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Catalytic epoxidation of olefin over supramolecular compounds of molybdenum oxide clusters and a copper complex 被引量:3
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作者 高洪成 颜岩 +5 位作者 徐晓弘 于杰辉 牛会玲 高文秀 张文祥 贾明君 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 北大核心 2015年第11期1811-1817,共7页
The catalytic epoxidation of olefin was investigated on two copper complex-modified molybdenum oxides with a 3D supramolecular structure, [Cu(bipy)]4[Mo15O47].2H2O (1) and [Cu1(bix)][(Cu1bix) (δ-MoVl8O26)0.... The catalytic epoxidation of olefin was investigated on two copper complex-modified molybdenum oxides with a 3D supramolecular structure, [Cu(bipy)]4[Mo15O47].2H2O (1) and [Cu1(bix)][(Cu1bix) (δ-MoVl8O26)0.5] (2) (bipy = 4,4'-bipyridine, bix = 1,4-bis(imidazole-1-ylmethyl)benzene). Both compounds were catalytically active and stable for the epoxidation of cyclooctene, 1-octene, and styrene with tert-butyl hydroperoxide (t-BuOOH) as oxidant. The excellent catalytic performance was attributed to the presence of stable coordination bonds between the molybdenum oxide and copper complex, which resulted in the formation of easily accessible Mo species with high electropositivity. In addition, the copper complex also acted as an active site for the activation of t-BuOOH, thus im- proving these copper complex-modified polyoxometalates. 展开更多
关键词 supramolecular compound Molybdenum oxide cluster Copper complex Olefin Epoxidation
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Hydrothermal Synthesis,Crystal Structure and Fluorescence Spectrum Studies of a Supramolecular Compound {[2-(2-Pyridyl)benzimidazoleH_2]^(2+)·[SbCl_5]^(2-)}_2 被引量:5
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作者 郭应臣 卓立宏 +2 位作者 赵一阳 姚兴芝 黄群增 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2008年第11期1333-1338,共6页
A new supramolecular compound, { [2-(2-pyridyl)benzimidazoleH2]2+.[SBC15]2-}2, was synthesized by the hydrothermal reaction of o-diaminobenzene, 2-pyridinecarboxylie acid and SbCl3 in 1:1 HC1 solution, and charact... A new supramolecular compound, { [2-(2-pyridyl)benzimidazoleH2]2+.[SBC15]2-}2, was synthesized by the hydrothermal reaction of o-diaminobenzene, 2-pyridinecarboxylie acid and SbCl3 in 1:1 HC1 solution, and characterized by chemical analysis, elemental analysis, IR spectra, thermogravimetfic analysis and fluorescence spectra. The crystal structure was deter- mined by X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group P211c, with a = 16.0397(13), b = 14.3189(12), c = 15.6370(13) A, β = 105.8980(10)°, V = 3454.0(5) A3, Z = 4, C24H22Cl10N6Sb2, Mr = 992.48, Dc = 1.909 g/cm3,/z = 2.366 mm-1, S = 1.010, F(000) = 1920, R = 0.0254 and wR = 0.0555. The coordination anion, [SbCl5]2- which is a distorted tetragonal pyramid, is composed by coordinating action with Sb3+ ion and five adjacent chloride ions. Every four coordination anions of [SbCl5]2- form a biquaternion ring structure through the secondary bonding of Sb...Cl. Moreover, the compound adopts a three-dimensional network supramolecular structure because of the hydrogen bonds and π-π stacking between the rings and the 2-(2-pyridyl)benzimidazole divalent cations. The title compound also shows good fluorescent behaviors. 展开更多
关键词 2.(2-pyridyl)benzimidazole supramolecular compound hydrothermal synthesis crystal structure fluorescence spectrum
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Synthesis and Structural Characterization of a Supramolecular Compound [(C_8H_9NO_2)·HgI_2]_n Constructed from Hg…I and C–H…O Linkage 被引量:2
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作者 杜巧云 秦建华 吴海霞 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2007年第7期817-821,共5页
The title complex [(C8H9NO2)·HgI2]n has been synthesized from the reaction of pyridine-3-ethylformate with mercury iodide in the mixture of DMF and absolute methanol. Its structure was determined by IR, element... The title complex [(C8H9NO2)·HgI2]n has been synthesized from the reaction of pyridine-3-ethylformate with mercury iodide in the mixture of DMF and absolute methanol. Its structure was determined by IR, elemental analysis and X-ray single-crystal diffraction analysis. The crystal is of monoclinic system, space group P21/n with a = 4.3397(5), b = 25.051(3), c = 12.3719(13)A, β = 92.2130(10)°, CsH9HgI2NO2, Mr = 605.55, V = 1344.0(3)A^3, Z = 4, Dc = 2.993 mg·m^-3, F(000) = 1064, μ = 16.024 mml, the final R = 0.0258 and wR = 0.0504. In the title complex, the center Hg(II) exhibits a four-coordinated distorted tetrahedral geometry. A three-dimensional network arrangement is presented via Hg…I weak interactions among adjacent molecules. 展开更多
关键词 pyridine-3-carboxylic mercury iodide crystal structure supramolecular compound
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Synthesis,Structure and Electrochemical Property of a Supramolecular Compound(H_2en)_2[Cu(en)_2(H_3O)_2][Mo_8O_(28)] 被引量:1
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作者 金海娟 周百斌 +1 位作者 赵志凤 苏占华 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2010年第2期213-218,共6页
A supramolecular compound(H2en)2[Cu(en)2(H3O)2][Mo8O28](en=ethylenediamine) was hydrothermally prepared and confirmed by elemental analysis and TG analysis.Single-crystal X-ray analysis reveals that the crysta... A supramolecular compound(H2en)2[Cu(en)2(H3O)2][Mo8O28](en=ethylenediamine) was hydrothermally prepared and confirmed by elemental analysis and TG analysis.Single-crystal X-ray analysis reveals that the crystal crystallizes in the triclinic system,space group P1 with a=9.4635(4),b=9.8645(5),c=10.9794(5)A,α=69.2050(10),β=72.3730(10),γ=78.4510(10)o,Mr=1559.55,V=908.24(7)A^3,Z=1,Dc=2.851 g/m^3,F(000)=749,μ=3.350 mm^-1,S=1.000,the final R=0.0217 and wR=0.0567.The compound consists of(H2en)^2+,[Mo8O28]^8-anion and [Cu(en)2(H3O)2]^2+ cations and constructs a 3D supramolecular structure through hydrogen bonds between the nitrogen atoms from en of [Cu(en)2(H3O)2]^4+ fragments and the terminal oxygen atoms from the [Mo8O28]^8-polyoxoanions.The electrochemical behavior of this compound has been studied in detail based on a solid bulk modified carbon paste electrode of compound(CPE). 展开更多
关键词 hydrothermal synthesis OCTAMOLYBDATE supramolecular compound hydrogen bonds electrochemical property
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Hydrothermal Synthesis,Crystal Structure and Fluorescence Spectrum Studies of a Novel Supramolecular Compound {[2-(2-Pyridyl)benzimidazoleH_2]_2·[BiCl_6]·Cl} 被引量:1
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作者 邱东方 李玉玲 +1 位作者 王宏伟 郭应臣 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2010年第5期811-815,共5页
A novel supramolecular compound,{[2-(2-pyridyl)benzimidazoleH2]2·[BiCl6]·Cl},was synthesized by the hydrothermal reaction of o-phenylenediamine and α-pyridinecarboxylic acid with BiCl3 in 6.0 mol·L-1... A novel supramolecular compound,{[2-(2-pyridyl)benzimidazoleH2]2·[BiCl6]·Cl},was synthesized by the hydrothermal reaction of o-phenylenediamine and α-pyridinecarboxylic acid with BiCl3 in 6.0 mol·L-1 HCl solution,and characterized by elemental analysis,IR,X-ray single-crystal diffraction and photoluminescence spectroscopy.The crystal (C24H22N6Cl7Bi,Mr= 851.61) belongs to the triclinic system,space group P1 with a =7.2887(18),b =9.548(2),c= 12.469(3),α=85.306(4),β=82.814(4),γ=71.349(4)°,Z=1,V=814.9(3)3,Dc=1.735 g/cm3,μ(MoKα)=6.007 mm-1,F(000)=410,R=0.0307 and wR=0.0787.The bismuth ion and six chlorine ions construct a distorted octahedral configuration.The three-dimensional supramolecular network is built from electrostatic attractions,hydrogen bonds and π-π interaction between the BiCl6 anion,Cl anion and [2-(2-pyridyl)benzimidazoleH2] cation.The photoluminescence spectroscopy study shows that the title compound has a blue fluorescent emission at 450 nm in the solid state. 展开更多
关键词 2-(2-pyridyl)benzimidazole supramolecular compound hydrothermal synthesis crystal structure photoluminescence spectroscopy
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Synthesis and Structure of a Novel Supramolecular Compound [Co(2,2′-bipy)(H_2O)_4 ][trans-1,4-chdc] and Separation of Isomer of 1,4-Cyclohexanedicarboxylic Acid
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作者 YU Miao LIU Shu-xia ZHANG Chun-dan GAO Bo SUN Chun-yan XIE Lin-hua WANG Chun-ling CHENG Hai-yan 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2006年第4期415-418,共4页
A supramolecular compound, [ Co(2,2'-bipy) ( H2O)4 ] [ trans-1,4-chdc ] ( compound 1 ) ( 2,2'-bipy = 2,2'- bipyridine, 1,4-chdcH2 = 1,4-cyclohexanedicarboxylic acid), was synthesized and characterized by si... A supramolecular compound, [ Co(2,2'-bipy) ( H2O)4 ] [ trans-1,4-chdc ] ( compound 1 ) ( 2,2'-bipy = 2,2'- bipyridine, 1,4-chdcH2 = 1,4-cyclohexanedicarboxylic acid), was synthesized and characterized by single-crystal Xray diffraction analysis, IR spectrometry, TG analysis, and elemental analyses. Single-crystal X-ray diffraction analysis revealed that [ Co( 2,2'-bipy) ( H2O)4 ]^2+ units and adjacent 1,4-chdc^2- formed a single layer by hydrogen bonding and electrostatic interactions along the ac-plane, and two symmetry-related single layers interacted with each other by hydrogen bonding, resulting in a double layer, which further formed a 3-D structure by π-π stacking. The most attractive structural feature of compound 1 is that 1,4-chdc2- possesses only tram-conformation although there are both c/s- and tram-conformations in the raw material. 展开更多
关键词 Isomer separation 1 4-chdcH2 supramolecular compound Hydrogen bonding
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Construction of a Ytterbium Supramolecular Compound from 5,5'-(Buta-diyne- 1,4-diyl)diisophthalic Acid
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作者 WANG Jing MU Li +2 位作者 ZHAO Tingting FAN Zhiqiang ZHANG Lirong 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2014年第6期885-888,共4页
A novel 3D ytterbium supramolecular compound, [Yb(HBDDC)(H20)4]·2H2O(1), was synthesized via 5,5'-(buta-diyne-1,4-diyl)diisophthalic acid ligand(HaBDDC) under solvothermal conditions. Single-crystal X-... A novel 3D ytterbium supramolecular compound, [Yb(HBDDC)(H20)4]·2H2O(1), was synthesized via 5,5'-(buta-diyne-1,4-diyl)diisophthalic acid ligand(HaBDDC) under solvothermal conditions. Single-crystal X-ray diffraction analysis reveals that compound 1 crystallizes in triclinic system, PT space group with a=0.71372(14) nm, b=1.0566(2) nm, c=1.7969(4) nm, a=101.01(3)°, β=98.15(3)°, γ=99.17(3)° and V=1.2922(4) nm3. Compound 1 exhi- bits a special infinite 1D chain, which stacks parallel each other in an ABAB sequence, leading to the formation of a 3D supramolecular structure owing to the strong π-π interactions between adjacent phenyl ring groups. Moreover, compound 1 manifests excellent luminescent property. 展开更多
关键词 supramolecular compound Solvothermal condition YTTERBIUM Luminescent property
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Synthesis and Crystal Structure of a Novel Three-dimensional Supramolecular Compound [(AgI_3)(4-HBPFA)_2(H_2O)]
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作者 王宇飞 李金鹏 +2 位作者 韦永莉 朱玉 侯红卫 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2005年第5期521-524,490,共5页
The supramolecular compound [(AgI3)(4-HBPFA)2(H2O)] (Mr = 1361.11) was synthesized via the reaction of 1,1?-bis[(4-pyridylamino)carbonyl]ferrocene (4-BPFA) with AgI, and structurally characterized by single-crystal X-... The supramolecular compound [(AgI3)(4-HBPFA)2(H2O)] (Mr = 1361.11) was synthesized via the reaction of 1,1?-bis[(4-pyridylamino)carbonyl]ferrocene (4-BPFA) with AgI, and structurally characterized by single-crystal X-ray diffraction analysis. Crystal data: monoclinic, space group C2/c, a = 1.6783(3), b = 10.646(2), c = 2.5419(5) ?, β = 93.66(3)o, V = 4532.2(16) ?3, Z = 4, Dc = 1.995 g/cm3, F(000) = 2632 and μ = 3.158 mm-1. The compound consists of (4- HBPFA)+, (AgI3)2- and H2O. In the structure, the adjacent (4-HBPFA)+ are linked by C–H…O and N–H…N hydrogen bonds into 1-D chains which are further linked by C–H…I and N–H…I hydrogen bonds as well as intermolecular π-π stacking interactions to form a 3-D supramolecular compound. 展开更多
关键词 Ag(I) complex supramolecular compound hydrogen bonds crystal structure
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Syntheses, Crystal Structures, Thermal and Fluorescent Properties of Two New Bearing Bi(Ⅲ) Supramolecular Compounds
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作者 LU Wei-Hong XU Ting +3 位作者 YANG Fan SUN Jun-Bin CHEN Man-Sheng YAN Qun-Xuan 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2021年第5期603-609,529,共8页
Two new bearing Bi(Ⅲ) supramolecular compounds [Bi(pydcH)_(3)(Bi(pydcH)(pydcH_(2))(pydc)(Bi(pydcH)(pydcH_(2))(pydc)](1) and {[Bi(pydcH)_(3)]·(H_(2)O)_(5)(Dmap)}_(2)(2) have been successfully synthesized via hydr... Two new bearing Bi(Ⅲ) supramolecular compounds [Bi(pydcH)_(3)(Bi(pydcH)(pydcH_(2))(pydc)(Bi(pydcH)(pydcH_(2))(pydc)](1) and {[Bi(pydcH)_(3)]·(H_(2)O)_(5)(Dmap)}_(2)(2) have been successfully synthesized via hydrothermal reaction(pydcH_(2) = 2,6-pyridine dicarboxylate, Dmap = 4-dimethylamiopyridine). They have been structurally determined by single-crystal X-ray analysis, and characterized by fluorescence analysis and thermogravimetric analysis(TG). Both compounds 1 and 2 are of the same triclinic system with different structures. The decomposition mechanisms of compounds 1 and 2 are discussed. Compared to 1, lots of small molecules were possibly removed from compound 2 below 250 ℃. In addition, the photoluminescence properties were also investigated. 展开更多
关键词 Bi(Ⅲ)supramolecular compounds crystal structure fluorescence thermal stability
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Preparation for Supramolecular Complexes of Chiral Diols BDPDD, DMBDPD and BINOL with Some Prochiral Compounds
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作者 De Jun LIU Zi Xing SHAN +1 位作者 Rong WANG Jin Gui QIN 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第4期375-378,共4页
Interaction between chiral diols BDPDD, DMBDPD and BINOL with prochiral compounds was examined and some new supramolecular complexes were prepared. It was found that these chiral hosts could include prochiral guests,... Interaction between chiral diols BDPDD, DMBDPD and BINOL with prochiral compounds was examined and some new supramolecular complexes were prepared. It was found that these chiral hosts could include prochiral guests, a, b-unsaturated compounds or piper- azinedione derivatives to give inclusion crystals in different molar ratio. Formations of these supramolecular complexes were characterized by the data of IR and 1H NMR spectra. 展开更多
关键词 Chiral diols prochical compounds supramolecular complexes preparation.
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π-CONJUGATED OLIGOMERS IN SUPRAMOLECULAR CRYSTALS AND THEIR OPTOELECTRONIC FUNCTIONS 被引量:2
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作者 沈家骢 马於光 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2007年第1期9-22,共14页
Functional organic molecular materials and conjugated oligomers or polymers now allow the low-cost fabrication of thin films for insertion into new generations of electronic and optoelectronic devices. The performance... Functional organic molecular materials and conjugated oligomers or polymers now allow the low-cost fabrication of thin films for insertion into new generations of electronic and optoelectronic devices. The performance of these devices relies on the understanding and optimization of several complementary processes. Our goal is to discuss the relationship between the molecular stacking structures and their optoelectronic properties that are of importance in all these areas. The concept of intermolecular interaction should be taken here in the special sense that is inter-dipole coupling. Specifically, we will address the impact of inter-dipole interaction between adjacent molecules in aggregate state on the solid-state emission properties. 展开更多
关键词 supramolecular crystal Interaction OLIGOMER Conjugated compound.
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Synthesis and Crystal Structure of an Ionic Compound [Fe(CN)_6·(PhCH_2NC_9H_7)_4]·12H_2O
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作者 黄华鸣 边秀珠 杜巧云 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2009年第7期859-863,共5页
A novel ionic compound [Fe(CN)6·(PhCHeNC9H7)4]·12H2O(C70H80FeN10O12, Mr = 1309.29) has been synthesized and its structure was characterized by I-R, elemental analysis and X-ray diffraction. The compoun... A novel ionic compound [Fe(CN)6·(PhCHeNC9H7)4]·12H2O(C70H80FeN10O12, Mr = 1309.29) has been synthesized and its structure was characterized by I-R, elemental analysis and X-ray diffraction. The compound crystaUizes in triclinic, space group P1, with a = 10.968(7), b = 11.466(7), c = 14.077(8)A, α= 87.014(7), β= 78.124(7), γ = 72.708(7)°, V = 1654.1(17)A3, Z = 1, Dc = 1.314 g·cm^-3, F(000) = 692, p = 0.298 mm^-1, the final R = 0.0519 and wR = 0.1355. The building unit of the title compound consists of four (PhCH2N+C9H7) ions, one [Fe(CN)6]4- anion, and a dozen water molecules. According to the structural analysis, [Fe(CN)6]4- ions are linked together by O-H…O and O-H…N hydrogen bonds, while (PhCH2N+C9HT) and [Fe(CN)6]4- ions interact with each other by electrostatic force to form an ionic compound. 展开更多
关键词 N-benzyl-benzopyridine ferrocyanic anion supramolecular ionic compound
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Syntheses and Crystal Structures of Two New Supramolecular Architectures Constructed from the Main Group Metal Chloride and Protonated 2-(3-Pyridyl)benzimidazole 被引量:1
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作者 夏昌坤 吴小园 +1 位作者 吴鼎铭 卢灿忠 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2011年第3期318-323,共6页
The reactions of SbCl3 and HgCl2 with 2-(3-pyridyl)benzimidazole (PyBIm) in solution acidified with HCl have been investigated. The PyBIm ligands are protonated into 2-(3-pyridinio)benzimidazolium (H2PyBIm) ca... The reactions of SbCl3 and HgCl2 with 2-(3-pyridyl)benzimidazole (PyBIm) in solution acidified with HCl have been investigated. The PyBIm ligands are protonated into 2-(3-pyridinio)benzimidazolium (H2PyBIm) cations and the corresponding metal ions are bonded with chloride atoms into coordination anions, forming two new coordination compounds, namely, (H2PyBIm)(SbCl5) 1 and (H2PyBIm)2(Hg2Cl8) 2. Both compounds were characterized by X-ray crystallography. Crystal data for 1: triclinic, space group P1^- with a = 5.7030(7), b = 9.0625(11), c = 16.5929(18) A, α = 91.808(7)°, β = 93.234(6), γ = 99.216(7)°, C12H11N3SbCl5, Mr = 496.24, V = 844.44(17) A^3, Z = 2, Dc = 1.952 g/cm^3, μ(MoKα) = 2.419 mm^-1, F(000) = 480, the final R = 0.0496 and wR = 0.1382 for 3433 observed reflections (I 〉 2σ(I)). Crystal data for 2: monoclinic, space group P21/c with a = 7.8061(5), b = 15.8127(9), c = 12.2435(9) , β = 91.955(4)o, C24H22N6Hg2Cl8, Mr = 1079.26, V = 1510.40(17) 3, Z = 2, Dc = 2.373 g/cm3, μ(MoKα) = 10.889 mm-1, F(000) = 1008, the final R = 0.0293 and wR = 0.0562 for 2854 observed reflections (I 〉 2σ(I)). X-ray diffraction analysis reveals that the antimony(III) is five-coordinated, exhibiting a slightly distorted square-pyramidal coordination geometry; while in 2, a dimeric [Hg2Cl8]^4-anion consists of two trigonal bipyramids sharing two common edges. The organic cations and coordination anions are connected into a one-dimensional belt and a two-dimensional sheet through N-H···Cl hydrogen bonding interactions in compounds 1 and 2, respectively; both are further aggregated into 3D frameworks by strong π-π contacts. 展开更多
关键词 crystal engineering hydrogen bonding interactions supramolecular chemistry 2-(3-pyridy1)benzimidazole antimony compound mercury compound
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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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两性离子超分子水凝胶的制备及对废水中阴/阳离子染料的吸附去除 被引量:1
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作者 杨海怡 冉廷敏 +1 位作者 张福平 史玉琳 《化工环保》 CAS CSCD 北大核心 2023年第3期380-386,共7页
以三聚氯氰和5-氨基间苯二甲酸为原料,通过亲核取代制备了一种新型耐盐两性离子超分子水凝胶(ZSH)2,4,6-三(3,5-二羧基苯基氨基)-1,3,5-三嗪。运用FTIR、NMR、MS和SEM技术对ZSH进行了表征,并将其用于对阴离子染料活性艳红(K-2BP)和阳离... 以三聚氯氰和5-氨基间苯二甲酸为原料,通过亲核取代制备了一种新型耐盐两性离子超分子水凝胶(ZSH)2,4,6-三(3,5-二羧基苯基氨基)-1,3,5-三嗪。运用FTIR、NMR、MS和SEM技术对ZSH进行了表征,并将其用于对阴离子染料活性艳红(K-2BP)和阳离子红(X-GTL)的吸附去除。基于ZSH的pH响应性和耐盐性,在高盐染料废水中利用ZSH的原位溶胶-凝胶转变,可在其与阴/阳离子染料接触的瞬间完成吸附。当吸附pH为0.86、ZSH与K-2BP的质量比为5∶2时,K-2BP的去除率可达89.6%,饱和吸附量为459.2 mg/g;当吸附pH为1.00、ZSH与X-GTL的质量比为2∶1时,X-GTL的去除率可达91.8%,饱和吸附量为427.6 mg/g。ZSH吸附K-2BP和X-GTL的过程更符合Freundlich等温吸附模型。 展开更多
关键词 超分子水凝胶 PH响应性 耐盐 两性离子化合物 原位吸附
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超分子化合物[M(4,4'-bipy)_2(H_2O)_4]·(4,4'-bipy)_2·(3,5-diaba)_2·8H_2O](M=Co,Ni,Cd)的合成及晶体结构 被引量:12
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作者 韦友欢 谭安治 +2 位作者 陈自卢 梁福沛 胡瑞祥 《无机化学学报》 SCIE CAS CSCD 北大核心 2006年第2期273-280,共8页
合成了3个超分子化合物[M(4,4'-bipy)2(H2O)4]·(4,4'-bipy)2·(3,5-diaba)2·8H2O(M=Co(1),Ni(2),Cd(3);4,4'-bipy=4,4'-联吡啶;3,5-diaba=3,5-二氨基苯甲酸阴离子),用红外光谱、元素分析及X-射线单晶衍... 合成了3个超分子化合物[M(4,4'-bipy)2(H2O)4]·(4,4'-bipy)2·(3,5-diaba)2·8H2O(M=Co(1),Ni(2),Cd(3);4,4'-bipy=4,4'-联吡啶;3,5-diaba=3,5-二氨基苯甲酸阴离子),用红外光谱、元素分析及X-射线单晶衍射进行了表征。3个化合物的晶体都属于单斜晶系,空间群为P2/c。晶体学参数:化合物1:a=0.9389(2)nm,b=0.7751(1)nm,c=3.9284(6)nm,β=90.14(2)°,V=2.85880(69)nm3,Z=4,Dc=1.397g·cm-3,F(000)=1266,μ=0.380mm-1,R1=0.0349,wR2=0.0829;化合物2:a=0.9383(2)nm,b=0.7753(1)nm,c=3.9218(6)nm,β=90.09(1)°,V=2.85280(68)nm3,Z=2,Dc=1.399g·cm-3,F(000)=1268,μ=0.420mm-1,R1=0.0366,wR2=0.0805;化合物3:a=0.94091(13)nm,b=0.77885(11)nm,c=3.9712(5)nm,β=90.10°,V=2.9102(7)nm3,Z=2,Dc=1.433g·cm-3,F(000)=1308,μ=0.454mm-1,R1=0.0468,wR2=0.0964。3,5-diaba未参与配位,在配位阳离子[M(4,4'-bipy)2(H2O)4]2+中,金属离子M髤与来自2个4,4'-bipy的2个氮原子和4个水分子的氧原子配位,呈八面体的几何构型。分子中还存在未配位的4,4'-bipy。通过配位阳离子、游离4,4'-bipy及未配位的3,5-diaba间的丰富氢键,构建成具有三维结构的超分子化合物。 展开更多
关键词 超分子化合物 晶体结构
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配合物形成的三维超分子体系—[Ni(C_6H_4O_2N)_2(H_2O)_4]的水热法合成、晶体结构及热分析 被引量:6
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作者 孟祥茹 徐虹 +1 位作者 潘彦 侯红卫 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2003年第3期359-362,共4页
采用水热法用Ni(NO3)26H2O和异烟酸制备出了一种新的由配合物形成的三维超分子体系—[Ni(C6H4O2N)2(H2O)4],并通过X射线衍射对其晶体结构进行了测定。 该晶体属三斜晶系,空间群为Pī, 所得晶胞参数为: a = 6.9228(4), b = 9.6664(19),c ... 采用水热法用Ni(NO3)26H2O和异烟酸制备出了一种新的由配合物形成的三维超分子体系—[Ni(C6H4O2N)2(H2O)4],并通过X射线衍射对其晶体结构进行了测定。 该晶体属三斜晶系,空间群为Pī, 所得晶胞参数为: a = 6.9228(4), b = 9.6664(19),c = 6.322(1) , a = 96.86(3), b = 113.33(3), g = 110.35(3)°, V = 347.6(1) 3, Z = 1, Mr = 374.98, Dc = 1.791 g/cm3, F(000) = 194, m = 1.443 mm-1。用1362个可观察的 (I > 2s(I))衍射点,修正123个结构参数, 最终偏离因子R = 0.0444,wR = 0.1271。在组成该化合物的基本结构单元[Ni(C6H4O2N)2(H2O)4]中,Ni处于1个稍微拉长的八面体的中心; 各个结构单元之间通过氢键OH…O相互连接,形成了无限伸展的具有层状结构的三维超分子体系。 另外,从差热及热重曲线可以看出,该化合物加热到154 ℃时开始分解, 首先失去4个H2O,再失去2个异烟酸根,最后残余物为NiO。 展开更多
关键词 配合物 三维超分子体系 [Ni(C6H4O2N)2(H2O)4] 水热合成 晶体结构 热分析 氢键 差热分析 镍配合物
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1-苯基-3-甲基-4-(6-氢-4-氨基-5-硫杂-2,3-吡嗪)吡唑啉酮光致变色超分子化合物的合成、结构与性能 被引量:7
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作者 刘浪 贾殿赠 郁开北 《化学学报》 SCIE CAS CSCD 北大核心 2002年第3期493-498,共6页
通过 1 苯基 3 甲基 4 氯乙酰基 吡唑啉酮 5 (PMCP)和氨基硫脲 (TSC)缩合 ,形成了一种含NNS六元杂环的光致变色化合物 (PMCP TSC) .利用元素分析 ,MS ,1HNMR ,IR和UV光谱进行了表征 .通过紫外可见光谱对它的光致变色性质进行了研究 ... 通过 1 苯基 3 甲基 4 氯乙酰基 吡唑啉酮 5 (PMCP)和氨基硫脲 (TSC)缩合 ,形成了一种含NNS六元杂环的光致变色化合物 (PMCP TSC) .利用元素分析 ,MS ,1HNMR ,IR和UV光谱进行了表征 .通过紫外可见光谱对它的光致变色性质进行了研究 ,测出了光致变色反应的动力学常数 .并用X射线单晶衍射仪测定了PMCP TSC变色后的晶体结构 ,该晶体属单斜晶系 ,具有P2 1/c空间群 ,a =0 .10 5 10 (2 )nm ,b =0 .15 0 6 1(3)nm ,c =0 .99370 (10 )nm ,β =10 7.890 (10 )° ,V =1.496 9(4 )nm3 ,Z =4,Dc=1.417Mg/m3 ,μ =0 .2 32mm-1,F(0 0 0 ) =6 72 ,R =0 .0 334 ,wR =0 .0 896 .结构分析表明 :其光致变色现象是由于它在溶剂与光的共同作用下发生了从醇式到酮式的异构化 .同时该化合物经分子间氢键形成二聚体 ,又通过甲醇与本体分子之间的氢键使化合物形成具有三维网络结构的超分子化合物 . 展开更多
关键词 光致变色 吡唑啉酮 超分子化合物 合成 晶体结构 氨基硫脲
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超分子化合物{[Mn_2(pda)(phen)_4(H_2O)_2]·2H_2O·2ClO_4^-}的构筑及表征 被引量:7
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作者 张美丽 任宜霞 +1 位作者 王记江 张刚强 《江西师范大学学报(自然科学版)》 CAS 北大核心 2010年第3期221-226,共6页
利用间苯二乙酸、1,10-邻菲啰啉和高氯酸锰在水热条件下反应制备了一种新型超分子配合物{[Mn2(pda)(phen)4(H2O)2]·2H2O.2ClO4-}(H2pda=间苯二乙酸,phen=1,10-邻菲啰啉).通过X单晶衍射测定了晶体结构,并用元素分析、红外光谱等技... 利用间苯二乙酸、1,10-邻菲啰啉和高氯酸锰在水热条件下反应制备了一种新型超分子配合物{[Mn2(pda)(phen)4(H2O)2]·2H2O.2ClO4-}(H2pda=间苯二乙酸,phen=1,10-邻菲啰啉).通过X单晶衍射测定了晶体结构,并用元素分析、红外光谱等技术对其进行了表征.配合物属3斜晶系,空间群为P-1,a=1.129 0(2)nm,b=1.705 0(2)nm,c=1.734 5(1)nm;α=110.559(1)°,β=107.588(9)°,γ=93.102(12)°;Z=1,R1=0.071 0,wR2=0.202 9.晶体结构分析表明2个锰在1个间苯二己酸的连接下形成了一个双核结构,再在船型六元环氢键和π…π堆积共同作用下,双核结构单元被连成2维网络结构.毗邻的2维结构之间又通过氢键的支撑,拓展为3维网状超分子体系. 展开更多
关键词 锰(Ⅱ)配合物 水热合成 红外光谱 晶体结构
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新型TCAS吸附树脂对水中Cu^(2+)的吸附去除研究 被引量:5
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作者 胡晓钧 李玉双 +4 位作者 刘轶 宋雪英 李卉颖 李馨昕 王岩 《辽宁工程技术大学学报(自然科学版)》 CAS 北大核心 2011年第2期241-243,共3页
通过静态吸附试验,研究一种由超分子受体化合物磺化硫杂杯芳烃(TCAS)与树脂结合的产物-新型TCAS吸附树脂对重金属Cu2+的吸附去除性能,并初步探讨了吸附机理。试验研究结果表明:当温度为20℃,0.5gTCAS吸附树脂对10 mL浓度为5.0 mg.L-1的C... 通过静态吸附试验,研究一种由超分子受体化合物磺化硫杂杯芳烃(TCAS)与树脂结合的产物-新型TCAS吸附树脂对重金属Cu2+的吸附去除性能,并初步探讨了吸附机理。试验研究结果表明:当温度为20℃,0.5gTCAS吸附树脂对10 mL浓度为5.0 mg.L-1的Cu2+溶液吸附120 min时,Cu2+的去除率可达到99%以上,pH值对TCAS吸附树脂吸附重金属的影响不大,吸附在TCAS吸附树脂上的Cu2+可洗脱回收,TCAS吸附树脂也可再生利用。 展开更多
关键词 吸附机理 TCAS吸附树脂 CU2+ 静态试验 超分子受体化合物
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