查询词典 bidentate

In this thesis, the three series of P, O and P, N bidentate ligands chelated palladium complexes ￡40-46} were designed and synthesized for Suziki cross-coupling reaction.

研究了它们对Suzuki偶联反应的催化作用，优化了这些催化剂在联苯类化合物合成中的反应条件。

The ground states for three X3Cl species are all the bidentate(C2v-1) isomers.

三者的基态都是双齿型(C2v-1)结构。

The catalyst surface SO_4~(2-) chelated by a bidentate ligand structure together with the carrier.

2采用Hammett指示剂法、IR、TG-DTA、BET分析手段对催化剂物性进行表征。

Structural analyses reveal that all species consist of a pair of hetetrometallic atoms triplybridged by bidentate pivalate ligands.

它们共同的结构特征是异金属离子间均由三个双齿的羧基桥连，在四核的化合物20和21中两个稀土离子通过两个双齿羧基相连。

FT-IR spectra show that a bridged bidentate complex acid site was formed.

FT-IR光谱分析结果表明，ST/Al-PILC中SO〓离子与TiO〓形成了桥式双配位的酸中心结构。

By using different bidentate auxiliary ligands, a number of one- and two-dimensional azido-bridged coordination polymers and molecular magnets were synthesized, including some with novel structures, and the influences of the ligands on the structure and the magneto-structural correlations in some systems were analyzed.

以不同二齿配体为辅助配体合成了多种一维及二维叠氮桥配位聚合物和分子磁体，较系统地分析了辅助配体对结构的影响及部分体系的磁构关系，并获得几种新的叠氮桥联结构类型。

Saccharin,as ligand in crystal,may be existed intypes of monodentate,bidentate,bridge and free anion.

对于糖精作为配体，在晶体中可以以单齿、双齿、桥联、自由阴离子等多种方式存在。

In addition,compared with Eu32,Eu3DPEPO has excellent fluorescent properties and a high thermal stability originating from the rigidity influence of DPEPO as bidentate ligand.

与Eu32 进行比较，证明中性双齿DPEPO 的刚性结构增强了铕配合物的荧光性能和热稳定性，可满足于印刷包装防伪等的需要。

As a kind of potential drug for treating the type Ⅱ diabetes, the inhibitor of protein tyrosine phosphatase 1B (PTP1B) is an important research field, in which a kind of bidentate inhibitors is the research focus.

作为二型糖尿病的潜在治疗药物，蛋白质酪氨酸磷酸酯酶1B(PTP1B)的抑制剂研究一直备受关注。

A new series of Ni complexes [NiBr2] bearing bidentate amino-oxazoline ligands have been synthesized and applied for polymerization of styrene.

系列新的胺基-恶唑啉双牙配位基及其镍金属错合物，[NiBr2] 4，已被成功地合成出来，并且可应用在苯乙烯的聚合反应上。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。