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The interaction between CaA and Cu and influence of ethylenediaminetetraacetic acid,solvent and pH on the interaction were also studied to help elucidate the detailed prooxidant mechanism using UV-visible spectroscopy, demonstrating that it is CaA phenolate anion,instead of the parent molecule,chelates with Cu as a bidentate ligand,hence facilitating intramolecular electron transfer between CaA and Cu.

可见分光光度计研究了CaA和Cu的相互作用以及EDTA、溶剂、pH对这种相互作用的影响，证实了CaA本身没有与Cu螯合，而是咖啡酸酚氧负离子作为双齿配体与Cu进行螯合，形成的络合物有利于分子内电子转移。

1 To mimic the active centers of tyrosinate iron enzymes whichcontain phenolate donors, new tripodal ligand, N-(2-hydroxybenzyl)-N, N-bis(2-benzimidazolymethyl) aminewhich contain imidazoleand phendate groups were designed and synthesized and its iron com-plexes 〓(2)(where Mim=N-Methylimidazole) and Fe 〓(3) were prepared andcharacterized by various spectroscopic methods.

1.1 为了模拟酪酸铁酶活性中心，设计并合成了含有酚羟基和苯骈咪唑基四齿配体N，N-(2-羟基苯)-N，N-二氨，并合成它的铁配合物：Fe〓、Fe〓〓(2)和Fe〓，并经各种谱学手段表征了这些铁配合物。

The maximal absorption band could be assigned mainly to intra-ligand charge transfer transition character. It mostly originated from transitions starting from the phenoxide side containing chlorine to pyridyl side.

最大吸收主要来自配体内电荷转移跃迁，电荷从苯酚环和氯向含氮的吡啶环跃迁。

We designed and synthesized a new type of chiral phosphine ligand 32 with rigidity skeleton.

另外，还构建了一种结构新颖，具有刚性骨架的手性双膦配体32。

It is shown from both the electronic and stereo structural analyses, that PDBP is a superior coordinate ligand as compared with TPP, which was employed in the rhodium/phosphonium catalyst for the hydroformylation reaction.

采用元素分析、红外、核磁等方法，对其结构进行了表征，并将PDBP用于丙烯氢甲酰化反应的催化剂配体。

The further study showed that flumazenil, the benzodiazepine antagonist, and picrotoxin, the ligand of picrotoxin site on GABA〓 receptor, significantly antagonized hypnotic activity of melatonin by using EEG analysis in rats.

当机体昼夜节律系统功能正常时，在六个昼夜不同时间点给予12小时光照／12小时黑暗下生活的小鼠褪黑素后，延长小鼠睡眠时间的峰值出现在光照期开始，谷值出现在光照末期。

By using radioactive ligand receptor binding assay and observing animal activities, this paper reports the effects of convulsants of picrotoxin, penicillin and kainic acid on the 3H GABA A binding in the cerebral cortex, hippocampus and cerebellum of mice.

采用放射配体受体结合分析法和动物行为观察，研究了致惊药印防己毒素(picrotoxin ，Pic)、青霉素(Penicillin ，PG)、红藻氨酸(kainicacid ，KA)对小白鼠大脑皮层、海马、小脑三脑区3 H GABA与GABAA 受体结合的影响。

However, none of current molecular mechanical force fields can exactly treat the polarization effects in protein-protein and protein-ligand binding, even for polarizable force fields.

然而，目前还没有任何一种分子力学力场能够处理蛋白质和蛋白质或者蛋白质和配体之间的极化效应。

And includes the following aspect: 1 The synthesis of dendritic polyvalent glycol-conjugates ligand were concluded which can provide a new method to find new medicine.

本文包括以下几个部分： 1 合成树枝状多效价糖苷配体是找到新的抗感染、抗病毒、抗HIV药物以及人体疫苗等的重要途径。

The integrated analytical results show that the novel ligand coexists in ketoform and enolform structures under the measuring conditions, the ketoform structure may change into the enolform structure during the coordination and bonds with the central ion by two O atoms of the enolized hydroxyl group of pyrazolone ring and H2O and the N atom of the imine group and the N atom containing H of benzimidazole ring by losing the proton. And the coordination number of these complexes is four.

综合各种分析结果显示：配体在测试条件下以酮式和烯醇式结构共存，配位时酮式可能转化为烯醇式结构，按去质子的方式以吡唑啉酮环羟基和H2O上的两个O原子以及亚胺基上的N原子和苯并咪唑环上的含氢N原子与中心离子成键，配合物的配位数为4。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。