双-(二烷硫基四硫富瓦烯二硫)金属配合物的合成及性质研究

合成了三种未见文献报道的双-(二烷硫基四硫富瓦烯二硫)金属配合物和三种新的四硫富瓦烯(TTF)桥联的双金属配合物,测定了它们的导电率,讨论了含Ni配合物的电导率优于含Cu,Hg配合物的原因。     

过渡金属四—（对—硝基）苯基卟啉配合物的XPS研究

用ＸＰＳ研究了四－（对－硝基）苯基卟啉及其Ｍｎ、Ｃｏ、Ｎｉ、Ｃｕ配合物和卟啉周边带有不同取代基的６种锰卟啉配合物。π→π跃迁能、ＮＩＳ及金属Ｍ２ｐ３／２结合能的位移证明，这些金属配合物是金属镶嵌在大π键体系共轭环中形成的金属卟啉配合物，不同锰卟啉中Ｍｎ２ｐ３／２结合能随卟啉取代基团电负性的降低而下降，不同锰卟啉的ＸＰＳ数据可用于推断配合物中取代基的结构。     

具有不同长度碳链的不对称四苯基卟啉及其金属配合物的合成

叶绿素、血红素、维生素B_(12)等都是不对称的金属卟啉类化合物叫,1975年Anton等首次合成了几种不对称取代四苯基卟啉及其金属配合物.其后,Leznoff,Molinaro等也发表了有关工作.我们模拟叶绿素的结构合成了三个系列13个具有不同长度碳链的单取代四苯基卟啉及其铜、锌、钴、镍等金属配合物(图1).用元素分析、红外光谱、可见吸收光谱和核磁共振谱等表征了它们的可能结构.     

大环配体过渡金属配合物——Ⅵ.四(对-二硫杂环己烯)四氮杂卟啉钒(Ⅳ)、锰(Ⅱ)和钼(Ⅴ)配合物的合成与表征

d过渡金属含硫四氮杂卟啉配合物,是一类新型功能性配合物,因其具有比金属卟啉、金属酞菁更为优异的光电和催化特性,故近十多年来颇受重视^[1-3]。我们对该类金属配合物及其自由配体的合成、性质和某些功能,正在进行广泛和深入的研究。本文简要报道标题配合物的合成、元素分析,红外光谱、电子光谱和电子顺磁共振谱的表征。     

稀土硝酸盐与2,6-二乙酰吡啶双缩苯甲酰肼配合物的合成和结构

2,6-二乙酰吡啶双缩萃甲酰肼(DAPBH)的过渡金属配合物的研究已见诸文献, 它的稀土盐的配合物仅有La(DAPBH)(NO3)3的十一配位分子结构的简报。考虑到镧系收缩的影响, 从镧到镥, 离子的配位空间减少和水合能增加, 它们的配合物将有不同的配位结构, 因此, 本文合成了部份稀土硝酸盐的配合物, 并对镱的配合物进行了单晶结构分析。     

新型Schiff碱单核配合物的合成及光谱特征

首次报道了新型Schiff碱配合物-双[N,N'-亚乙基-2,2'-(苯亚甲基)二(3,4-二甲基吡咯-5-醛缩亚胺)]合单金属配合物MH~2[M-Mn(Ⅱ)、Fe(Ⅲ)Cl、Cr(Ⅲ)Cl、Cu(Ⅱ)、Co(Ⅱ)、Ni(Ⅱ)、Zn(Ⅱ)的合成方法及光谱特征。     

5,15-二(对-取代苯基)八烷基卟啉及其金属配合物的合成

本文报道了五种5,15-二(对-取代苯基)-2,8,12,18-四乙基-3,7,13,17-四甲基卟啉(Ⅱa—Ⅱe)和五种5,15-二(对-取代苯基)-2,3,7,8,12,13,17,18-八甲基卟啉(Ⅰa—Ⅰe)以及它们的铜、铁、镍金属配合物的合成。这些化合物的结构均经元素分析、UV、~1HNMR和MS鉴定。芳环上不同取代基对卟啉成环反应有一定影响,拉电子基团有利于反应。其顺序如下:NO_2>H>CH_3>OCH_3>N(CH_3)_2。     

meso-四(对烷氧苯基)卟啉金属配合物的合成和性能研究(II)

合成了Zn、Pb两个系列卟啉金属配合物12个,其中6个为未见文献报道的新化合物,用元素分析、IR、UV、^1HNMR、MS确证了其结构。总结了Zn、Pb与卟啉类配体配合的IR、UV、^1HNMR判据。研究了这两个系列化合物的液晶性能,发现9个化合物具有液晶性。     

双卟啉双钴配合物与双氧作用的热力学及ESR研究

用电子光谱法研究了一种由六个碳原子的脂肪二酰胺链连接两个四苯基卟啉的双核钴(Ⅱ)配合物(Co~2PP~4)在DMF溶液中与双氧的可逆结合作用,测定了反应的Hill系数n=1.84,△G^0(298K)=-12.3kJ·mol^-^1,P~1~/~2=6.8kPa,热力学数据表明Co~2PP~4分子内两个金属卟啉环之间存在着强的协同作用。由双卟啉双钴(Ⅱ)配合物与双氧作用形成的配合物经ESR证实为超氧金属配合物,结合方式属于Co-O~2^-超氧类型。     

高分子键联金属卟啉的合成及催化性能的研究

本文合成了一种新型大环网状高分子聚苯乙烯键联的四(4-吡啶基)卟啉和四(4-氨基苯基)卟啉的金属配合物。考察了它们在正己烷羟基化反应中的催化性能。结果表明: 四(4-吡啶基)卟啉锰和高分子键联后稳定性增加, 且活性有所提高。     

银(Ⅰ)、锌(Ⅱ)与2，2′-(2-氨基-苯氧基)乙醚配合物的合成及晶体结构

The compound 2,2′-(2-amino-phenoxy)-ether[L] was synthesized from the reaction of diethylene glycol with tosyl chloride. AgClO₄ and ZnCl₂ each react with L to give two complexes [Ag₂L₂(H₂O)(ClO₄)₂] (1) and [ZnLCl₂]_n (2) respectively, and characterized by FTIR and single crystal X-ray diffraction. The results of structural analysis indicated that both complexes crystallize in the monoclinic system with space group P2₁/c. 1 is a dinuclear complex, and 2 forming 1D zigzag chain by Zn(Ⅱ) linking adjacent ligands in turn. When viewed from the top of the chain, the structure of 2 shows the unidimensional tube. CCDC: 748592, 1; 748594, 2.     

Synthesis of homoleptic barium alkoxides and aryloxides and their reactions with Al(CH(3))(3): a convenient route to heterometallic species

Reactions of metallic Ba with benzofuranol (dbbfoH) or diethylene glycol give homoleptic and homonuclear complexes Ba(dbbfo)(2)(dbbfoH)(2).3dbbfoH and Ba{O(CH(2)CH(2)O)(2)}{O(CH(2)CH(2)OH)(2)}(2) (60-89%). Both compounds and formerly described Ba{O(CH(2)CH(2)O)(2)Me}(2) react with Al(CH(3))(3) to yield trinuclear heterobimetallic low-coordinated barium compounds with structure and geometry depending on the reaction stoichiometry and crystallization procedure.     

网络型聚醚酯弹性体聚柠檬酸二甘醇酯的合成与性能

用一缩二乙二醇(二甘醇)和柠檬酸通过熔融缩聚的方法,合成了一种新型的网络型聚醚酯弹性体—po-ly(diethylene glycol citrate)(PDGC).用FTIR初步表征了预聚物的结构;通过ATR-FTIR、DSC、XRD等表征了PDGC的结构;测试了材料的静态水接触角、力学性能以及体外降解性能,考察了单体的摩尔比以及后期交联时间对材料上述性能的影响.     

A new family of Ru(II) polypyridyl complexes containing open-chain crown ether for Mg2+ and Ca2+ probing

Six polypyridyl bridging ligands BL(1-6) containing open-chain crown ether, where BL(1-3) formed by the condensation of 4,5-diazafluoren-9-hydrazine with 1,7-bis-(4-formylphenyl)-1,4,7-trioxaheptane, 1,10-bis-(4-formylphenyl)-1,4,7,10-tetraoxadecane, and 1,13-bis-(4-formylphenyl)-1,4,7,10,13-pentaoxatridecane, respectively, BL(4-6) formed by the reaction of 9-(4-hydroxy)phenylimino-4,5-diazafluorene with diethylene glycol di-p-tosylate, triethylene glycol di-p-tosylate, and tetraethylene glycol di-p-tosylate, respectively, have been synthesized. Reaction of Ru(bpy)(2)Cl(2).2H(2)O with BL(1-6), respectively, afforded six bimetallic complexes [(bpy)(2)RuBL(1-6)Ru(bpy)(2)](4+) as PF(6)(-) salts. Cyclic voltammetry of these complexes is consistent with one Ru(II)-centered oxidation around 1.32V and three ligand-centered reductions. These complexes show metal-to-ligand charge transfer absorption at 413-444 nm and emission at 570 nm. Binding behavior of complexes with alkali and alkaline-earth metal ions are investigated by UV-vis absorption, fluorescence, and cyclic voltammetry. Addition of alkali and alkaline-earth metal ions to the solution of [(bpy)(2)RuBL(1-6)Ru(bpy)(2)](PF(6))(4) all result in a progressive quenching of fluorescence, a hyperchromic effect of UV-vis absorption, and a progressive cathodal shift of Ru(II)-centered E(1/2). Ru-BL(2) and Ru-BL(5) show the highest binding ability toward Mg(2+) among the five cations examined while Ru-BL(3) and Ru-BL(6) exhibit good selective recognition ability to Ca(2+).     

直链醚席夫碱与Ln3+-Zn2+异双核配合物的合成和表征

合成并表征了直链醚席夫碱双水杨醛缩二甘醇二胺与Ｌｎ＾３＋和Ｚｎ２＋的８种异双核配合物「ＬｎＺｎ（ＳＡＬＤＡ０２（ＮＯ３）３」（ＮＯ３）２．２Ｈ２Ｏ（Ｌｎ＝Ｐｒ,Ｓｍ,Ｇｄ,Ｔｂ,Ｅｒ,Ｙｂ,Ｙ）。以ＩＲ,ＵＶ光谱,特别是＾１Ｈ及＾１３ ＣＮＭＲ谱等方法研究并讨论了配合物的合成方法,组成,结构及配位方式。     

DPPZ-铜(Ⅱ)-L-氨基酸配合物的电化学性质及SOD活性

应用NBT-光照法研究了配合物[Cu(DPPZ)(L-Val)(H2O)]ClO4.2H2O(1),[Cu(DPPZ)(L-Ile)]ClO4(2),[Cu(DPPZ)(L-Tyr)(H2O)]ClO4.1.5H2O(3)(DPPZ=二吡啶并[3,2-a:2’,3’-c]吩嗪,L-Val=L-缬氨酸,L-Ile=L-异亮氨酸,L-Tyr=L-酪氨酸)在水溶液中的SOD活性,并用循环伏安法研究了配合物的电化学性质.结果表明,三种配合物均具有良好的SOD活性,表观催化速率常数分别为2.27×107,1.46×107和1.23×107mol-1.L.s-1.     

双水杨醛缩环己二胺类西佛碱及其配合物的合成、性质研究

合成了两种双水杨醛缩环已二胺类西佛碱N，N’-(二羟苯次甲基)环已二胺(1)和N，N’-二(3，5-二叔丁基-2-羟苯次甲基)环已二胺(2)，以及它们的金属锌配合物(3)和(4)，通过核磁共振、元素分析和红外光谱确定了四种物质的结构，研究了它们的紫外吸收光谱、荧光光谱，测定了(3)和(4)的荧光量子效率．(4)中四个叔丁基的存在使其荧光量子效率提高．此类双西佛碱金属配合物可以应用于有机电致发光材料中．     

稀土与不同端基直链聚醚配合物的合成及其NMR研究

合成了稀土高氯酸盐分别与一缩二乙二醇二甲醚(EO_2Me_2)和一缩二乙二醇-二-(邻甲氧基苯基)醚[EO_2(MeOP)_2]形成的两系列17种新的配合物,经元素分析、IR、NMR表征,确定配合物组成为Ln_3(ClO_4)_9(EO_2Me_2)_5·18H_2O(Ln=La,Pr,Nd)和Ln(ClO_4)_3EO_2Me_2·8H_2O(Ln=Sm,Eu,Gd,Tb,Dy,Ho,Er,Yb,Y)及Ln(ClO_4)_3EO_2(MeOP)_2·6H_2O(Ln=La,Pr,Nd,Eu,Gd).讨论了它们的NMR及光谱等性质,研究了不同端基直链聚醚对配位作用的影响。     

Interpolymer complexes of copolymers of vinyl ether of diethylene glycol with poly(acrylic acid)

 The complex formation reactions of poly(vinyl ether of diethylene glycol) as well as vinyl ether of diethylene glycol–vinyl butyl ether copolymers with poly(acrylic acid) have been studied in aqueous and alcohol solutions. The formation of interpolymer complexes which were stabilized by hydrogen bonds was shown. The effects of molecular weight of poly(acrylic acid) and the nature of the nonionic polymer on the composition and stability of interpolymer complexes were clarified. The critical pH values of complexation were determined for different systems with various molecular weights and hydrophobic–hydrophilic balances. The stability of the interpolymer complexes formed in aqueous and alcohol solutions with respect to dimethylformamide addition was evaluated. The role of hydrophobic interactions and the presence of active groups on stability of the interpolymer complexes is discussed. Received: 23 July 2001 Accepted: 27 September 2001     

Nanoporous crosslinked macrocyclic polyethers based on diethylene glycol divinyl ether and their superbase complexes with KOH

Nanoporous (11–12 nm) crosslinked macrocyclic polyethers with vinyloxy and hydroxyl groups have been synthesized by the free-radical polymerization of diethylene glycol divinyl ether (AIBN, 80°C, i-octane), followed by acidic hydrolysis. It has been shown that the polymers react with KOH to form insoluble superbase complexes and alcoholates capable of catalyzing vinylation of ethylene glycol by acetylene.