查询词典 ligands

In this synthetic system, the central metal coordinated withSchiff base and chiral diol simultaneously, and a "mix-ligands complex" type chiral synthonformed.

在该合成体系中，四价的中心金属同时与氨基酸酯Schiff碱和手性二醇配位，形成了一个"手性合成子"。

The former is to prepare polymolybdates coordinated' directly by organic ligands using Na2MoO4 and MoO3 precursors; The latter plays emphasis on exploiting a simple and effective routine to synthesize Keggin polytungstates in which the transition metal or Si acts as the heteratom by reaction precursor Na2WO4.We have synthesized a 4,4'-bipyridine bridging dumbbell-like polymolybdates a metatungs...

前者主要是制备有机配体键合的多金属钼酸盐；后者重点是探索出一个简易、有效的合成过渡金属或主族元素硅作杂原子的Keggin多金属钨酸盐的方法，然后通过变换过渡金属或有机配体的种类探讨对产物结构的影响，再对所得化合物的结构和组成通过物理测试手段进行表征，同时研究其在光、电、磁等方面的性质。

The advance of multipodal ligands and their complexes, and the research situations of electroluminescence materials are briefly reviewed.

对多足开链配体及配合物的研究进展和电致发光材料、研究现状作了简要的文献综述。

Rarely, ligands are cations and electron -pair acceptors.

配位体很少有阳离子和电子对的受主。

The results indicate that smaller ligands with lower electronegativity give higher catalytic activity.

这表明当催化剂结构中的配体具有较小的空间结构和较小的推电子北京化匀二大学不页创匕学位论文性时，更有利于提高催化效果。

Chiral ligand-exchange chromatography is one of the basic chromatography method for enantiomer separation, in which chiral ligands and metal ions are two essential elements to determine the chiral selectivity.

手性配体交换色谱法是分离手性化合物的基本方法之一，其中手性配体和金属离子是决定手性化合物分离选择性的根本因素。

The results showed that the ligand DBM was coordinated to the metal ions acting as the enol form isomer, the main absorption peaks of the ligands in IR, UV spectra were bathochromic due to the influence of chelating effect.

研究表明：配体DBM以烯醇式异构体与金属离子螯合，受螯合效应的影响，配体的IR、UV特徵吸收峰均发生红移，染料在540nm~400nm近紫外区有强烈的电子吸收。

It was true that the luminescence properties of europium complexes could be optimized by modifying the structures of ligands.

不过，通过对配体进行结构修饰，可以达到优化铕配合物的发光性能的目的。

A series of new ligands with different conjugation system and different substituents have been synthesized by changing 1,10-phenanthroline and the responding europium complexes were synthesized.

在phen的结构上进行改造，获得一系列大共轭的配体，研究了它们的铕配合物及各自的荧光性质。

The influence of molecular structures of these copolymers used as neutral ligands on the optoelectronic properties of these europium complexes was also investigated.

研究了各共聚物及其铕配合物的紫外吸收、光致发光性能及其铕配合物在聚合物发光器件中的电致发光特性。

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