铅—四（4—三甲铵基苯基）卟啉多元配合物增敏显色的研究

ｐｂ２＋是常见的有毒物质,当一定量的ｐｂ２＋进入人体后,会产生中毒反应,严重者会危及生命。测定食品和环境中ｐｂ２＋含量是常见的分析任务。ＴＡＰＰ作为脱氧核糖核酸和Ｃｕ２＋的显色剂的光度分析法已有报导［１～２］。但ＴＡＰＰ与形成的二元配合物稳定性欠佳,...     

一硝基四苯基卟啉及其Cu(Ⅱ)、Zn(Ⅱ)配合物的电化学和光谱电化学

以卟啉环为配体的金属卟啉配合物具有特殊的光、电、磁及生物功能．在卟啉骨架的吡咯环上引入拉电子基团如ＣＮ或Ｂｒ等,能改变卟啉的氧化还原电位;当有ＰｈＩＯ、Ｈ２Ｏ２、ＮａＯＣｌ、ＲＣＯ３Ｈ等氧化剂存在时,这类卟啉衍生物可作为有机环氧化的催化剂．因此对环取...     

薄层色谱法分离四苯基卟啉和四苯基钴卟啉

提出了用薄层色谱分离四苯基卟啉和四苯基钴卟啉的方法.方法中以石油醚-二甲苯(体积比为2:1)二元溶剂体系为展开剂,在硅胶薄层板上分离了四苯基卟啉和四苯基钴卟啉,所得斑点清晰、无拖尾.应用此薄层色谱法跟踪检测了四苯基钴卟啉的合成.     

5,10,15,20-四(对-癸酰氧基)苯基卟啉过渡金属配合物的红外光声光谱

测试并研究了５，１０，１５，２０－四（对－癸酰氧基）苯基卟啉及其Ｍｎ（Ⅲ）、Ｆｅ（Ⅲ）、Ｃｏ（Ⅱ）、Ｎｉ（Ⅱ）、Ｃｕ（Ⅱ）、Ｚｎ（Ⅱ）配合物在３６００－１９０ｃｍ＾－１范围内的傅立叶变换红外光声光谱，对主要谱带进行了经验归属。结果表明，３３１８，９６８ｃｍ＾－１处的吸收谱带分别是四（对－癸酰氧基（苯基卟啉Ｎ－Ｈ键伸缩振动、面内弯曲振动、生成配合物后这些谱带全部消失。２５０ｃｍ＾－１处的吸收谱带是Ｍ－Ｎ键伸缩振动和卟啉环变形振动的复合振动，３２７ｃｍ＾－１处的吸收谱带是Ｍ－Ｃｌ键伸缩振动，金属敏感带出现在１３５４、１０１８、９９１、７９０、６３２、２３１ｃｍ＾－１处。     

卟啉环上的亲核取代：2-(2-萘酚)-5,10,15,20-四苯基卟啉的合成

为了制备2-取代卟啉，研究了2-硝基-5,10,15,20-四苯基卟啉1及其镍2，铜3，锌4配合物与2-萘酚钠在不同溶剂中的反应。在2-萘酚中，150℃的温度下反应，分别得到2-(2-萘酚)-5,10,15,20-四苯基卟啉5 （72%）, 及其镍(II) 6（78%）, 铜(II) 7（81%）, 锌(II) 8（65%）配合物。在其它质子性溶剂如一缩二乙二醇和一缩二乙二醇单甲醚中反应，得到相同的产物。当在非质子性溶剂DMF，150 ℃的温度下反应，除了得到5 (70%)，6 (34%)，7 (54%), 8 (50%)外，还分别得到微量2-(2-萘氧基)-5,10,15,20-四苯基卟啉9, 及其镍(II) 10（40%）,铜(II) 11（18%）, 锌(II)12 （2%）配合物。但室温下，无论用DMF还是DMSO做溶剂，均只得到5，6，7，8。卟啉1-4与萘酚钠的反应比与苯酚钠反应快，C-C键产物5-8的形成被认为是通过S_RN1机理进行的。     

四-(对-磺基苯基)卟啉二酸(H_4~(2+)TSPP)分子聚集体的共振喇曼光谱研究

研究了四－（对－磺基苯基）卟啉二酸（Ｈ２＋４ＴＳＰＰ）的Ｊ－聚集体共振喇曼光谱,用氘代法考察了各喇曼谱带的同位素位移．指认３条低波数喇曼带为分子聚集体的晶格模．喇曼光谱退偏比测量表明,聚集体中Ｈ２＋４ＴＳＰＰ的对称性较分子态降低．比较游离碱Ｈ２ＴＳＰＰ和分子态Ｈ２＋４ＴＳＰＰ共振喇曼光谱讨论了聚集体中Ｈ２＋４ＴＳＰＰ的结构变化．Ｈ２＋４ＴＳＰＰ在聚集体中以接近面对面方式排列     

meso-四-(对甲氧基)苯基卟啉和meso-四-(对甲氧基)苯基卟啉的电化学性质

锌卟啉配合物;合成;meso-四-(对甲氧基)苯基卟啉和meso-四-(对甲氧基)苯基卟啉的电化学性质     

八乙墓卟啉和四苯基卟啉合钌(Ⅱ)及锇(Ⅱ)的二氧加合物的红外光谱

ＯＥＰ（八乙基卟啉阴离子）和ＴＰＰ（四苯基卟啉阴离子）合钌（Ⅱ）和锇（Ⅱ）的二氧加合物由ｍａｔｒｉｘ分离技术得到（Ｔ＝２０－４３Ｋ，Ｐ＝１０＾－５－１０＾－６ｔｏｒｒ）。为了确定ν（Ｏ２）带的归属应用于同位素取代法＾１６Ｏ２／＾１８Ｏ２。ＩＲ谱说明对于钌的两种加合物（指ＯＥＰ和ＴＰＰ）都有两种异构体，其ν（＾１６Ｏ２）频率为：Ｒｕ（ＯＥＰ）Ｏ２，１１４１和１１０３ｃｍ＾－１；Ｒｕ（ＴＰＰ）Ｏ２，１     

四苯基卟啉锌[ZnTPP(H_2O)]的晶体结构及性质研究

用X射线衍射法确定了四苯基卟啉锌（Ⅱ）水合物ZnC44H28N4（H2O）的晶体结构。晶体属于单斜晶系，C2空间群，a=18903（4），b=9．672（2），c=13．379（3）A，β=134．92（3）°，V=1732（1）A3，Z=2，Dx=1．335g／cm3，Mr=696．13，μ（MoKa）＝0．764mm－1,F（000）=720。最终偏离因子R=0．055，Rw=0．050（1076、个I≥3σ（I）衍射点）。配合物分子中Zn（Ⅱ）离子落入卟啉空腔内与4个吡咯氮原子共平面，在垂直该平面上与H对H2O分子呈轴向配位，其分子结构呈四方锥型。用电子吸收光谱和1HNMR波港以及循环伏安法对其性质进行表征，并对其轴向配位反应的热力学性质进行研究。     

锰（Ⅲ）—四（4—氨基苯基）卟啉与单链脱氧核糖核酸间染色反应的研究

本文研究了固定于硝酸纤维素滤膜（ＮＣ）上单链脱氧核糖核酸（ｓｓＤＮＡ）与锰（Ⅲ）－ｍｅｓｏ－四（４－氨基苯基）卟啉（ＭＮ－ＴＡＰＰ）间的染色反应机理及实用性，室温下，在２５～１００ｍｍｏｌ／Ｌ的磷酸缓冲液（ｐＨ５．５～７．０）中，６０～８０μｇ／ｍＬ锰（Ⅲ）－ｍｅｓｏ－四（４－氨基苯基）卟啉可将固定于ＮＣ膜上的ｓｓＤＮＡ染成绿色，低至１０ｐｇ／ｄｏｔ的ｓｓＤＮＡ亦可被检出。     

四(4-重氮基苯基)卟啉的合成及其与聚苯乙烯磺酸钠自组装的研究

卟啉是一类重要的功能性小分子染料,近年来,在光化学治疗^[1,2]、光电转换^[3,4]、传感元件^[5]、烯烃环氧化催化剂^[6]和光敏化剂^[7]等方面的研究与应用引起了人们的广泛注意.通过两亲卟啉分子衍生物,或带有负电荷的卟啉衍生物,特别是带磺酸基的卟啉分子与正离子聚电解质自组装,制备带有卟啉结构单元的LB膜和自组装膜已有很多报道^[8～14].     

四(对-十二酰氧基苯基)卟啉配合物的红外光声光谱

四(对-十二酰氧基苯基)卟啉配合物的红外光声光谱     

四-(对-十二酰氧基)苯基卟啉过渡金属配合物的合成及其液晶行为研究

合成了5,10,15,20-四-(对-十二酰氧基)苯基卟啉(简称TLPPH₂)及其Mn(Ⅲ),Fe(Ⅲ),Co(Ⅱ),Ni(Ⅱ),Cu(Ⅱ)和Zn(Ⅱ)配合物,通过元素分析、紫外可见光谱、红外光声光谱、核磁共振氢谱和摩尔电导等分析方法表征了它们的组成和结构.用DSC和偏光显微镜研究了配体及其锌配合物的液晶行为.结果表明,锌配合物的液晶相变温度始于-50.67℃,相区宽度达143℃.     

四(对-癸酰氧基)苯基卟啉过渡金属配合物的合成及红外光声光谱解析

合成出相变温度较低、相区宽的卟啉液晶5,10,15,20-四(对-癸酰氧基)苯基卟啉[简称TDPPH₂]及其Mn(Ⅲ),Fe(Ⅲ),Co(Ⅱ),Ni(Ⅱ),Cu(Ⅱ),Zn(Ⅱ)配合物.通过元素分析、紫外可见光谱、红外光声光谱、核磁共振氢谱和摩尔电导等分析方法表征了它们的组成和结构,并用DSC和偏光显微镜研究了配体及其锌配合物的液晶行为.测试并研究了配体及其配合物在3600～190cm^-1范围内的傅里叶变换红外光声光谱,对其主要谱带进行了经验归属.     

四(对-十八酰氧基)苯基卟啉及其过渡金属配合物的合成及红外光声光谱研究

合成了5,10,15,20-四(对-十八酰氧基)苯基卟啉及其Mn(Ⅲ),Fe(Ⅲ),Co(Ⅱ),Ni(Ⅱ),Cu(Ⅱ)和Zn(Ⅱ)配合物,用元素分析和紫外-可见光谱等方法进行了表征.研究了这7种卟啉化合物在3600～190cm^-1范围内的傅里叶变换红外光声光谱,对主要谱带进行了经验归属.结果表明,3318.0及968.4cm^-1处的吸收谱带分别是四(对-十八酰氧基)苯基卟啉N-H键的伸缩振动和面内弯曲振动,生成配合物后这些谱带消失.243cm^-1附近的吸收谱带是M-N键伸缩振动和卟啉环变形振动的复合振动,321cm^-1附近的吸收谱带是M-Cl键的伸缩振动,金属敏感带出现在1350,1018,995,802,740,632和232cm^-1附近.     

Structural patterns in clathrates and crystalline complexes of zinc-tetra(4-chlorophenyl)porphyrin and zinc-tetra(4-fluorophenyl)porphyrin

Twelve new crystalline materials based on zinc-tetra(4-chlorophenyl)porphyrin (8 compounds) and zinc-tetra(4-fluorophenyl)prophyrin (4 compounds) building blocks have been prepared and characterized by X-ray diffraction analysis. Several different modes of guest solvent incorporation into the porphyrin lattice, including enclathration (of solvents of low polarity) and complex formation (with strong Lewis bases), and of intermolecular organization have been detected. Unique interporphyrin architectures, affected by directional Cl...Cl interactions, characterize most of the known solid structures of the chlorosubstituted materials. A small number of the latter, as well as the fluorosubstituted derivatives, exhibit interporphyrin arrangements of the type which are commonly observed in the clathrates of unsubstituted tetraphenylmetalloporphyrins. The pore structure of these compounds is affected to a large extent by the nature of the incorporated solvate and, consequently, the degree of coordination of the metal center. In crystals of four-coordinate porphyrins the solvent guest components are usually incorporated into channel-type cavities formed between columns and layers of densely stacked hosts. In five-coordinate and six-coordinate materials the guest sites coincide with the axial coordination sites of the porphyrin metal atoms. The latter structures reveal a tight fit between adjacent layers of the complexed entities, the axial ligands of one layer being incorporated into localized interporphyrin cavities of another layer. Dipolar forces play also an important role in the interporphyrin organization.Supplementary Data relating to this article have been deposited with the British Library as supplementary publication No. SUP 82183 (97 pages).     

Inclusion Complexes of Cyclodextrins with Tetrakis(4-carboxyphenyl)porphyrin and Tetrakis(4-sulfonatophenyl)porphyrin in Aqueous Solutions

In neutral and alkaline solutions, tetrakis(4-carboxyphenyl)porphyrin (TCPP) and tetrakis(4-sulfonatophenyl)porphyrin (TSPP) form 1:1 and 2:1 host–guest inclusion complexes with -cyclodextrin (-CD), -cyclodextrin (-CD), and 6-deoxy-6-diethylamino--CD (DEA--CD), except for DEA--CD in alkaline solution. On the other hand, TCPP and TSPP form only 1:1 inclusion complexes with 6-deoxy-6-dihexylamino--CD (DHA--CD). The limited solubilities of DEA--CD in alkaline solution and DHA--CD are likely responsible for no observation of the 2:1 inclusion complex containing DEA--CD in alkaline solution and that containing DHA--CD. The equilibrium constants (Ks) of TCPP and TSPP for the formation of the inclusion complexes have been estimated from the absorption and/or fluorescence intensity changes in neutral and alkaline solutions. The K₂ values, which are the equilibrium constants for the formation of the 2:1 host–guest inclusion complex from the 1:1 inclusion complex, are about one tenth the corresponding K₁ values, except for the -CD–TSPP system in alkaline solution. In neutral solution, where DEA--CD and DHA--CD are in protonated forms, the electrostatic force operates between DEA--CD (DHA--CD) and TCPP (TSPP), leading to the greater K values than those in alkaline solution, where DEA--CD and DHA--CD exist as neutral species.     

四(对羟基苯基)钴卟啉的合成新方法

本研究用丙酸和DMF混合液作为溶剂,采用溶剂热合成的方法这一新型的合成方法,由吡咯,对羟基苯甲醛,以及CoCl2.6H2O直接合成四羟基苯基钴卟啉配合物。探讨了诸因素对反应的影响,找出最佳的反应过程以及最适宜的反应条件:在140℃时,吡咯,对羟基苯甲醛,金属盐CoCl2.6H2O,丙酸,DMF的摩尔比为4∶4∶1∶134∶86时得最高产率,达到43.2%,这相比于传统方法的10%～30%有了一定的提高。     

Synthesis and Crystal Structure of Tetra（o-cyanobenzyl）tin

The tetra（o-cyanobenzyl）tin compound has been synthesized by the reaction of cyanobenzyl chloride with tin, and its molecular structure was characterized by elemental analysis, IR spectra, ^1H NMR and X-ray diffraction. Crystal data for this compound： monoclinic, space group C2/c, Mr = 583.24, a = 1.9629（2）, b = 1.05967（13）, c = 1.41249（18） nm, β= 118.180（2）^o, V = 2.5898（5） nm^3, Z = 4, Dc =1.496 g/cm^3, μ（MoKa） = 1.015 cm^-1, F（000） = 1176, R = 0.0189, wR = 0.0497 （observed reflections with I 〉 20（I）） and R = 0.0218, wR = 0.0513 （all reflections）. The molecular structure adopts a distorted tetrahedral geometry around the tin atom. The Sn＇＂N weak interaction between the Sn and N atoms of cyano forms an intermolecular H-bonding, and the bond length is 0.3570 nm; the interaction between hydrogen of methylene and benzene ring of benzyl forms C-H…C with its bond length of 0.2817 nm; and the interaction among hydrogen of benzene ring and carbon of cyano forms Ph-H…C bond （0.2897 nm） Of the σ…π interaction. A 3D chain structure is formed by the above weak intermolecular interactions.     

有机锡化合物四对氰苄基锡(p-NCC6H4CH2)4Sn的合成、表征和晶体结构

The organotin(Ⅳ) compound (p-NCC₆H₄CH₂)₄Sn was synthesized by the reaction of p-cyanobenzyl chloride with tin. The compound was characterized by elemental analysis, IR, ¹H NMR, and the crystal structure was determined by X-ray single crystal diffraction. The crystal belongs to triclinic, space group P1 with a=0.894 1(4) nm, b=0.977 9(4) nm, c=1.796 8(8) nm, V=1.386 9(11) nm³, Z=2, D_c=1.397 Mg·m^-3, μ(Mo Kα)=0.948 mm^-1, F(000)=588, R₁=0.046 9, wR₂=0.101 4. The tin atom adopts a distorted tetrahedral coordination geometry. CCDC: 272939.