查询词典 ligands

In order to improve the catalytic activity, A series of bident ligands containing nitrogen atom were prepared by design, such as bipyridine derivatives, phenantroline derivatives, Schiff base of bipyridine etc.

为了提高催化活性，设计合成一系列含氮双齿配体，如联吡啶衍生物、邻菲罗啉衍生物、含吡啶席夫碱等。

In order to develop more novel and effective biphenyl ligands, three different approaches have been developed.

为了开发新颖高效的联苯配体和突破现有设计概念的局限性，本文做了以下几部分工作。

Synthesis of P,N Ligands Based on Biphenyl Backbones and Their Applications in Asymmetric 1, 4-conjugate Additions

论文标题：联苯型P，N配体的合成及其在不对称催化1，4-其轭加成反应中的应用

Binding constants of ligand-receptor with fours ligands adrenaline hydrochloride,noradrenaline bitartrate,propranolol hydrochloridea and salbutamol sulfate were determined by frontal chromatography.

用前沿色谱法测定了硫酸沙丁胺醇、重酒石酸去甲肾上腺素、盐酸肾上腺素和盐酸普萘洛尔与β_2-AR的结合常数。

Secondly, 11 chiral ligands containing BINOL and its derivatives werescreened in the asymmetric HDA reaction between Brassard diene withbenzaldehyde. The results revealed that-BINOL shows higherenantioselectivity and reactivity than the others.

其次将 11 个二齿配体 BINOL 及其衍生物用于 Brassard 二烯与苯甲醛的不对称 Hetero-Diels-Alder 反应，结果表明，-BINOL 表现出相对较好-i-范谦四川大学博士论文的反应活性和对映选择性。

Firstly, 24 chiral Schiff base ligands were prepared and evaluated for theasymmetric HDA reaction between Brassard diene with benzaldehyde. Theresults revealed that the ligand derived from 3,5-di-tert-butylsalicylaldehydewith (1R,2S)-2-amino-1,2-diphenyl-1-ethanol shows an excellent chiralinduction in the reaction.

首先合成了 24 个手性三齿席夫碱配体，并应用于 Brassard 二烯与苯甲醛的不对称 Hetero-Diels-Alder 反应，结果表明，3，5-二叔丁基水杨醛与(1R，2S)-1，2-二苯基-2-氨基-乙醇生成的单席夫碱显示出优秀的手性诱导能力。

In recent years, with the development of various good catalysts especially the ruthenium alkylidenes bearing N-heterocyclic carbene ligands, the RCM reaction has been applied widely in the synthesis of complex organic molecules, biological molecules and natural products etc. The Nobel Prize in Chemistry 2005 goes to Yves Chauvin, Robert H.

近二，三十年来，随着各种性能优良的催化剂的不断发展，尤其是含氮杂环卡宾配体的钌催化剂的出现，关环复分解反应在合成复杂有机分子，生物活性大分子以及天然产物等方面已得到了极为广泛的应用。2005 年的诺贝尔化学奖分别授予了 Yves Chauvin，Robert H。

The property of bipyridyl ligands baring different substitute groups was studied, which indicated that carboxyl group is the best substitute group.

系统研究了联吡啶配体上取代基性质，确认羧基是最优异的吸附基团。

Carboxylate ligands were widely used in this filed because of their strong coordination ability and various coordination modes.

羧酸配体由于其很强的配位能力和丰富的配位模式，在配合物的合成中被广泛地应用。

It can be concluded that zinc is a good candidate for the assembly of coordination polymers with carboxylate ligands.

由此可见，在与羧酸组装配位聚合物时，锌离子可成为很好的金属中心。

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