查询词典 ligand

The X-ray analysis of the chiral macrocycle Ⅲb shows that the chiral ligand with acavity is rather rigid and strained. The unsymmetrical spatial structure of Ⅲb wellexplains the different recognition to chiral small molecules.

结果表明大环Ⅲb是具有一定大小空腔的扭曲型刚性分子，这种环系的不对称空间结构能够很好地解释它对手性小分子的不同识别作用。

The influence of ligand and cooperative metal on carbonyl insertion in heterobimetallic Rh-M species was investigated at the B3LYP level of density functional theory.

采用密度泛函方法研究了配体和协同金属对杂双核Rh-M金属配合物中羰基插入反应的影响。

The present study is involved in the expression of vitronectin , a ligand of integrin, on human spermatozoa and its role in fertilization; the expression of integrin α〓、α〓、β〓 sbunits on human and mouse oocytes and their relationship with maturation of oocytes; the reorganization of cytoskeletal protein, actin, of mouse oocytes mediated with RGD peptide binding with integrins; the roles and mechanisms of integrins in activation of mouse oocytes as trasmembrane signaling receptors, using the methos of cell culture, immunohistochemistry, flow cytometer, laser confocal microscope.

本课题采用细胞培养、免疫组化、流式细胞术、激光共聚焦显微技术进行以下四个方面的研究：整合素配体玻连蛋白在人精子的表达及其与精子功能状态及受精的关系：整合素〓在人、小鼠卵的表达及其与卵的成熟程度的关系：整合素介导小鼠卵内actin骨架蛋白的重组；整合素介导卵激活的早、晚期事件，包括卵细胞内钙离子浓度的变化及孤雌发育胚的形成，并探讨其机制。

One year later, Slit was confirmed as the ligand of Robo and the Slit-Robo signaling is know involved in the repulsive effect of the commission axons crossing the mid-line, and also involved in the repulsive effect of the guidance of neuronal migration and leukocyte migration as well.

而对 Slit 功能展开的研究起于1998年，先是发现其受体 Robo突变型果蝇的中线处交叉神经元的导向发生缺陷。1999年的一系列遗传和生化的研究又发现，分泌性因子 Slit 正是 Robo 的配体， Slit － Robo 信号起到了排斥一些轴突，使之无法穿过中线的作用。

The surface charge modifications of nanoparticles, caused by ligand coupling, were monitored by measuring their electrophoretic mobilities using laser-Doppler velocimetry.

纳米颗粒的表面电荷改变是由配体连接造成的，这种变化可用激光多普勒测速仪通过测量它们的电泳迁移加以监测。

A new Schiff baseH_(2Lhas been synthesized from sulfamethoxazole and complexes of this ligand have been prepared with it and characterized by elemental analysis,infrared spectrum,nuclear magnetic resonance,thermal analysis,molar electric conductance and solubility.

以磺胺甲基异口恶唑与对羟基苯甲醛合成一种新西佛碱(H2L)，并用此配体制备8个稀土配合物，通过元素分析、红外光谱、核磁共振、热分析、摩尔电导和溶解性试验对配合物进行了表征。

Samarium complex of this ligand [SmL(NO3)]NO3·2H2O has been prepared and characterized by elemental analyses, IR, UV and molar conductance.

在异丙醇和甲醇体系中硝酸钐与该配体反应合成了一种稀土希夫碱配合物[SmL(NO3)]NO3·2H2O。

The structures of ligand and the complexe were characterized by IR,UV and element analysis,and molar conductivity of silver complexe was determined.

通过红外光谱、紫外光谱、元素分析等手段对配体及配合物的结构进行了初步表征。测定了银配合物的电导性能。

One has the ability of photo-cleavage of DNA and another one as potential anti-cancer drug has the ability of oxidative cleavage of DNA. 1. As for the first system, a new ligand----Tpphz is used as the intercalator of the targeted compound. The 〓 is synthesized and characterized by elemental analysis,〓H NMR, molar conductivity, AgNO〓 titration, UV and fluorescence spectra.

核酸的光切割方面，我们选择了近年来新发现的一个配体Tpphz作为目标化合物的插入配体，合成了新颖的〓单核配合物，并通过元素分析、〓H NMR、摩尔电导测定、中心离子滴定法、紫外光谱和荧光光谱对此化合物进行了详细的表征。

In the third chapter, eight new complexes of 4, 6-dimethylpyrimidine 2-thioacetic acid with rare earth metals has been synthesized and characterized by means of elemental analysis, molar conductivity, IR,〓 NMR and TG-DTA. The general formula of the complexes is Ln〓(n=4 or 5). In the complexes, the deprotonated ligand coordinated to the rare earth metal ions in chelate bidentate mode. 4 or 5 molecular of crystal water existed in the complexes.

第三章合成了八种4，6-二甲基嘧啶-2-硫代乙酸的稀土配合物，通过元素分析、摩尔电导、红外光谱、核磁共振氢谱和热重-差热对配合物进行了表征，研究结果表明，配合物的组成为Ln〓n=4或5），在配合物中配体羧基脱去质子后采用螯合双齿的方式与稀土离子形成配位键，同时，配合物中含有4或5个结晶水。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了