查询词典 ligand

The presence of a gem-diphenylmethylene moiety at the vinylidene ligand with the appropriate terminal vinyl or alkynyl group along with the proper steric environment implements such a novel reactivity in the ruthenium vinylidene complexes.

因此推测丙二烯基与末端的不饱和键确实可以进行一些分子内的反应，但是gem-diphenylmethylene 官能基需位於适当的立体位置方可进行。

The crystal structure of ligand are stabilized by intermolecular H-bond and weak interaction force.

合成了部分稀土配合物，对它们的结构和一些性质进行了表征。

The role of the solvents played in the reaction process was explored, which showed that acetylacetone was the reductant while ethylene glycol was performed as a ligand of Cu〓 as well as a"soft template" for the anisotropic growth of CuCl.

对溶剂在反应过程中所起的作用进行了深入研究，发现乙酰丙酮为还原剂，乙二醇即作配体又是CuCl晶体各向异性生长的&软模板&。

Objective To study the expressions of Fas and Fas-Ligand genes in rats with acute pancreatitis and their relation to apoptosis of pancreatic acinar cells.

目的 探讨凋亡调控基因Fas、FasL在大鼠急性胰腺炎中的表达及其与腺泡细胞凋亡的关系。

In most cases, the yield of target product adipic acid is high if the acidity of ligand is strong.

在大多数情况下，配体的酸性越强，目标产物己二酸的产率越高。

Objective: To explore the feasibility of the combination of psuedo-ligand affinitive chromatography and gel chromatography in purifying RIP from bitter gourd and the cytotoxicity of the RIP.

结果： 运用硫酸铵分级沉淀、Blue Sepharose CL-6B假配基亲和层析、Sephadex-G75凝胶层析等方法提取、纯化得到了高纯度的苦瓜RIP，并且能够获得较高的得率；一定作用剂量的苦瓜RIP不仅能够抑制HL-60细胞的增殖活性，还可以诱导其发生凋亡。

Using ammonium sulfate precipitation, Blue Sepharose CL-6B psuedo-ligand affinitive chromatography and Sephadex G-75 gel chromatography, we obtained the typeⅠRIP with high purity, the feasibility of this method has been approved by SDS-PAGE results.

结果显示：1。运用硫酸铵分级沉淀、Blue Sepharose CL-6B假配基亲和层析、Sephadex-G75凝胶层析等方法提取、纯化得到了高纯度的苦瓜RIP，并且本方法提取效率较高，所获得的RIP在SDS-PAGE上呈现为单一条带。

It has been well established that agmatine is an endogenous agonist at imidazoline receptors and noncatecholamine ligand at alpha - 2 adrenergic receptors (α2- AR).

业已证明，胍丁胺是一种内源性的咪唑啉受体激动剂和α2-肾上腺素能受体（α2-AR）的非儿茶酚胺配基。

Both T mand T i of all the ligands change regulary with the increase of the end alkoxy group length and when the flexible spacer unit in the ligand gets longer.

它们的熔点和液晶态的清亮点随分子中末端烷氧基增大和柔性间隔段长度增加呈规律性变化。

E. value of productions were detected by high performance liquid chromatography. Results The chiral aminoalcohol ligand compound Ⅰ can promote the asymmetric allylation of acylhydrazones and the yield was 57%; The highest values of e. e. obtained for this reaction was 22%.

结果 手性氨基醇配体化合物Ⅰ能够促进烯丙基三氯硅烷和酰腙的烯丙基化加成反应，在它的辅助作用下，烯丙基化加成产物的产率可达到57%，对映体过量值最高达到22%。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。