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Synthesis and Crystal Structure of 1,2Bis(2-benzimidazolyl) benzene 被引量:8
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作者 WANGZhuo-Yuan WANGLi-Ge 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2005年第1期2-2,共1页
The title compound C6H4(C7H5N2)2 was prepared by the condensation of o-phenyl- enediamine with o-phthalic acid and characterized by elemental analysis, IR, UV and H NMR 1 spectra, and its stru... The title compound C6H4(C7H5N2)2 was prepared by the condensation of o-phenyl- enediamine with o-phthalic acid and characterized by elemental analysis, IR, UV and H NMR 1 spectra, and its structure was determined by single-crystal X-ray diffraction. The crystal belongs to orthorhombic system, space group Pbcn with a = 17.928(8), b = 8.828(4), c = 9.752(4)?, Z = 4, V = 1543.4(12) ?3, Dc = 1.336 g/cm3, Mr = 310.35, λ(MoKα) = 0.71073 ?, μ = 0.082 mm-1, F(000) = 648, R = 0.0405 and wR = 0.1092. A total of 1693 unique reflections were collected, of which 1319 with I > 2σ(I) were observed. It is shown that the compound molecule belongs to C2 point group. A one-dimensional chain structure was formed by the intermolecular hydrogen bonds (N(2)–H… N(1)). 展开更多
关键词 bis(2-benzimidazolyl)benzene synthesis crystal structure
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Comparative Studies of 1,4-Bis[2-(4-Pyridyl)ethenyl]-benzene Using Density Functional Theory
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作者 CHENG Jian-bo Lǚ Jia-ping GONG Bao-an LI Wen-zuo 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2007年第4期469-473,共5页
The optimized molecular structure and harmonic vibrational frequencies of a 1,4-bis [ 2-(4-pyridyl)ethenyl]- benzene(BPENB) molecule were calculated via five popular density functional theory(DFI') methods. On ... The optimized molecular structure and harmonic vibrational frequencies of a 1,4-bis [ 2-(4-pyridyl)ethenyl]- benzene(BPENB) molecule were calculated via five popular density functional theory(DFI') methods. On the basis of the comparison between calculated and experimental results, it is concluded that the B3PW91 and B3LYP methods are superior to the others in optimizing structures, and the BPW91 method reproduces the observed fundamental fre-quencies most satisfactorily. 展开更多
关键词 1 4-bis[2-(4-pyridyl)ethenyl]-benzene Density functional theory Vibrational frequencies BPW91
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Synthesis,Structure and Luminescent Properties of [Zn(btzb)_2Cl_2]·2H_2O [btzb=1,2-Bis(5-tetrazolyl)benzene]
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作者 刘东 陈阳 +3 位作者 李红喜 任志刚 张勇 郎建平 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2008年第3期335-339,共5页
The title compound [Zn(btzb)2Cl2]·2H2O (1·2H2O, btzb = 1,2-bis(5-tetrazolyl)ben- zene) was synthesized in situ by the [2+3] cycloaddition reaction of phthalonitrile with NaN3 in water in the presence ... The title compound [Zn(btzb)2Cl2]·2H2O (1·2H2O, btzb = 1,2-bis(5-tetrazolyl)ben- zene) was synthesized in situ by the [2+3] cycloaddition reaction of phthalonitrile with NaN3 in water in the presence of ZnCl2 under refluxing conditions. 1·2H2O crystallizes in the monoclinic system, space group P2 1/c with a = 9.0119(18), b = 7.5566(15), c = 18.076(5)A, β= 114.67(2)°, V= 1118.6(4)A^3, Z = 2, Dc = 1.784 g/cm^3, T= 223(2) K, C16H16N16O2Cl2Zn, Mr = 600.74, F(000) = 608, μ(MoKα) = 1.393 mm^-1, S = 1.081, R = 0.0306 and wR = 0.0669 for 1896 observed reflections with I 〉 2σ(I). The Zn^2+ ion of 1 is coordinated by four N atoms from two btzb ligands and two Cl atoms, forming a distorted octahedral coordination geometry. A number of intermolecular hydrogen bon- ding interactions between molecules 1 and/or the solvated water molecules result in a 3D hydrogen-bonded structure. The luminescent property of 1·2H2O was also investigated. 展开更多
关键词 zinc(II) complex 1 2-bis(5-tetrazolyl)benzene SYNTHESIS crystal structure luminescent properties
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Hydrothermal Synthesis, Crystal Structure and Surface Photo-electric Properties of a New Nickel(Ⅱ) 3-D Metalorganic Framework Constructed from the Rigid 1,4-Bis(imidazol-1-yl) benzene Ligand
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作者 王爱荣 李家明 +2 位作者 史忠丰 何坤欢 高健 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2017年第4期647-653,共7页
A new 3-D nickel(Ⅱ) metal-organic framework(MOFs) with formula [Ni(bib)_2(SO_4)]_n(1), where bib = 1,4-bis(imidazol-1-yl)benzene, has been synthesized and characterized by single-crystal X-ray diffraction... A new 3-D nickel(Ⅱ) metal-organic framework(MOFs) with formula [Ni(bib)_2(SO_4)]_n(1), where bib = 1,4-bis(imidazol-1-yl)benzene, has been synthesized and characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental analysis and surface photovoltage spectroscopy(SPS). Complex 1 crystallizes in monoclinic system, space group C2/c with a = 19.5988(6), b = 9.7531(3), c = 11.8146(4) ?, β = 96.185(3)°, V = 2245.20(12) ?~3, C_(24)H_(20)N_8NiO_4S, M_r = 575.25, D_c = 1.702 g/cm^3, Z = 4, F(000) = 1184, μ = 1.011 mm-1, the final R = 0.0293 and w R = 0.0702. X-ray diffraction analyses indicated that the center Ni^(2+) ion is six-coordinated with an O_2N_4 donor set of two μ_2-SO_4^(2–) and four bib ligands, resulting in an ideal octahedral geometry. Topological analysis on complex 1 considers each Ni^(2+) as a 6-connected node, while bib and sulfate ion as linkers, giving an α-Po topology with short Schl?fli symbol 412·63. In the crystal packing, the components interact with pairs of intermolecular C–H×××O hydrogen bonds. The SPS of 1 indicates that there are positive response bands in the range of 300~600 nm showing photo-electric conversion properties. 展开更多
关键词 photo-electric property nickel(Ⅱ) complex 1 4-bis(imidazol-1-yl)benzene synthesis crystal structure
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Syntheses,Crystal Structures,and Magnetic Properties of Two Manganese(Ⅱ) Coordination Polymers Based on Bifunctional Pyridine-benzene Carboxylic Acids 被引量:3
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作者 黄胜 蒋畅 +1 位作者 姚枫枫 康杰 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2016年第8期1260-1268,共9页
Two manganese(II) coordination polymers, namely, {[Mn(PIP)(BIBP)]·(BIBP)0.5}n(1) and {[Mn(PTA)(BIMBP)(H2O)]·H2O(0.69)}n(2)(H2PIP = 5-(4-pyridyl)-isophthalic acid, H2 PTA =6-(4-pyridyl... Two manganese(II) coordination polymers, namely, {[Mn(PIP)(BIBP)]·(BIBP)0.5}n(1) and {[Mn(PTA)(BIMBP)(H2O)]·H2O(0.69)}n(2)(H2PIP = 5-(4-pyridyl)-isophthalic acid, H2 PTA =6-(4-pyridyl)-terephthalic acid, BIBP = 4,4?-bis(imidazol-1-yl)biphenyl, and BIMBP =4,4?-bis(imidazol-1-ylmethyl)biphenyl), have been synthesized by using the bifunctional pyrinde-benzene carboxylic acids and bis(imidazole) linkers as mixed ligands to react with Mn SO4,and further characterized by elemental analysis, IR, and PXRD. Compound 1 is in the triclicnic system, space group P1 with a = 10.1089(8), b = 13.1927(12), c = 14.0638(12)A, α = 69.437(2), β= 73.2890(10), γ = 78.5320(10)o, V = 1671.9(2) A^3, Z = 2, Dc = 1.449 g/cm^3, F(000) = 705,μ(MoK α) = 0.453 mm^-1, S = 1.053, R = 0.0491 and wR = 0.1367 for 5837 unique reflections(Rint =0.0208) with I 〉 2σ(I). Compound 2 belongs to the monoclicnic system, space group C2/c with a =15.199(3), b = 19.731(3), c = 21.537(5) ?, β = 105.228(3)o, V = 6232(2) A^3, Z = 8, Dc = 1.363g/cm^3, F(000) = 2648, μ(MoK α) = 0.475 mm^-1, S = 1.048, R = 0.0489 and wR = 0.1151 for 7414 unique reflections(Rint = 0.0425) with I 〉 2σ(I). Structural analyses reveal that complex 1 is a4-connected(44.62)-sql bilayer structure with binuclear [Mn2(COO)2] SBU, while complex 2 is a normally(3,5)-connected(42.67.8)(42.6)-3,5L2 monolayer. And the sheets interacted with the adjacent sheets through weak interactions, finally giving a stable three-dimensional(3D)supramolecule. Besides, the variable-temperature magnetic susceptibility measurement of complex1 was investigated. 展开更多
关键词 coordination polymer pyridine-benzene carboxylic acid manganese magnetic property bis(imidazole) linkers
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Pd_2(dba)_3/BINAP催化合成1,4-双-(4′-苯胺基苯酰基)苯 被引量:7
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作者 常冠军 罗炫 +1 位作者 张林 林润雄 《合成化学》 CAS CSCD 2007年第1期88-90,共3页
以Pd2(dba)3/BINAP催化1,4-双-(4′-溴苯酰基)苯和苯胺反应,合成了1,4-双-(4′-苯胺基苯酰基)苯,其结构经UV,1HNMR,13CNMR和元素分析表征。
关键词 苯胺 Pd2(dba)3/biNAP 双氨基苯酰基苯 催化 合成
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1,4-双(二甲基羟基硅)苯的制备及表征
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作者 向世平 肖勇 +5 位作者 陈海亚 黄赓乔 鲁明涛 王俊勋 熊风 张振燕 《有机硅材料》 CAS 2024年第3期10-15,21,共7页
以对二溴苯、二甲基二甲氧基硅烷、镁屑为原料,通过格氏法合成苯撑硅甲氧基硅烷单体1,4-双(二甲基甲氧基硅)苯,然后经水解反应制得目标产物苯撑硅羟基单体1,4-双(二甲基羟基硅)苯。通过红外光谱表征了产物结构,探讨了搅拌速率、滴料时... 以对二溴苯、二甲基二甲氧基硅烷、镁屑为原料,通过格氏法合成苯撑硅甲氧基硅烷单体1,4-双(二甲基甲氧基硅)苯,然后经水解反应制得目标产物苯撑硅羟基单体1,4-双(二甲基羟基硅)苯。通过红外光谱表征了产物结构,探讨了搅拌速率、滴料时间、原料配比、溶剂等对苯撑硅甲氧基硅烷单体收率的影响,还研究了水解反应催化剂、加料时间对苯撑硅羟基单体收率的影响。结果表明,格氏和水解反应成功合成了苯撑硅甲氧基硅烷单体和苯撑硅羟基单体;格氏法合成苯撑硅甲氧基硅烷单体的较佳条件为:搅拌速率200r/min、滴料时间3h、对二溴苯和二甲基二甲氧基硅烷与镁物质的量之比1:2.4:2、1400mL四氢呋喃作溶剂,此时苯撑硅甲氧基硅烷单体的收率为64.2%;苯撑硅甲氧基硅烷单体经水解反应制备苯撑硅羟基单体的较佳条件为:2500mL的磷酸(H_(3)PO_(4)质量分数5%)作水解催化剂、加料时间3.5h,此时苯撑硅羟基单体的收率为77%。 展开更多
关键词 1 4-双(二甲基甲氧基硅)苯 1 4-双(二甲基羟基硅)苯 单体 格氏法 收率
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一种用于荧光检测痕量Cu^(2+)的锌基金属有机骨架
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作者 韩美荣 魏晓阳 +1 位作者 冯思思 白羽婷 《无机化学学报》 SCIE CAS CSCD 北大核心 2024年第8期1603-1614,共12页
采用水-溶剂热法制备了一种针对Cu^(2+)的新型高效荧光锌基金属有机骨架(Zn-MOF)探针:[Zn_(6)(L)_(3)(2,2'-bpy)_(4)]·2H_(2)O}_(n),其中H_(4)L=1,4-双(3,5-二羧基苯氧基)苯,2,2'-bpy=2,2'-联吡啶。本文介绍了它的合... 采用水-溶剂热法制备了一种针对Cu^(2+)的新型高效荧光锌基金属有机骨架(Zn-MOF)探针:[Zn_(6)(L)_(3)(2,2'-bpy)_(4)]·2H_(2)O}_(n),其中H_(4)L=1,4-双(3,5-二羧基苯氧基)苯,2,2'-bpy=2,2'-联吡啶。本文介绍了它的合成、结构、热稳定性和荧光传感性能。该Zn-MOF表现出良好的稳定性并且可以通过荧光猝灭法高效检测Cu^(2+)。在0~1.2μmol·L^(-1)的浓度范围内,该Zn-MOF荧光强度与Cu^(2+)浓度呈现出很强的线性相关性,检测限(LOD)低至67.1 nmol·L^(-1)。更重要的是,通过系统分析红外光谱、粉末X射线衍射、紫外可见吸收光谱、电感耦合等离子体质谱和X射线光电子能谱,验证了所获得的结果:该Zn-MOF可通过弱相互作用特异性识别Cu^(2+)。此外,该Zn-MOF在连续5个循环中表现出良好的再生性能。 展开更多
关键词 1 4-双(3 5-二羧基苯氧基)苯 晶体结构 荧光探针 铜(Ⅱ)离子
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两步法合成1,4-二(2-苯并咪唑)苯及其与不同溶剂分子的晶体结构
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作者 严欣宇 易君明 +1 位作者 代顺乾 陈明华 《广州化工》 CAS 2024年第20期33-35,44,共4页
以邻苯二胺和对苯二甲醛为原料,在乙醇溶剂中于4℃的冰箱内反应制备新化合物1,4-二[苯胺-2-(E)-亚甲氨基]苯中间体,该中间体在体积比为5∶1的乙酸乙酯与甲醇的混合溶剂中于室温下与空气反应得到产物1,4-二[2-苯并咪唑基]苯,产物分别在N... 以邻苯二胺和对苯二甲醛为原料,在乙醇溶剂中于4℃的冰箱内反应制备新化合物1,4-二[苯胺-2-(E)-亚甲氨基]苯中间体,该中间体在体积比为5∶1的乙酸乙酯与甲醇的混合溶剂中于室温下与空气反应得到产物1,4-二[2-苯并咪唑基]苯,产物分别在N,N-二甲基甲酰胺及体积比为1∶1的三氟乙酸水溶液中析出晶体,其结构通过单晶X-射线衍射进行表征。实验结果表明,两步法合成实验操作简便、成本低廉,目标产物可与不同的溶剂及水分子形成三元结合物,且均为三斜晶系,P-1空间群。 展开更多
关键词 邻苯二胺 对苯二甲醛 1 4-二[苯胺-2-(E)-亚甲氨基]苯 1 4-二[2-苯并咪唑基]苯 晶体结构
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BIPB缩合液分析方法及高效液相色谱法的优化 被引量:1
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作者 王卫 阎露海 《石化技术》 CAS 2011年第1期22-26,共5页
介绍了两种用于控制1,3(1,4)-双(叔丁基过氧异丙基)苯缩合反应速率的分析方法(化学滴定方法和高效液相色谱法)。针对高效液相色谱测定方法,详细介绍了液相色谱法测定条件的确定、回收率实验、精密度实验等,并优化了液相色谱法的分离条... 介绍了两种用于控制1,3(1,4)-双(叔丁基过氧异丙基)苯缩合反应速率的分析方法(化学滴定方法和高效液相色谱法)。针对高效液相色谱测定方法,详细介绍了液相色谱法测定条件的确定、回收率实验、精密度实验等,并优化了液相色谱法的分离条件。相比化学滴定法,高效液相色谱法是一种确保生产安全、提高产品质量的更加适宜的分析方法。 展开更多
关键词 高效液相色谱法 缩合反应 叔丁基过氧化氢 1 3(1 4)二-(2-羟基异丙基)苯1 3(1 4)-双(叔丁基过氧异丙基)苯
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Syntheses, Crystal Structures, and Properties of Two Mixed-ligand Coordination Polymers: [Zn(bdc)(1,3-bimb)]_n and {[Mn_2(ox)_2(1,3,5-tib)_(4/3)]·4H_2O}_n 被引量:2
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作者 石聪文 高燕 +4 位作者 柳若芍 范黎明 张伟 丁元帅 张修堂 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2013年第9期1422-1430,共9页
Two new coordination polymers,[Zn(bdc)(1,3-bimb)]n(1) and {[Mn2(ox)2(1,3,5tib)4/3]·4H2O}n(2)(H2ox = oxalic acid,H2bdc = terephthalic acid,1,3-bimb = 1,3-bis(imidazol-1ylmethyl)benzene,1,3,5-tib = 1... Two new coordination polymers,[Zn(bdc)(1,3-bimb)]n(1) and {[Mn2(ox)2(1,3,5tib)4/3]·4H2O}n(2)(H2ox = oxalic acid,H2bdc = terephthalic acid,1,3-bimb = 1,3-bis(imidazol-1ylmethyl)benzene,1,3,5-tib = 1,3,5-tri(imidazol-1-yl)benzene),were synthesized and characterized by elemental analysis,IR,powder X-ray diffraction(PXRD),and thermogravimetric(TG) analyses.X-ray diffracation analysis reveals that two kinds of zigzag chains [Zn(bdc)]n and [Zn(1,3-bimb)]n in compound 1 are interweaved to form a 3D 4-fold interpenetrated 66-dia framework.In compound 2,Mn(1) and Mn(2) are linked via 1,3,5-tib ligands to form two different nets of [Mn6(1,3,5-tib)6 ]n along the ab plane with inner-or outer-shape N–Mn–N angles,which are connected by 1D infinite [Mn2(ox)2 ]n chains via Mn–O bonds to result in a(3,3,3,4,4)-connected(4·8·10)3(4·82)3(4·83·102)6(82·104·3)3(83)4 topology.Moreover,the photoluminescence of 1 has been investigated.The crystal of 1 crystallizes in orthorhombic,space group Pna2 with a = 13.2267(6),b = 9.1717(4),c = 17.4492(8),V = 2116.79(16)3,Z = 4,C22 H18N4O4 Zn,Mr = 467.77,Dc = 1.468 g/cm3,F(000) = 960 and μ(MoKα) = 1.197 mm-1.The final R = 0.0280 and wR = 0.0618 for 3695 observed reflections with I 2(I) and R = 0.0389 and wR = 0.0653 for all data.The crystal of 2 crystallizes in rhombohedral,space group R-3 with a = 22.080(8),c = 31.19(2),V = 13167(11) 3,Z = 18,C24 H25 Mn2 N8 O13,Mr = 743.40,Dc = 1.688 g/cm3,F(000) = 6822 and μ(MoKα) = 0.945 mm-1.The final R = 0.0429 and wR = 0.1035 for 5160 observed reflections with I 2(I) and R = 0.0824 and wR = 0.1244 for all data. 展开更多
关键词 terephthalic acid oxalic acid 1 3-bis(imidazol-1-ylmethyl)benzene 1 3 5-tri(imidazol-1-yl)benzene luminescence
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Syntheses and Structures of Three Copper Coordination Polymers Based on Bis(triazol-1-ylmethyl)benzene
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作者 葛海燕 彭艳芬 +2 位作者 丁建刚 李宝龙 张勇 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2012年第7期1479-1484,共6页
Three copper(Ⅱ) coordination polymers [Cu(mbtz)2(NCS)2]n (1), [Cu(mbtz)2Cl2]n (2) and [Cu(mbtz)(btec)0.5]n (3) (mbtz= 1,3-bis(1,2,4-triazol-1-ylmethyl)benzene, btec= 1,2,4,5-benzenetetracarboxyl... Three copper(Ⅱ) coordination polymers [Cu(mbtz)2(NCS)2]n (1), [Cu(mbtz)2Cl2]n (2) and [Cu(mbtz)(btec)0.5]n (3) (mbtz= 1,3-bis(1,2,4-triazol-1-ylmethyl)benzene, btec= 1,2,4,5-benzenetetracarboxylate) were synthesized. In 1 and 2, two mbtz ligands are wrapped around each other and are held together by Cu(Ⅱ) atoms to form one-dimensional double chain. In 3, each btec ligand connects four Cu(Ⅱ) atoms through its four carboxylate groups, resulting in a planar two-dimensional [Cu(btec)0.5]n network. The Cu(Ⅱ) atoms are further coordinated mbtz ligands to fulfil their coordination geometry and construct new [Cu(btec)0 .5(mbtz)]n network. 2 and 3 further form the three-dimensional network through the π…π stacking interactions between the mbtz ligands. The thermal stabilities of 1, 2 and 3 were measured. 展开更多
关键词 copper complex coordination polymer structure bis(1 2 4-triazol-l-ylmethyl)benzene benzenetetra carboxylate
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Theoretical study on second-order nonlinear optical properties of unsymmetric bis (phenylethynyl) benzene series derivatives
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作者 付伟 封继康 +4 位作者 于坤千 任爱民 崔勐 李耀先 孙家钟 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2000年第2期175-181,共7页
On the basis of ZINDO methods, according to the sum-overstates (SOS) expression, the program for the calculation of the second-order nonlinear optical susceptibilities βijk and βμ of molecules was devised, and the ... On the basis of ZINDO methods, according to the sum-overstates (SOS) expression, the program for the calculation of the second-order nonlinear optical susceptibilities βijk and βμ of molecules was devised, and the structures and nonlinear optical properties of unsymmetric bis(phenylethynyl) benzene series derivatives were studied. The influence of the molecular conjugated chain lengths, the donor and the acceptor on βμ was examined. 展开更多
关键词 Unsymmetric bis (phenylethynyl) benzene series derivatives second-order nonlinear optical susceptibility ZINDOSOS
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双苯磺酰基苯类延迟荧光材料的合成及电致发光性质
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作者 王达浩 谢凤鸣 +2 位作者 魏怀鑫 胡英元 赵鑫 《材料导报》 EI CAS CSCD 北大核心 2023年第4期211-215,共5页
以1,3-双(苯磺酰基)苯为受体基团(A)、二苯胺和吩噁嗪分别为供体基团(D),设计合成了两种具有扭曲D-A-D结构的热激活延迟荧光(TADF)材料:1,3-双(3-二苯氨基苯磺酰基)苯(PSPA)和1,3-双(3-吩噁嗪-10-基苯磺酰基)苯(PSPP)。在1,3-双(苯磺酰... 以1,3-双(苯磺酰基)苯为受体基团(A)、二苯胺和吩噁嗪分别为供体基团(D),设计合成了两种具有扭曲D-A-D结构的热激活延迟荧光(TADF)材料:1,3-双(3-二苯氨基苯磺酰基)苯(PSPA)和1,3-双(3-吩噁嗪-10-基苯磺酰基)苯(PSPP)。在1,3-双(苯磺酰基)苯的3,3′-位连接供体基团,使供体和受体之间有较大的扭曲角,实现了最高占据分子轨道(HOMO)和最低未占据分子轨道(LUMO)的有限重叠,获得了较小的ΔE ST(分别为0.21 eV和0.016 eV)和较好的光致发光量子产率(PLQYs,分别为4.36%和37.36%)。瞬态荧光谱表明,PSPA和PSPP都具有典型的延迟荧光特性。基于PSPA的器件呈现蓝光发射(450 nm);基于PSPP的器件因吩噁嗪的强给电子能力,在520 nm处发射绿光,发射峰红移,且其最大外量子效率大于PSPA,达到4.48%。 展开更多
关键词 热激活延迟荧光 有机发光二极管 双(苯磺酰基)苯 电致发光性质
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1,4-二氯甲基-2,5-二甲基苯与1,4-二氯甲基-2-甲氧基-5-辛氧基苯的共聚研究 被引量:5
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作者 龙永福 王建营 +1 位作者 李银奎 范真祥 《国防科技大学学报》 EI CAS CSCD 1999年第5期112-115,共4页
用1,4-二氯甲基-2,5-二甲基苯和1,4-二氯甲基-2-甲氧基-5-辛氧基苯共聚合成了一种可溶的聚对苯乙炔的衍生物,对共聚物结构进行了红外光谱。
关键词 BCMDMB BCMMOOOB 共聚 红外光谱 聚对苯乙炔
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环己基苯氧化-分解联产苯酚和环己酮技术的研究进展Ⅰ.苯加氢烷基化制备环己基苯 被引量:6
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作者 纪刚 温朗友 +3 位作者 夏玥穜 郜亮 慕旭宏 宗保宁 《石油化工》 CAS CSCD 北大核心 2016年第6期641-647,共7页
苯通过加氢烷基化反应制备环己基苯,再经氧化-分解反应可同时得到苯酚和环己酮2种重要化工原料,是近些年发展起来的生产苯酚和环已酮的新途径;该工艺与传统异丙苯氧化生产苯酚方法相比,副产了高附加值的环己酮,解决了丙酮生产过剩的问... 苯通过加氢烷基化反应制备环己基苯,再经氧化-分解反应可同时得到苯酚和环己酮2种重要化工原料,是近些年发展起来的生产苯酚和环已酮的新途径;该工艺与传统异丙苯氧化生产苯酚方法相比,副产了高附加值的环己酮,解决了丙酮生产过剩的问题。比较了苯加氢烷基化、环己烯与苯烷基化和联苯选择加氢制备环己基苯3种方法,重点对苯加氢烷基化所涉及的化学反应、催化机理、双功能催化剂、反应工艺及流程的研究进展进行概述。并指出了该技术存在的问题,对其今后的发展提出了建议。 展开更多
关键词 苯酚 环己酮 加氢烷基化 环己基苯 双功能催化剂
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聚亚胺酮的合成与性能研究 被引量:19
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作者 常冠军 罗炫 +1 位作者 张林 林润雄 《高分子学报》 SCIE CAS CSCD 北大核心 2007年第6期585-588,共4页
(1,4-Bis-(4-bromobenzoyl)benzene) as the monomer has been synthesized and characterized by Friedel-Crafts benzoylation reaction.Novel poly(imino ketone)s(PIKs) as high performance polymers have been obtained by ... (1,4-Bis-(4-bromobenzoyl)benzene) as the monomer has been synthesized and characterized by Friedel-Crafts benzoylation reaction.Novel poly(imino ketone)s(PIKs) as high performance polymers have been obtained by the condensation polymerization of(1,4-bis-(4-bromobenzoyl)benzene) and aromatic diamines via palladium-catalyzed aryl amination reaction.The strcture of PIKs is characterized by means of FT-IR and()1H-NMR spectroscopy,and the results show an agreement with the proposed structure.DSC and TG measurements show that PIKs possess high glass transition temperature(Tg>230℃) and good thermal stability with high decomposition temperatures(TD>500℃).PIKs also exhibit the excellent solubility,PIK-3 can be dissolved in common organic solvent CHCl3 at room temperature(20℃). 展开更多
关键词 1 4-双-(4′溴苯酰基)苯 钯催化 配体 聚亚胺酮
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1,3-双(4-氨基-2-三氟甲基苯氧基)苯及其无色透明聚酰亚胺薄膜的制备与性能研究 被引量:12
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作者 张丽娟 虞鑫海 +1 位作者 徐永芬 傅菊荪 《绝缘材料》 CAS 北大核心 2010年第1期4-8,13,共6页
以间苯二酚和2-氯-5-硝基三氟甲苯为基本原料,在N,N-二甲基甲酰胺溶剂中,经亲核取代反应制得1,3-双(4-硝基-2-三氟甲基苯氧基)苯(DNRes-2TF),并利用Pd/C、水合肼进一步还原得到1,3-双(4-氨基-2-三氟甲基苯氧基)苯(DARes-2TF)。随后,以... 以间苯二酚和2-氯-5-硝基三氟甲苯为基本原料,在N,N-二甲基甲酰胺溶剂中,经亲核取代反应制得1,3-双(4-硝基-2-三氟甲基苯氧基)苯(DNRes-2TF),并利用Pd/C、水合肼进一步还原得到1,3-双(4-氨基-2-三氟甲基苯氧基)苯(DARes-2TF)。随后,以该二胺和芳香族二酐在N,N-二甲基乙酰胺(DMAc)溶剂中,聚合得到聚酰胺酸溶液,热亚胺化得到无色透明聚酰亚胺薄膜,并对薄膜性能进行了研究。结果表明:含氟取代基及间位取代结构是制备无色透明聚酰亚胺的一条颇具前途的路线,且不会牺牲材料的耐热稳定性及力学性能。 展开更多
关键词 1 3-双(4-硝基-2-三氟甲基苯氧基)苯 1 3-双(4-氨基-2-三氟甲基苯氧基)苯 聚酰亚胺薄膜 制备 性能 透明性
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1,4-双(4-氨基苯氧基)苯及其聚酰亚胺树脂的合成 被引量:19
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作者 虞鑫海 徐永芬 +1 位作者 赵炯心 傅菊蓀 《绝缘材料》 CAS 2007年第3期11-14,共4页
对苯二酚(HQ)和对氯硝基苯(PCNB)通过缩合反应,合成得到了1,4双(4-硝基苯氧基)苯(144BNPB);随后,在Pd/C-水合肼的还原体系中,被进一步还原,得到了1,4-双(4-氨基苯氧基)苯(144BAPB)单体。基于144BAPB单体,制得了多种结构的芳香族聚酰胺... 对苯二酚(HQ)和对氯硝基苯(PCNB)通过缩合反应,合成得到了1,4双(4-硝基苯氧基)苯(144BNPB);随后,在Pd/C-水合肼的还原体系中,被进一步还原,得到了1,4-双(4-氨基苯氧基)苯(144BAPB)单体。基于144BAPB单体,制得了多种结构的芳香族聚酰胺酸树脂及其对应的聚酰亚胺树脂,并对它们的性能进行了研究。 展开更多
关键词 1 4-双(4-氨基苯氧基)苯 聚酰亚胺 合成 性能
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联苯聚醚醚酮酮的合成与性能研究 被引量:16
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作者 苑晶 张万金 +3 位作者 那辉 姬相玲 王军佐 吴忠文 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 1994年第5期763-766,共4页
用亲核取代路线合成了含亚联苯结构的新型聚醚醚酮酮(联苯PEEKK),并对其基本性能进行了测定。结果表明,联苯PEEKK的Tm比聚醚醚酮(PEEK)高77℃,其Tg比PEEK的高41℃,且保持了良好的力学性能。本文还对... 用亲核取代路线合成了含亚联苯结构的新型聚醚醚酮酮(联苯PEEKK),并对其基本性能进行了测定。结果表明,联苯PEEKK的Tm比聚醚醚酮(PEEK)高77℃,其Tg比PEEK的高41℃,且保持了良好的力学性能。本文还对联苯PEEKK的晶体结构进行了初步探讨。 展开更多
关键词 聚醚醚酮酮 联苯二酚 双苯
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