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A series of lanthanide complexes (Ln = Er, Nd, Yb) with infrared emission properties were designed and synthesized by using different anionic ligands [1 -phenyl-3-methyl-4-(4-tertbutylbenzoyl)-5-pyrazolone and l-phenyl-3-methyl-4--5-pyrazolone and 2-naphtoyl trifluoroacetone] and netural ligands (2,2-dipyridine, phenanthroline, triphenylphosphine oxide and water). Three crystal structures of these complexes were obtained and structure studied, and the properties of photoluminescence and fluorescent lifetime were studied in detail.

我们通过选用不同的第一配体[1-苯基-3-甲基-4-(4-异丁酰基)-5-吡唑酮，1-苯基-3-甲基-4-(4-叔丁基苯甲酰基)-5-吡唑酮和2-萘基三氟乙酰丙酮]和第二配体(2，2-联吡啶，邻菲啰啉，三苯基氧膦)合成了16个稀土红外配合物(Ln=Er，Nd，Yb)，获得了其中三个配合物的单晶结构，研究了这些稀土红外配合物的光致发光和荧光寿命等性质。

In this thesis, on the one hand, two new tripodal ligands and twenty-three of their lanthanide complexes were synthesized, and their fluorescence properties were investigated, on the other hand, nine new copper and silver complexes with six kinds of tripodal ligands were synthesized and their crystal and molecular structures were determined by X-ray diffraction analysis.

本论文一方面合成了两个新三脚架配体的23个稀土配合物，并对它们的发光性能进行了探讨；另一方面得到了涉及六种三脚架配体的9个铜、银配合物，并测定了它们的晶体结构。

In order to investigate the relationship between the open-chain ligands and metal ions, and the possibility of the metal complexes used as electroluminescent materials, a new naphthol schiff base ligand which is a open-chain crown and its four transition metal complexes, a new amide type tripodal ligand containing heterocyclic ring, two tripodal ligands (H〓L〓 and H〓L〓) containing phenol schiff bases and their rare earth complexes were synthesized and characterized.

为了进一步研究和探讨开链配体与金属离子的配位作用，以及金属配合物作为电致发光材料的可能性，我们设计合成了含萘酚环的Schiff碱开链冠醚H〓L〓及四种过渡金属(Zn、Ni、Co、Cu)配合物，两个含酚羟基的Schiff碱三足配体H〓L〓和H〓L〓及稀土配合物，一个含杂环的酰胺型三足配体L〓，培养了配体L〓的单晶，确定了其晶体结构。

With two tripodal ligands, dtma and tmpa, dtma=diethylenetriamine-N'-acetate and tmpa=tris(2-pyridyl-methylamine and a polyamine ligand, trien (=triethylenetetramine), serving as terminal ligands, we synthesized 19 species of new imidazolate -bridged Cu-Zn, Zn-Zn and Cu-Cu, and other relating compounds, in which 〓 and 〓 complexes are model compounds of Cu, Zn-SOD.

用不等臂三脚架dtma(diethylenetriamine-N'-acetate)、直链trien和等臂三脚架tmpatris(2-pyridyl-methyl-amine为配体，合成了一系列咪唑桥联Cu-Zn、Zn-Zn和Cu-Cu等有关19个新化合物，其中两个异双核〓Cu〓和〓〓配合物为Cu，Zn-SOD活性中心的模型化合物。2。

The effect of the concentration, pH of several ligands such as acetate, oxalate, tartrate and phosphate solution and their orders added on the adsorption and activity of BSA and acid phosphatase on yellow brown soil, latosol, kaolinite, goethite and δ-MnO〓 was first systematically studied by using batch and FTIR methods after analyzed and studied the relative literature that reported in the world. The impact of these ligands on the adsorption mechanism and secondary structure of protein was simultaneously engaged.

论文在分析总结了国内外有关研究的基础上，用批量法和傅立叶变换红外光谱法首次系统地研究了乙酸、草酸、酒石酸和磷酸几种配体的浓度、pH及加入顺序对牛血清白蛋白、酸性磷酸酶在黄棕壤、砖红壤、高岭石、针铁矿和二氧化锰表面的吸附行为及活性的影响，探讨了这些配体对蛋白吸附机理及二级结构的影响。

QN 〓PHAL,〓PHAL and 〓PHAL were quaternized by refluxing with benzyl bromide to give ligands 8, 9 and 10 respectively. 2. The chiral ligands were applied to the AD reaction of olefins with NMO as co-oxidant and PEG (400 MW) or PF〓 as reaction media.

以奎宁和奎尼定为原料分别与1，4-二氯-2，3-二氮杂萘反应制备〓PHAL和〓PHAL，然后通过〓PHAL、〓PHAL及〓PHAL与苄基溴的季铵化反应制备单季铵盐手性配体8、9和10。

Some stimulators, including viruses, tumor cells and hot shock, could promote the expression of NKG2 receptors and their ligands via activating certain transcription factors which are capable of up-regulating NKG2 promoters' activity. Meanwhile, epigenetic mechanisms including DNA methylation and histone posttranslational modifications are also critical to expression of NKG2 receptors and their ligands and may control the clonally distribution of some NK cell receptors.

病毒、肿瘤和热休克等刺激可以通过激活相应的转录调节因子，提高启动子活性而上调NKG2家族受体及其配体的表达，而启动子区DNA的甲基化状态、组蛋白的乙酰化和甲基化等表观遗传调控，在NK细胞受体及其配体的表达方面亦起重要作用，并决定NK细胞受体的克隆性分布。

In terms of the obtained values of parameters, it is demonstrated that the covalency of the bonding between Mn〓 and ligands in SrTiO〓: Mn〓 is stronger than the one of the bonding between Cr〓 and ligands in SrTiO〓: Cr〓.

通过分析得到的常压参量值，揭示了在SrTiO〓：Mn〓中Mn〓与配位体之间的共价作用比SrTiO〓：Cr〓中Cr〓与配位体之间的共价作用更强。

First, the significant of co-factor InsP6 and center water in the mechanism of auxins are explored by docking; second, the experiments that compared with the docking rusults of two situations involving fully rigid and selective flexible of active residue of the receptor TIR1 illuminate that selective flexibility docking by AutoDock4 reports more rational results, so that, AutoDock4 dockings are implemented with TIR1-Auxins; third, AutoDock4 docking by TIR1-Auxins-Aux/IAA illuminates that auxin as a molecular glue enhances the interaction between TIR1 receptor and Aux/IAA substrate by the weak interactions, such as hydrogen bond and hydrophobic interaction, furthermore, the weak interactions between receptor protein and ligands greatly influence on auxin activity of auxin ligands.

首先， 通过分子对接计算研究辅酶InsP6以及中心水分子在生长素反应中的重要作用；其次，比较受体大分子完全刚性以及活性残基部分柔性的两种情况下的分子对接结果，说明AutoDock4实现了受体分子活性残基的部分柔性而使对接结果更加合理，进而使用AutoDock4方法对TIR1-Auxins体系进行对接计算；最后，对TIR1-Auxins-Aux/IAA体系进行分子对接计算，结果表明，生长素配体分子作为&分子胶水&直接与受体大分子TIR1以及底物多肽Aux/IAA形成强的弱相互作用，如氢键作用、疏水相互作用，促进了受体TIR1与Aux/IAA底物之间的结合，进而说明氢键作用和疏水相互作用等弱相互作用对于生长素分子的活性具有很大的影响。

The complexes 7 and 8 with mixed ligands 1, 2-bidentate thiolate and monodentateP〓 or PBu〓 ligands were synthesized from "building block"〓 L = P〓 or〓 through "trans-substitution" reaction of S and N atoms from mpt〓.

在14中，Zn为〓四配位的四面体构型，并通过分子内和分子间氢键形成〓维链。15中，Zn为〓五配位的四方锥构型，配位的〓来自2，2'-二硫水杨酸发生的脱硫反应。

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