查询词典 ligand

The experimental results showed that when AcO-or other anion s were added to a solution consisting of 1,5-(di-benzaldehyde) dithiocarbohydrazone and Hg2+(at a ratio of 1∶2),a hypsochromic shift took place on the maximum ultraviolet absorption peak of the ligand.

设计合成了配体1，5-二双缩二氨基硫脲及其金属配合物，探讨了不同金属阳离子对1，5-二双缩二氨基硫脲紫外吸收光谱的影响，并将标题化合物应用于阴离子识别。

A new fused polycyclic indoline compound was synthesized from aniline,with the key step of Pd-catalyzed tandem cyclization using hydroquinidine as the ligand and molecular oxygen as a green oxidant.

以芳香氨为原料，通过烯丙基化、重排、酰基化及钯催化的氧化环合反应合成了一种新的氮杂三环吲哚啉化合物，其结构经1H NMR，13C NMR，IR及HR-MS表征。

We studied the fluorescent capability of Binolate lanthanide complexes. Thefluorescent analysis shows that both ligand and complexes exhibit luminescence. Insolid state and solution, they have the different luminescence mechanism, intensity andcolor. So we can synthesize the complexes of dissimilar fluorescence performance bychanging the state and solvent polarity. According to the literatures, the complexes playan important role in luminescence material and probe with the development of theinformation technique.

对合成的八个邻萘酚稀土配合物进行发光性能研究，通过荧光光谱分析显示，配体和配合物都能够发出荧光，并且在固体状态和溶液中的发光机制、光强度及发光颜色都不同，所以通过改变邻萘酚稀土配合物的状态以及所选溶剂极性的不同，可以得到荧光性能不同的邻萘酚稀土配合物；根据查阅的文献可知，这类配合物在发光方面的应用很少，所以在当前信息显示技术高速发展的今天，邻萘酚类发光稀土配合物在发光器件、荧光探针等材料的研究领域当中不仅具有理论意义还有实际的应用价值。

The results show that the complex ［Ru2］2+ intercalates into the DNA base pair via the intercalative ligand.

结果与结论所合成的配合物结构得到确证，该配合物与DNA之间通过插入作用结合。

The results show that the complex [Ru2](superscript 2+) intercalates into the DNA base pair via the intercalative ligand.

结果与结论所合成的配合物结构得到确证，该配合物与DNA之间通过插入作用结合。

Displayed similar photophysical changes in the presence of DNA. But the complex increased the viscosity of DNA weakly. This suggests that due to the constraint from the rigid structure of the macrocyclic ligand, the complex binds to DNA by weak intercalative interaction.

在光谱方面也出现了类似的现象，但DNA的粘度却略有增加，说明环上的苯环可能由于受到整个配合物结构刚性的限制，只能以较弱的插入方式与DNA作用。

The intramolecular hydrogen bonding can extend the ligand planarity and increase the intercalative ability of the complex to DNA. It is concluded that the torsion between the aromatic rings of ligands, due to introduction of the bulky substituent, results in the complexes only to partially or non-classically intercalate into DNA.

能够使配体平面性增大的分子内氢键的形成，有利于配体对DNA的插入作用；但是，由大体积的取代基所引起的配体芳环间的扭转，致使配体只能&部分地&或&非经典地&插入DNA碱基对。

We have developed a simple and easy-handling procedure for copper-catalyzed cyanation of aryl halides using K4[Fe_6] as the cyanide source. The present procedure has ligand- and base-free advantages, and was accomplished under the conditions of exposure to the air without degassing of the solvent.4. We carried out the selective control of preparation for phenyl ether and phenol from iodobenzene with 10 mol% of Cu_2·H_2O as the catalyst under the condition of exposure to air.

这个程序有无配体无碱的好处，并能够在暴露于空气的条件下进行，溶剂也不用脱气。4、空气气氛下，用10 mol%的Cu_2·H_2O催化碘苯偶联，实现了制备二苯醚和苯酚的选择性控制：即在有(来源：Aa955BC55论文网www.abclunwen.com)机溶剂NMP中实现了碘苯直接制备二苯醚的Ullmann反应，在H2O中实现了碘苯直接制备苯酚。

Reaction of α,α,α,α-tetra (o-aminophenyl) porphyrin with isonicotinic acid yields the ligand 1b bearing two coordination sites whose structure has been verified by IR、UV-Vis、〓H NMR and MS spectra.

以α，α，α，α-四卟啉为母体，经过与异烟酸缩合反应得到具有两个配位位置的配体1b，配体的结构经过IR、UV-Vis、〓H NMR、MS验证。

In this dissertation, we have constructed series of isophthalate lanthanide coordination polymers from the alterations of isophthalic acid ligand, and systemically studied the influence of the alterations on crystal structures of complexes.

而本文则从配体的变化出发，构筑系列间苯二羧酸类稀土配合物，系统性地研究配体的变化对稀土配合物的晶体构型的影响。

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