稀土与8-羟基喹啉三元配合物的合成研究Ⅱ.甲基丙烯酸稀土与8-羟基喹啉三元固态配合物的合成与表征

稀土与８－羟基喹啉三元配合物的合成研究Ⅱ．甲基丙烯酸稀土与８－羟基喹啉三元固态配合物的合成与表征王学智（安徽机电学院食品工程系芜湖２４１０００）关键词稀土甲基丙烯酸８－羟基喹啉三元配合物Ｂｉｒｙｕｌｉｎａ［１］首次报导了甲基丙烯酸稀土的合成与表征。８...     

铕和镧与吡啶－2，6－二甲酸配合物的NMR研究

合成了稀土铕、镧与吡啶－２，６二甲酸形成的二元配合物及铕与邻菲罗啉和吡啶－２，６二甲酸形成的三元配合物。经元素分析确定该配合物的组成分别为二元：Ｎａ３［Ｅｕ（ＤＰＣ）３］·２Ｈ２Ｏ，Ｎａ３［Ｌａ（ＤＰＣ）３］·２Ｈ２Ｏ；三元：ＮａＥｕ（ＤＰＣ）２·ｐｈｅｎ·４Ｈ２Ｏ。用核磁共振研究了配体与稀土的配位方式，讨论了诱导效应、屏蔽效应及稀土离子的顺磁性对配合物化学位移和ＮＭＲ谱图的影响。ＮＭＲ研究表明，三种配合物具有相似的对称结构和相同的化学位移变化规律。吡啶－２，６二甲酸中的羧酸以单齿配位（整个分子为三齿配位），二元配合物中，铕和镧的配位数均为９，三元配合物中，铕的配位数最低为８。     

丙烯酸酯三元共聚物负载双硫铂配合物的合成及催化性能

二丙烯酸－１，４－丁二酯，丙烯酸甲酯，丙烯酸β－氯乙酯三元共聚，制得交联型丙烯酸酯三元共聚物。再依次与３，６－二硫杂１－辛醇，氯亚铂酸钾反应，得到二种新型的丙烯酸酯三元共聚物负载的双硫铂配合物。该配合物对１－十二碳烯，１－癸烯，苯基烯丙醚与三乙氧基硅烷的硅氢加成反应具有较高的催化活性。     

重稀土喹喔啉—2,3—二酸配合物的合成,表征及成键特性研究

重稀土喹喔啉－２，３－二酸配合物的合成、表征及成键特性研究徐志栋王敏（河北科技大学（中校区）化工系石家庄０５００１８）周玉昆冯殿忠（兰州大学化学系兰州７３００００）关键词喹喔啉－２，３－二酸稀土配合物成键特性中图分类号Ｏ６４１．４以喹喔啉为母核的芳香...     

稀土-8-羟基喹啉-核酸体系的荧光特性

报道了钪、钇、镧等三价离子在核酸存在下与８羟基喹啉（８ＨＱＬ）形成三元体系的荧光特性，对比核酸和稀土离子的种类对荧光发射的影响。结果表明有鱼精子ＤＮＡ（ＤＮＡｆｓ）＞小牛胸腺ＤＮＡ（ＤＮＡｃｔ）＞酵母ＲＮＡ（ＲＮＡｙ）的荧光增强顺序；稀土离子与８ＨＱＬ的摩尔比随稀土离子的种类发生变化，与ＲＥ３＋８ＨＱＬ配合物的摩尔比有较大差异。     

一种基于形成杂多核配合物的荧光增敏效应的研究（Ⅱ）──钴（Ⅱ）－7－（8－羟基－3，6－二磺基萘偶氮）－8－羟基喹啉－5－磺酸－硼（Ⅲ）三元体系的荧光性质及其分析应用

一种基于形成杂多核配合物的荧光增敏效应的研究（Ⅱ）──钴（Ⅱ）－７－（８－羟基－３，６－二磺基萘偶氮）－８－羟基喹啉－５－磺酸－硼（Ⅲ）三元体系的荧光性质及其分析应用熊国华，刘虹，俞英，黄坚锋（九江师范专科学校化学系，九江，３３２０００）（江西大学实...     

钴（Ⅱ）邻菲咯啉,8—羟基喹啉配合物＼Y型分子筛的制备,表征…

制备了钴（Ⅱ）邻菲咯啉，８－羟基喹配合物／Ｙ型分子筛，利用元素分析，ＴＧ－ＤＴＡ、ＳＥＭ、ＵＶ－Ｖｉｓ，ＢＥＴ及ＸＲＤ等方法确定了分子筛选中金属配合物的生成及其晶体结构，考察了实验参数对苯酚转化率及产物选择性的影响。     

铕和镧与吡啶—2,6—二甲酸配合物的NMR研究

合成了稀土铕，镧与吡啶－２，６－二甲酸形成的二元配合物及铕与邻菲罗啉和吡啶－２，６－二甲酸形成的三元配合物，经元素分析确定该配合物的组成分别为二元：Ｎａ３「Ｅｕ（ＤＰＣ）３」．２Ｈ２Ｏ，Ｎａ３「Ｌａ（ＤＰＣ）３」２Ｈ２Ｏ；三元：ＮａＥｕ（ＤＰＣ）２；ｐｈｅｎ．４Ｈ２Ｏ。用核磁共振研究了配体与稀土的配位方式，讨论了诱导效应、屏蔽效应及稀土离子的顺磁性对配合物化学位移和ＮＭＲ谱图的影响。     

希土水杨酸与8─羟基喹啉三元配合物研究

合成了六种希土（ＲＥ）－水杨酸－８－羟基喹啉三元固体配合物，其通式为ＲＥ（Ｈｓａｌ）２，ｈｑ（ＲＥ＝Ｙ，Ｌａ，Ｎｄ，Ｓｍ，Ｈｏ，Ｅｒ）。通过元素分析、摩尔电导、ＩＲ、Ｆａｒ－ＩＲ、ＵＶ－Ｖｉｓ、ＴＧ－ＤＴＡ分析，研究了配合物的组成、性质和成键特性。通过抑菌试验表明配合物对于霉菌具有抑真菌能力。     

锌与7—（2—羧基—4—苯偶氮）—8—羟基喹啉—5—磺酸的显色反应研究及茶叶…

本研究了新显色剂７－（２－羧基－４－苯偶氮）－８－羟基喹吉林 －５－磺酸与锌的反应条件，试验结果发现在乳化剂ＯＰ存在下，酒石酸介质中新剂与锌形成稳定配合物，其最大吸收波长为５００ｎｍ，表观摩吸光系数为１．１５×１０＾５Ｌ．ｍｏｌ＾－１，Ｚｎ＾ ２＋浓度在０－８μｇ／ｍＬ之间符合比尔定律，方法用于茶叶中微量锌的的测定结果满意。     

钒氧配合物[VOL(C9H6NO)]·CH2Cl2的合成与晶体结构

A oxovanadium(Ⅴ) complex of [VOL(C₉H₆NO)]·CH₂Cl₂[H₂L=2-hydroxy-1-naphthaldehyde 4-methoxy-benzoylhydrazone, C₉H₆NO^-=8-hydroxyquinoline anion] has been synthesized and characterized by elemental analyses, IR and single crystal X-ray diffraction. The crystal crystallizes in triclinic system, the space group is P1, with the crystal cell parameters a=1.087 0(2) nm, b=1.107 1(2) nm, c=1.269 3(3) nm, α=67.84(3)°, β=79.26(3)°, γ=73.85(3)° and V=1.353 1(6) nm³ , M_r=614.34, R=0.0503, wR=0.1409. The V(Ⅴ) atom is six-coordinated by one O atom of oxo group, two O atoms and one N atom of the tridentate hydrazone ligand, as well as one N atom and one O atom of 8-hydroxyquinoline ligand, thus defining a distorted octahedral VO(ONO)(NO) geometry. A two-dimensional supramolecular layer structure is formed through π-π stacking interactions. CCDC: 268672.     

Synthesis and characterization of triorganoantimony(V) complexes with bidentate ligands

Monochelated organoantimony(V) complexes of the type R₃Sb(OMe)L, where R = Me or Ph, and L is the anion of acetylacetone, 8-hydroxyquinoline, salicylaldehyde, o-hydroxyacetophenone or 2-hydroxy-1-naphthaldehyde have been obtained from triorganoantimony(V) dibromide and the sodium derivative of the ligands in a benzene-methanol mixture. Molecular weight determination in benzene reveals the monomeric nature of these complexes. IR and NMR data suggest that L acts as a bidentate ligand giving an octahedral environment for the antimony atom.     

2-羟基-3-对溴苯基马来酰亚胺的稀土络合物的合成及其研究

用2-羟基-3-对溴苯基马来酰亚胺的钠盐与无水RECl₃在DMSO溶剂中氧气氛下反应,制得了13种相应的稀土络合物,通过IR、UV、¹H NMR、¹³C NMR等波谱方法对其结构进行了测定,归属了波谱吸收峰,表明该络合物是通过去质子羟基氧与RE³⁺成键,邻位羰基不参与配位,并讨论了RE-O键的性质,络合物的组成为REL₃·nH₂O(RE=La-Lu,不包括Pm,Yb;n=1～4)。     

水合希土硝酸盐与本并及单环己基-12-冠-4配合物的合成、性质及晶体结构

在乙腈介质中合成了苯并－１２－冠－４（简称Ｂ－１２－Ｃ－４）和单环己基－１２－冠－４（简称Ｃｙ－１２－Ｃ－４）的六种希土配合物：ＲＥ（ＮＯ３）３·Ｂ－１２－Ｃ－４（ＲＥ＝Ｐｒ，Ｇｄ，Ｙｂ，Ｌｕ），ＲＥ（ＮＯ３）３·Ｃｙ－１２－Ｃ－４（ＲＥ＝Ｌａ，Ｌｕ）。研究了它们的ＩＲ及＾１ＨＮＭＲ性质，并测定了四种单晶的结构，用ＩＮＤＯ法计算了Ｌｕ（ＮＯ３）３·Ｂ－１２－Ｃ－４，Ｌｕ（ＮＯ３）３·Ｃｙ－１２－Ｃ     

Novel oxorhenium and oxotechnetium complexes from an aminothiol[NS]/thiol[S] mixed-ligand system

The simultaneous action of a bidentate aminothiol ligand, LnH, (n = 1: (CH3CH2)2NCH2CH2SH and n = 2: C5H10NCH2CH2SH) and a monodentate thiol ligand, LH (LH: p-methoxythiophenol) on a suitable MO (M = Re, 99gTc) precursor results in the formation of complexes of the general formula [MO(Ln)(L)3] (1, 2 for Re and 5. 6 for 99gTc). In solution these complexes gradually transform to [MO(Ln)(L)2] complexes (3, 4 for Re and 7, 8 for 99gTc). The transformation is much faster for oxotechnetium than for oxorhenium complexes. Complexes 1-4, 7, and 8 have been isolated and fully characterized by elemental analysis and spectroscopic methods. Detailed NMR assignments were made for complexes 3, 4, 7, and 8. X-ray studies have demonstrated that the coordination geometry around rhenium in complex 1 is square pyramidal (tau = 0.06), with four sulfur atoms (one from the L1H ligand and three from three molecules of p-methoxythiophenol) in the basal plane and the oxo group in the apical position. The L1H ligand acts as a monodentate ligand with the nitrogen atom being protonated and hydrogen bonded to the oxo group. The four thiols are deprotonated during complexation resulting in a complex with an overall charge of zero. The coordination geometry around rhenium in complex 4 is trigonally distorted square pyramidal (tau = 0.41), while in the oxotechnetium complex 7 it is square pyramidal (tau = 0.16). In both complexes LnH acts as a bidentate ligand. The NS donor atom set of the bidentate ligand and the two sulfur atoms of the two monodentate thiols define the basal plane, while the oxygen atom occupies the apical position. At the technetium tracer level (99mTc), both types of complexes, [99mTcO(Ln)(L)3] and [99mTcO(Ln)(L)2], are formed as indicated by HPLC. At high ligand concentrations the major complex is [99mTcO(Ln)(L)3], while at low concentrations the predominant complex is [99mTcO(Ln)(L)2]. The complexes [99mTcO(Ln)(L)3] transform to the stable complexes [99mTcO(Ln)(L)2]. This transformation is much faster in the absence of ligands. The complexes [99mTcO(Ln)(L)2] are stable, neutral, and also the predominant product of the reaction when low concentrations of ligands are used, a fact that is very important from the radiopharmaceutical point of view.     

酰腙氧钒(Ⅴ)配合物的合成、结构及其抑制幽门螺旋杆菌脲酶研究

本文合成了2个新的结构类似的酰腙氧钒(Ⅴ)配合物,[VOL(OCH3)(CH3OH)](L=L1=2-氯-N′-(5-氯-2-羟基苯亚甲基)苯甲酰肼(1);L=L2=2-氯-N′-(2-羟基-3-甲氧基苯亚甲基)苯甲酰肼(2)),并通过物理化学方法和单晶X-射线衍射表征了它们的结构。在每个配合物中,V原子都采取八面体配位构型,利用配体L中的3个给体原子和1个甲氧配体的氧原子定义其赤道面,利用1个酮氧原子和1个甲醇氧原子占据其2个轴向位置。本文还研究了这2个配合物对幽门螺旋杆菌脲酶的抑制活性。在浓度为100μmol.L-1时,配合物1和2对脲酶的抑制率分别为(82.0%±2.8%)和(28.2%±1.7%)。此外,还做了配合物和幽门螺旋杆菌脲酶的分子对接研究。     

Synthesis,crystal structure,and properties of a tetrairon cluster based on 2-methyl-8-hydroxyquinoline

The synthesis, structure, and magnetic properties of a tetrairon(III) complex [Fe₄(μ₂-O)₂Cl₄(L)₄]·0.5H₂O (1, L = 2-methyl-8-hydroxyquinoline), which was prepared under solvothermal conditions and characterized by IR spectra, elemental analysis, TG, and single-crystal X-ray crystal diffraction, are presented. Each Fe center adopts a distorted trigonal bipyramid geometry and is coordinated with three oxygen atoms, one nitrogen atom, and one chlorine atom. Each 2-methyl-8-hydroxyquinoline is coordinated to two Fe^III ions with μ₂-η²:η¹ coordination mode. The magnetic properties of the complex are dominated by antiferromagnetic exchange interactions.     

稀土与水杨醛-1H-苯并三唑乙酰腙配合物的合成及抑菌实验

SBTH;生物活性;稀土与水杨醛-1H-苯并三唑乙酰腙配合物的合成及抑菌实验