配体

This paper reviews the recent advances in synthesis of chiral allylic amines, mainly discussing the effects of ligands on chemo-and regio-selectivities.

综述了近年来手性烯丙基胺的合成进展，重点介绍了催化剂配体对化学选择性和对映选择性的影响，并阐述了各种类型的反应机理

When ligands with only planar chirality were used in the two model reactions (allylic alkylation and amination), comparatively high enantioselectivities were obtained.

令人鼓舞的是设计合成的只具有平面手性的膦氮配体，也可以取得中等到良好的对映选择性。

Synthesis and application of 1, 1'-ferrocene P, N -ligands in enatio- and regio-selective palladium-catalyzed allylic substitution reactions

1， 1'-二茂铁膦氮配体的合成及其在不对称区域选择性钯催化烯丙基取代反应中的应用

This thesis focused mainly on studying the role of planar chirality in asymmetric catalysis, synthesizing novel ferrocene ligands and applying them to palladium-catalyzed allylic substitution reactions.

本论文主要是研究二茂铁平面手性在不对称催化反应中的作用，设计合成新型二茂铁配体及其在钯催化烯丙基取代反应中的应用。

In their structures, polyanions are bridged by Ln ions via the coordination of the bridging oxygen atoms and terminal oxygen atoms, forming a W–Ot′–Ln–Ob–W linkage; and through the W–Ot′–Ln–Ob–W linkage a one-dimension infinite linear chain with alternating cations and anions is formed.

在相似的合成条件下，我们向原有体系内加入顺丁烯二酸作为有机配体，合成了化合物7，其7的基本结构和化合物1-6很相似，但有一个顺丁烯二酸阴离子取代了一个NO3-离子的位置。

The preparation of MBPA, BMBPA and NS amide compounds have not been reported in literature.

MBPA，BMBPA和两种含有酰胺基的NS二齿配体的合成尚无文献报道。

In the second chapter, a series of 6-aromatic amine carbonyl pyridine-2-carboxylic acid ligands have been designed, synthesized and characterized.

第二章报道了一系列新型6-位取代的吡啶-2-甲酸衍生物有机配体的分子设计、合成，并用元素分析、红外吸收光谱、核磁共振谱、质谱等方法进行了组成和结构分析。

Three methods including the atomic resolved density of state, charge difference density, and the transition density matrix are used to visualize metal to ligand charge transfer in ruthenium ammine complex.

利用三种方法可视化化了Ru ammine的金属到配体的电荷转移。

The atomic resolved density of state shows that there is density of Ru on the HOMOs. All the density is localized on the ammine, which reveals that the excited electrons in the Ru complex are delocalized over the ammine ligand.

首先原子分辨的态密度显示HOMO上的密度主要在Ru上，LUMO 上的态密度在ammine上，这说明Ru上激发的电子会转移到ammine配体上。

This is mainly due to that pyrene ligand has better planar and aromatic character than anthracene.

这主要是由于配体芘比蒽具有更好的芳香性和平面型，可以使探针Ru-2更好的与DNA结合，使荧光增强。

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。