查询词典 ligand

With high purity in 8 h when the mole ratio of tungstenic acid : acidic inorganic ligand : cyclohexene:hy...

当磷酸用量为2.5 mmol时，己二酸产率和纯度均较高。

In the absence of organic solvent and phase-transfer catalyst, the catalytic oxidation of cyclohexene to adipic acid with aqueous 30% hydrogen peroxide by weight can be efficiently catalyzed by tungstenic acid /inorganic acidic ligand.

以钨酸／无机酸性配体为催化体系，在无有机溶剂和相转移剂的情况下，催化过氧化氢(质量分数30％)氧化环己烯合成己二酸。

In the absence of organic solvent and phase-transfer catalyst, the catalytic oxidation of cyclohexene to adipic acid with aqueous 30% hydrogen peroxide by weight can be efficiently catalyzed by tungstenic acid/inorganic acidic ligand.

以钨酸／无机酸性配体为催化体系，在无有机溶剂和相转移剂的情况下，催化过氧化氢(质量分数30％)氧化环己烯合成己二酸。结果表明，以钨酸／磷酸催化氧化环己烯的催化效果最优。

SAA ligand Lg could catalyze asymmetric addition of phenylacetylene to unactivated aromatic ketones in high yields (up to 83%) and high enantioslectivities (up to 83%ee).

SAA配体Lg用于催化炔基锌对未活化酮的不对称加成反应，对于芳香酮的催化反应，收率可达83%，对映体选择性可达83%ee。

Mn(H_3biim)_2_2Cl_2 and Cd(H_3biim)_2_2Cl_2 have been synthesized from H_2biim, their structures were determined by X-ray crystallography. The two complexes have similar structures and both are neutral compounds. One N atom in H_2biim is protonated, forming a H3biim+ cation. The later is an unidentate ligand, the central metal, Cd or Mn is six coordinated and adopts a distorted octahedral environment.

合成了联咪唑锰配合物Mn(H_3biim)_2_2Cl_2和联咪唑镉配合物Cd(H_3biim)_2_2Cl_2，晶体结构表明这两个配合物结构相似，均为中性化合物，联咪唑的一个氮原子被质子化，形成一价阳离子(H_3biim~+)，它采取单齿配位，中心Mn原子是六配位，其配位环境为畸变的八面体。

Objective To explore the expression of Fas ligand in urogenital malignant cell lines and renal cell carcinoma.

摘 要：目的明确Fas配体在泌尿生殖肿瘤细胞系及肾癌组织中的表达情况。

Objective To explore the expression of Fas ligand in urogenital malignant cell lines and renal cell carcinoma.

Fas系统（包括Fas分子和FasL及其信号传导分子）在恶性疾病中的生物学作用还没有完全了解，但它在凋亡中的作用表明了它可以做为肿瘤生长的抑制因子。

According to Johnson's Rule and IR spectra, their possible structures are suggested. The bonding parameters of those complexes are calculated by ESR parameters. And the crystal field parameters are calculated by using electronic spectral data. It can be seen that the vanadyl complexes in the solution are ionic complexes and that the α〓 values of those complexes decrease following the increasing of the N donor replacing the O donor of water on the equatorial plane in those complexes. This means that the covalent bonding between vanadium and ligand increases as Ser, Phen or Bipy replace water ligands. The results show the competitive coordinate law that the coordination reactivity of Phen and Bipy is much stronger than that of Ser. The simulation program of ESR is compiled by the theory of ESR in the present work.

测定了VO-丝氨酸二元体系、VO-丝氨酸-邻菲咯啉三元体系和VO-丝氨酸联吡啶三元体系在不同酸度下（pH=1.0～14.0）的乙二醇／水（V／V=1：1）溶液低温ESR谱，发现不同pH下，溶液中具有不同组成的配合物，根据不同pH下ESR谱的变化，利用Johnson的加合规则并结合红外光谱，推测了它们在溶液中的可能结构；利用波谱参数计算了配合物键参数；利用电子光谱数据计算了配合物的晶体场参数，讨沦了它们的成配特性，结果表明：VO配合物属离子型配合物，随取代水分子的配体（Ser、Phen或Bipy）数目增加，键参数减小，配合物共价性增强，同时得出这些体系中，生物配体竞争配位规律：Phen和Bipy与VO的配位能力比Ser强。

However, higher concentration of CRP may increase the expression of protein and mRNA of inflammatory factor in endothelial cells; 2 Higher concentration of CRP may participate in the development of inflammatory process in endothelium by the mechanism that CRP induce cells apoptosis and activate signal pathway involved in cell proliferation. 3 CRP is the member of pentraxins family, in which two faces of pentamer form a special bi-phase structure: one face is ligand recognition phase; the other face is effector phase.

总结： 1CRP是一种保守蛋白，在正常生理水平下对内皮细胞没有明显的诱导炎症发生的作用，仅在高浓度条件下有可能诱导细胞炎症相关蛋白及mRNA的表达； 2高于生理水平的CRP对内皮细胞的致炎作用主要通过诱导细胞凋亡及激活细胞增殖相关蛋白信号通路的表达； 3CRP是一种双面五聚体蛋白，结构具有特殊的二相性，能够分别结合内皮细胞和E-LDL。

CRP is the member of pentraxins family which two faces of pentamer form a special bi-phase structure: one face is ligand recognition phase; the other face is effector phase. CRP can connect E-LDL with endothelial cells, thus can induce deposition of lipid in intima and activate complement.

CRP是一种双面五聚体结构，每个单体的配体识别位点或受体结合位点分别位于五聚体两个平面上，分别组成配体识别相和效应器相，从而构成特殊的二相性结构。

You have to walk your own alk in this life.

次生中你必须走自己的路。

To start with, the thesis analyses ***ism in terms of the generic masculine words, word order and semantic derogation of women in greater detail.

论文首先从阳性词泛指，词序，词义的贬降等方面对英语中的性别歧视现象进行了详细的分析。