB型单体,该单体可在氯仿中自组装成线形超分子聚合物。加入4,4′-联吡啶(BPy)后,在卤键的作用下,线形超分子聚合物发生交联,形成超分子聚合物网络(SPN)。这种超分子聚合物网络对于甲基橙具有高吸附能力,显示了其在废液处理中的潜力。 展开更多
关键词 柱芳烃 卤键 超分子聚合物网络 染料吸附
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有机多羧酸纳米填料增强增韧聚苯并咪唑的研究
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作者 郜远鹏 王彦 +2 位作者 胡祖明 于俊荣 诸静 《山东化工》 CAS 2023年第5期1-4,10,共5页
运用可逆的非共价作用,在芳醚型聚苯并咪唑(OPBI)溶液中掺入含有羧基官能团的芳香族多羧酸小分子,使用溶液自组装的方法构建高性能聚合物超分子交联网络,然后制备致密薄膜用于研究超分子交联对OPBI机械性能的影响。结果发现制备的交联... 运用可逆的非共价作用,在芳醚型聚苯并咪唑(OPBI)溶液中掺入含有羧基官能团的芳香族多羧酸小分子,使用溶液自组装的方法构建高性能聚合物超分子交联网络,然后制备致密薄膜用于研究超分子交联对OPBI机械性能的影响。结果发现制备的交联膜最高断裂伸长率达到160%,断裂强度达到145 MPa,这分别是OPBI膜的2.6倍和2倍;除此之外交联膜的热稳定性没有受到影响,玻璃化转变温度还略有提高。同时交联膜具备一定的耐溶剂性,在一定程度上也表现出良好的回收性能。 展开更多
关键词 非共价作用 超分子交联网络 增强增韧 可回收
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抗盐丙烯酰胺非线型共聚物的合成及溶液特性 被引量:4
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作者 王伟 张杰 +4 位作者 赵凤祥 陈瑜芳 王晓燕 杨怀军 严曦 《石油学报(石油加工)》 EI CAS CSCD 北大核心 2021年第2期416-421,共6页
实验室合成了长链大单体4-乙烯基辛烷基酚聚氧乙烯(14)醚(SMA),并以丙烯酰胺(AM)为主要原料,引入单体SMA、4-乙烯基联苯(VB)和2-丙烯酰胺基-2-甲基丙磺酸(AMPS),采用水溶液自由基胶束聚合法合成了抗盐丙烯酰胺非线型共聚物(PPSA)。采用... 实验室合成了长链大单体4-乙烯基辛烷基酚聚氧乙烯(14)醚(SMA),并以丙烯酰胺(AM)为主要原料,引入单体SMA、4-乙烯基联苯(VB)和2-丙烯酰胺基-2-甲基丙磺酸(AMPS),采用水溶液自由基胶束聚合法合成了抗盐丙烯酰胺非线型共聚物(PPSA)。采用核磁共振氢谱(1H-NMR)和红外光谱(FT-IR)对PPSA进行了表征。考察了聚合物质量浓度、NaCl含量和温度对共聚物溶液表观黏度的影响。结果表明:PPSA在NaCl水溶液中显示出优异的盐增稠和热增稠效应;当PPSA质量浓度为2000 mg/L时,在53℃下质量分数为10%NaCl水溶液中表观黏度达到1210 mPa·s,显示了优异的增黏和抗盐性能;且在80℃下质量分数为10%NaCl水溶液中的表观黏度仍达到100.3 mPa·s,显示了良好的耐温性;扫描电镜(SEM)照片显示PPSA在高浓度NaCl水溶液中形成了超分子网络结构。 展开更多
关键词 丙烯酰胺 耐温 抗盐 疏水缔合 超分子网络
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一维超分子化合物[(L^1)(H_4SiMo_(12)O_(40))]·8H_2O的合成、晶体结构及电化学性质 被引量:5
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作者 林宏艳 刘丹娜 +3 位作者 陈路飞 韩娜 乐茂 刘国成 《渤海大学学报(自然科学版)》 CAS 2015年第2期139-144,共6页
以有机胺分子丙二胺(L1)为配体,利用水热合成方法制备了一个新的基于Keggin型多金属氧酸盐阴离子[Si Mo12O40]4-的有机-无机杂化超分子化合物[(L1)(H4Si Mo12O40)]·8H2O(1),并通过红外光谱和X-射线单晶衍射方法确定了化合物的晶体... 以有机胺分子丙二胺(L1)为配体,利用水热合成方法制备了一个新的基于Keggin型多金属氧酸盐阴离子[Si Mo12O40]4-的有机-无机杂化超分子化合物[(L1)(H4Si Mo12O40)]·8H2O(1),并通过红外光谱和X-射线单晶衍射方法确定了化合物的晶体结构.该配合物分子式为C3H30Mo12N2O48Si,三斜晶系,P 1空间群,a=12.8900(6),b=13.3870(6),c=13.5260(6),α=87.0260(10)°,β=88.6050(10)°,γ=88.2740(10)°,Z=2,V=2329.22(18)3,Mr=2041.64,Dc=2.888 g/cm3,F(000)=1896,μ=3.259 mm-1,S=1.077,R=0.0504,wR=0.1513.晶体结构分析表明,该化合物是由离散的多金属氧酸盐簇H4Si Mo12O40和丙二胺分子L1组成,两种组分间通过氢键作用形成一维超分子带状链结构.利用循环伏安法研究了目标化合物修饰碳糊电极的电化学行为及其对NO2-还原的电催化性能.CCDC:1040790. 展开更多
关键词 水热合成 多金属氧酸盐 超分子网络 晶体结构 电化学性质
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一个新的三维超分子配位聚合物[Ni(pyridine-2-carboxylate)2]n·2nH2O的水热合成及晶体结构 被引量:7
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作者 李秀梅 牛艳玲 +1 位作者 刘博 周实 《分子科学学报》 CAS CSCD 北大核心 2009年第1期60-63,共4页
采用水热法合成了一个新的金属-有机配位聚合物[Ni(pyridine-2-carboxylate)2]n.2nH2O,对其进行元素分析、红外光谱和X射线单晶衍射测定.结构分析表明:该晶体属于三斜晶系,P-1空间群,晶胞参数a=5.1284(6)nm,b=7.6346(9)nm,c=9.2295(11)... 采用水热法合成了一个新的金属-有机配位聚合物[Ni(pyridine-2-carboxylate)2]n.2nH2O,对其进行元素分析、红外光谱和X射线单晶衍射测定.结构分析表明:该晶体属于三斜晶系,P-1空间群,晶胞参数a=5.1284(6)nm,b=7.6346(9)nm,c=9.2295(11)nm,α=74.902(2)°,β=84.347(2)°,γ=71.442(2)°,V=330.70(7)nm3,化学式为C12H12NiN2O6,Mr=338.95,Dc=1.702g/cm3,μ(Mo,Kα)=1.497mm-1,F(000)=174,Z=1,R=0.0333,wR=0.0384((I>2σ(I)).并且该配合物通过O—H…O和C—H…O氢键形成了三维超分子网状结构. 展开更多
关键词 水热合成 超分子网状结构 吡啶-2-羧酸
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