查询词典 ligand

The X-ray structure analysis reveals that the metal is in a square-planar N2O2 coordination environment formed by the phenolate-O, the imine-N and the deprotonated amide-O atoms of hydrazone ligand and the N atom of Himdz.

配合物的晶体结构分析表明，中心金属通过酰腙配体的酚基氧原子、亚胺基氮原子、去质子酰胺氧原子以及咪唑的氮原子形成平面四方形的N2O2配位环境。

Benzaldehyde nitrogen mustard isonicotinoyl hydrazone was synthesized according to literature method. The copper , cobalt , nickel , chromium , iron , zinc and cadmium complexes of it were prepared and characterized by elemental analysis, IR, UV-vis, NMR and EPR spectra. The cytotoxicity effect of the complexes was examined on SMMC-7721 cell line. Results show that the complexes have definite antitumor activity and the synergic effect between chromium and the ligand.

依照文献合成了异烟肼苯甲醛氮芥腙及其铜、钴、铬、镍、铁、锌和镉配合物并用元素分析、红外、电子光谱、核磁共振及电子顺磁共振光谱，对这些配合物进行表征，确认了它们可能的立体结构，并研究它们对SMMC-7721人肝癌细胞的作用，结果表明它们均有一定的抗肿瘤作用，发现铬与配体存在有协同作用。

In this paper, with 2-oxo-propionic acid salicyloyl hydrazone as a ligand, one calcium complex, three copper complexes and thirteen rare earth(RE=La, Ce, Pr, Nd, Sm, Eu. Gd, Tb, Dy, Er, Tin, Yb and Lu) complexes have been synthesized. The crystals of four complexes were obtained, and the crystal structures were determined by single crystal X ray diffraction. One of the crystals is calcium complex, the other are binary and trinary complexes of copper.

本文选用2-羰基丙酸水杨酰腙作为配体，在水中分别与钙、铜、稀土(RE=La、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Dy、Er、Tm、Yb和Lu)的盐反应，共制得了17种未见文献报道的配合物，另外还培养了2-羰基丙酸水杨酰腙、咪唑与铜、钙的二元及三元配合物的四种单晶，对La-Gd的稀土的配合物进行了溶解热的测定，并用Gauss-98软件包对铜的配合物进行了有关量化计算。

Thermal reaction of Ru312 with unsymmetrical Fv ligand 2-(tert-butylcyclopentadienyl)-indene provided [5:5-(tBuC5H3)(C9H6)]Ru24 (2) in good yield.

羰基钌与不对称的二氢富瓦烯配体2--茚在加热条件下反应高产率地生成化合物 [5：5-(tBuC5H3)(C9H6)]Ru24 (2)。

Recently open-chain marocyclic ligand and then lanthanide complexes have attracted much attention mainly because the ligands have the unique molecular structures: changeable chain, inflexibly terminal group and high selectivity and coordination to lanthanide ions.

一个优良的发光器件必须具备以下几个条件：配体对金属离子有较高的选择识别性能；配体含有共轭发色团有利于能量从配体向中心离子转移；配合物具有相对较高的动力学和热力学稳定性。

These kinds of complexes have steady thermodynamics property and abundant information of photochemistry and photophysics,which can bond with DNA by the mode of insert,static,chimb-face combine.In this paper,bipyridyl was selected as ligand.

金属吡啶配合物与DNA相互作用的研究一直是生物无机化学领域十分活跃的研究课题，此类配合物的热力学性质稳定，光化学和光物理信息丰富，能够以插入、静电和沟面结合三种方式与DNA作用。

Using 1,3-dicyanobenzene as a precursor, we have obtained two coordination polymer of rare earth metal bridged by isophthalato ligand, Eu complex (4) and Sm complexe coordinated (5). X-ray single crystal diffraction investigation confirms that complex 4 and 5 are isomorphous with near isostructural 〓 unit.

以1，3-苯二氰为前体，合成了两个新的稀土金属与间苯二甲酸根配体桥联的聚合物：间苯二甲酸根配体配合的铕和钐化合物，4和5.X-射线衍射结构分析表明化合物4和5均具有〓基本结构单元且两者结构类似。

These results were different from the observation in the reaction of Cp2LnNPr2 and PhEtCCO,indicating that ligand, steric effect, electronic effect and solvents have an important effect on the insertion of a ketene into the Ln-N bond.

与phEtCCO不同的是，phZCCO偶联插入LoN键形成的新配体不发生1，5一H迁移的异构化反应，可以直接分离得到苯环参与共扼加成反应的中间体CpZLn〔oe(e6HSCphCON'p几)CphZLn-Er(11，孔(12)，Y(13)。

To find better sensitizers of lanthanide ion the design of ligand is the key strategy.

设计配体分子结构是寻找稀土离子发光敏化剂的关键所在。

These mutations greatly changed the level of protein synthesis, lipogenesis and JAK2 phosphorylation stimulated by GH, although they did not affect the expression of the GHR and ligand binding.

研究结果表明豚鼠GHR中的一些氨基酸残基的取代并不影响生长激素通过它而诱导的细胞事件，而另外一些氨基酸残基的取代，例如168位的酪氨酸和332位的丝氨酸分别用在其它种属GHR中高度保守的精氨酸和酪氨酸的取代后，则明显地影响着豚鼠GHR介导的GH诱导的生理效应。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。