配合物与载体相互作用的研究

本文研究了配合物与载体的相互作用。载体浸渍于配合物的溶液时,两者间的相互作用可分成四类:(1)无明显的化学作用;(2)配合物与载体通过桥联的配体作用;(3)载体阳离子与解离的配体作用;(4)载体促进金属水合离子的水解。     

配位化合物中配体分子间的弱相互作用

配合物分子内和分了间的弱相互作用是从配位化学到超分子化学的桥梁，本文混配配合物中的配体间相互作用与其稳定性的关系入手，讨论了配合物中可能存在的各类非共价作用情况及其影响因素，关重讨论了配合物分子间的弱相互和与超分子化学的关系。     

铁（Ⅲ）核苷酸配位化合物与转铁蛋白的相互作用

铁（Ⅲ）核苷酸配位化合物与转铁蛋白的相互作用王继波，赵辉，孙衍增（青岛医学院化学教研室青岛２６６０１２）关键词转铁蛋白，核苷酸，动力学转铁蛋白广泛存在于人体细胞及体液中［１～５］，有许多关于铁在小分子配体与转铁蛋白之间交换的研究［６，７］，但铁（Ⅲ）...     

配位化合物浅议

This paper discusses the generation and development of the theory of coordination compounds, providing in spiration for teaching and research.     

光电功能配合物及其组装

从分子水平上研究具有光电功能特性的分子材料是当前化学的一个重要领域。本文以一些实例简短的介绍了我们近年来在光电功能配合物及其组装研究中的部分进展，强调了从超分子相互作用及分子识别在分子设计兼具无视和有机优点的功能配合物材料中的作用。     

Intermolecular Interactions in Crystals of the Photosensitive Coordination Compounds of Zinc(II)

Russian Journal of Coordination Chemistry - The distribution of the electron density function in crystals of {[ZnBpe(Me2Mal)] · H2O}n (I) and [Zn(H2O)4Bpe2](HEt2Mal)2 (II) is obtained...     

A CuCN-Based Coordination Polymer with Abundant Supramolecular Interactions

Solvothermal reaction of copper(I) cyanide (CuCN) with triphenylphosphine (Ph3P) in anhydrous tetrahydrofuran (THF) leads to a CuCN-based coordination polymer Cu3(CN)3(PPh3)4 (1) by using standard Schlenk techniques. This complex crystallizes in triclinic,space group P1 with a = 13.281(7),b = 13.330(7),c = 20.654(11) ,α = 103.028(5),β = 96.824(5),γ = 101.916(5)°,V = 3433(3) 3,Dc = 1.275 g/cm3,Z = 2,C75H60Cu3N3P4,Mr = 1317.76,μ = 1.057 mm-1,λ(MoKα) = 0.71073  and F(000) = 1356. 6975 observed reflections with I 2σ(I) and 766 parameters gave R = 0.0669,wR = 0.1403 and S = 1.005. The structure exhibits a special stair-like chain along the [111] direction constructed from cyanide groups alternately connecting the Cu(I) and Cu(PPh3)2 moieties. These stair-like chains are further stacked together via abundant π-π and C-H···π interactions to form a 3-D structure.     

光谱法研究有机农药污染物与DNA的相互作用

利用紫外光谱、荧光光谱及圆二色谱(CD)等光谱方法研究了有机农药敌敌畏(DDVP)、乐果(DIM)、氧化乐果(OME)及生物农药申嗪霉素的有效成分吩嗪-1-羧酸(PCA)与端粒脱氧核糖核酸(DNA)间的相互作用。 结果表明,有机农药分子可能主要以嵌入模式与DNA结合,DDVP、DIM、OME以及PCA与端粒DNA之间的表观结合常数分别为：1.17×106、1.48×106、4.52×105和1.80×106 L/mol,与DNA结合能力的大小顺序为PCA＞DIM＞DDVP＞OME。 这些有机农药分子明显不利于DNA双螺旋结构的稳定性。 有机农药分子的嵌入削弱了DNA碱基对之间的π-π堆积作用,对DNA的二级结构有一定的影响,使得DNA的双螺旋结构变得松散。     

碱性橙与蛋白间的特异性与非特异性作用荧光光谱比较

将碱性橙与抗体的作用、碱性橙与牛血清白蛋白(BSA)间的作用分别作为特异性作用和非特异性作用模型,采用荧光光谱法固定激发波长为280 nm,扫描不同温度下碱性橙与抗体和牛血清白蛋白两种相互作用,在300～600 nm的发射波长,比较了两种相互作用的差异.结果表明,碱性橙与抗体结合为单一的静态猝灭过程,二者之间的作用力主要为静电作用力;在溶液中,二者以摩尔比1∶1结合,结合常数为3.88×104 L/mol(25.C),3.73×104 L/mol(37.C)和2.35×104 L/mol (45.C);碱性橙距抗体分子色氨酸残基最短距离(r)为5.52 nm.碱性橙与BSA的结合也为静态猝灭,作用力为静电作用力.但碱性橙与抗体作用过程中形成了激基复合物,与BSA则不形成激基复合物.     

气相色谱法研究聚辛烯-1与不同溶剂的热力学相互作用

用气相色谱法测定了聚辛烯－１与８种溶剂的Ｆｌｏｒｙ－Ｈｕｇｇｉｎｓ相互作用参数χ１和聚辛烯－１的溶解度参数,确定了χ１与温度的数学关系式。测定结果表明聚辛烯－１溶于正辛烷是一个放热过程。     

Strong Metal-Support Interactions through Sulfur-Anchoring of Metal Catalysts on Carbon Supports

In supported metal catalysts, the supports would strongly interact with the metal components instead of just acting as a carrier, which greatly affects both of their synthesis and catalytic activity, selectivity, and stability. Carbon is considered as very important but inert support and thus hard to induce strong metal-support interaction (SMSI). This mini-review highlights that sulfur—a documented poison reagent for metal catalysts—when doped in a carbon supports can induce diverse SMSI phenomenon, including electronic metal-support interaction (EMSI), classic SMSI, and reactive metal-support interaction (RMSI). These SMSI between metal and sulfur-doped carbon (S−C) supports enables the catalysts with extraordinary resistance to sintering at high temperatures of up to 1100 °C, which allows the general synthesis of single-atom, alloy cluster, and intermetallic compound catalysts with high dispersion and metal loading for a variety of applications.     

酞菁配合物的结构与气敏性

综述了酞菁配合物的气敏机理及其结构与气敏性之间的关系。阐述了酞菁环的电子结构是其具有气敏性的基础,讨论了配合物中的中心原子和取代基团对配合物气敏性的影响。     

人血清白蛋白与酸性铬兰K相互作用机理的光谱学

人血清白蛋白;酸性铬兰K;荧光光谱法;傅立叶变换红外光谱;二级结构     

New Coordination Compounds Based on a Pyrazine Derivative: Design,Characterization, and Biological Study

New coordination compounds of Mn(II), Fe(III), Co(II), and Ni(II) and the biologically active ligand L (N′-benzylidenepyrazine-2-carbohydrazonamide) were synthesized and characterized by appropriate analytical techniques: elemental analysis (EA), thermogravimetric analysis (TG–DTG), infrared spectroscopy (FTIR), and flame-atomic absorption spectrometry (F-AAS). The biological activity of the obtained compounds was then comprehensively investigated. Rational use of these compounds as potential drugs was proven by ADME analysis. All obtained compounds were screened in vitro for antibacterial, antifungal, and anticancer activities. Some of the studied complexes exhibited significantly higher activity than the ligand alone.     

Synthesis of Biologically Active Carvacrol Compounds using Different Solvents and Supports

Natural monoterpenoids have been documented for their acute toxicity and repellent, antifeedent, reproduction inhibitory, and insecticidal actions. The present work aims to derive a variety of ether and ester compounds using polymer‐supported reactions from the polymer‐supported carvacrol anion was reacted with alkyl halides and acid chlorides to afford carvacryl ethers and esters, respectively. Furthermore, a special study on the effect of different solvents and supports revealed that Amberlite IRA 400 (chloride form) was found to be the best polymer support and acetone among the solvents.