查询词典 bidentate

A series of tri- and tetrasubstituted benzene derivatives 1-8 with extended rigid arms carrying mono- or bidentate binding sites at the termini were synthesized as connectors for a molecular construction kit.

一系列的三和四取代苯衍生物 1月8日延长刚性武器进行单或双齿结合位点在总站合成作为连接器的分子构建模块。

The capacity of combination between monomer silicic acid and monomer aluminum was weak, while it was stronger between the polymer silicic acid and monomer aluminum and the products were mainly bidentate or tridentate coordination compounds.

单体硅酸与单核铝的结合能力较弱；聚硅酸与单核铝的结合能力则较强，反应产物主要为二啮或三啮配合物。

The crystal consists of two similar but independent molecules in the asymmetric unit and the Ce ion coordinated toward ten donor atoms, six of which belong to the nitrogen atoms of two tridentate ligands and four oxygen atoms from two bidentate picrates.

晶体中一个不对称单元内有两个结晶学上独立的分子，这两个分子的构型基本相同，中心Ce3＋均与两个三齿配位的配体及两个双齿配位的苦味酸根配位，配位数为10。

It was very interesting to find that the carbonate species on the O2/Ov/CeO2(110) surface desorbs to CO2 through the bidentate and monodentate intermediates.

过渡态计算发现，O2/Ov/CeO2(110)表面的三齿碳酸盐物种经两齿、单齿过渡态脱附生成CO2。

The present invention prepares aldehyde or ketone by catalytic oxidation of alcohol under microwave irradiation, which takes sodium tungstate and tungstic heteropolyacid salts as catalyst, takes bidentate ligand containing nitrogen and oxygen as additive and takes hydrogen peroxide as preparing oxidant.

本发明以钨酸钠和钨的杂多酸盐为催化剂，以含氧氮的双齿配体作为助剂，以双氧水为氧化剂，在微波辐照下催化氧化醇制备得醛或酮。

The complexes 7 and 8 with mixed ligands 1, 2-bidentate thiolate and monodentateP〓 or PBu〓 ligands were synthesized from "building block"〓 L = P〓 or〓 through "trans-substitution" reaction of S and N atoms from mpt〓.

在14中，Zn为〓四配位的四面体构型，并通过分子内和分子间氢键形成〓维链。15中，Zn为〓五配位的四方锥构型，配位的〓来自2，2'-二硫水杨酸发生的脱硫反应。

In the third chapter, eight new complexes of 4, 6-dimethylpyrimidine 2-thioacetic acid with rare earth metals has been synthesized and characterized by means of elemental analysis, molar conductivity, IR,〓 NMR and TG-DTA. The general formula of the complexes is Ln〓(n=4 or 5). In the complexes, the deprotonated ligand coordinated to the rare earth metal ions in chelate bidentate mode. 4 or 5 molecular of crystal water existed in the complexes.

第三章合成了八种4，6-二甲基嘧啶-2-硫代乙酸的稀土配合物，通过元素分析、摩尔电导、红外光谱、核磁共振氢谱和热重-差热对配合物进行了表征，研究结果表明，配合物的组成为Ln〓n=4或5），在配合物中配体羧基脱去质子后采用螯合双齿的方式与稀土离子形成配位键，同时，配合物中含有4或5个结晶水。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。