配体

It was found that when the 2,2'-bipyridyl was used as a ligand for metal complex formation,an abnormal new peak was observed obviously whether in fluorescence or absorption spectrum.It indicated that a new species was formed owing to the reaction between them.

发现当以联吡啶为络合物配体时，无论荧光和吸收光谱中均出现反常的新峰，这和 1-溴乙基苯与吡啶间发生了成盐反应有关。

In this paper, two novel Organic- Inorganic Hybrid Compounds Containing POMs were achieved by selecting POMs with unique structure and properties and organic ligands with bipyridyl groups as building blocks and transition mental cation as templating through hydrothermal reaction.

本课题选择结构和性能独特的多金属氧酸根和多齿有机配体作为构件，以金属离子作为模板合成出新型多金属氧酸盐无机－有机杂化化合物。

Chapter 2 presents our studies on aromatic amide-derived phosphine applied to room temperature Suzuki cross-coupling of unactivated aryl chlorides with aryl boronic acids.

第二章主要研究了芳基酰胺衍生的膦配体在不活泼的氯代芳烃同芳基硼酸在室温下的Suzuki偶联反应中的应用。

The key advantages of the Suzuki cross-coupling are the mild reaction conditions and the commercial availability of the diverse boronic acids that are environmentally safer than the other organometallic reagents.

催化剂是suzuki偶联反应当中一个重要的因素，选择合适的催化剂不仅能够使反应条件变得比较温和而且能够提高反应产率，甚至能使原本不能发生的反应变为可能。Suzuki偶联反应的催化剂通常由两部分组成：钯源和配体。

They are derived from the condensation of salicylaldehyde with naphthalidine, 2-cyano-4-chloroaniline, o-Toluidine, N-aminoethylmorpholine, benylamine, butylamine, cyclopentylamine and 3-carboxysalicylidene with N-aminoethylmorpholine, benylamine, 2-hydroxyaminoethylamine, ethylenediamine, respectively.

得到了HL1、HL2和HL3配体的单晶；培养出了HL3～HL6、H2L11的Cu配合物，HL7～H2L11的Co配合物和H2L11的Ni配合物的单晶。此外，以5-溴水杨酸(5-bsa)、2-氨基苯甲酸(2-aba)、六次甲基四胺等为原料，合成了3种过渡金属Ag配合物，并培养出了其单晶。

In this paper, the main work has been focused on the rare reported arsenomolybdates, and nine novel compounds have been synthesized. Sandwich arsenomolybdates:(NH_4)_(12)[Cr_2AsMo_7O_(27_2]·11H_2O (1)(NH_4)_(14)[Cu_2AsMo_7O_(27_2]·13H_2O (2) Double sandwich arsenomolybdates:(NH_4)_(12)Cu(H_2O)_4[As_2Fe_6Mo_(22)O_(85)(H_2O)]·19H_2O (3)(NH_4)_(15)[As_2CoFe_5Mo_(22)O_(85)(H_2O)]·16H_2O(4)(NH_4)_(14)Mn_(0.5)[As_2Fe_5MnMo_(22)O_(85)(H_2O)]·22H_2O(5) Cagelike arsenomolybdate:(NH_4)_(11)[AgAs_2Mo_(16)O_(54)]·9H_2O (6) Organic-inorganic molybdenum arsenate complexes:CuAs_6Mo_6O_(30{[Cu_4]_3[CuAs_6Mo_6O_(30)]}_2·6H_2O (7),[Cu_2]_3[As_3Mo_3O_(15)]_2·2H_2O (8)(NH_4)_(10){Cu(H_2O)_4}[AsMo_6O_(21)(O_2CCH_3)_3]_2·12H_2O (9)All of the above polyoxomolybdates were characterized by IR spectroscopy, TG-DSC, elemental analysis, and single-crystal X-ray analysis to identify their structures and chemical compositions.

本文选择目前报道尚少的砷钼杂多化合物为研究重点，合成了不同结构类型的九个新的杂多化合物：单夹心化合物：(NH_4)_(12)[Cr_2AsMo_7O_(27_2]·11H_2O(1)(NH_4)_(14)[Cu_2AsMo-7O_(27_2]·13H_2O(2)双夹心化合物：(NH_4)_(12)Cu(H_2O)_4[As_2Fe_6Mo_(22)O_(85)(H_2O)]·19H_2O(3)(NH_4)_(15)[As_2CoFe_5Mo_(22)O_(85)(H_2O)]·16H_2O(4)(NH_4)_(14)Mn_(0.5)[As_2Fe_5MnMo_22_O_(85(来源：AbcccBC论文网www.abclunwen.comH_2O]·22H_2O(5)笼状结构化合物：(NH_4)_(11)[AgAs_2Mo_(15)O_(54)]·9H_2O(6)有机配体修饰的化合物：CuAs_6Mo_6O_(30{[Cu_4]_3[CuAs_6Mo_6O_(30)]}_2·6H_2O(7) [Cu_2]_3[As_3Mo_3O_(15)]_2·2H_2O(8)(NH_4)_(10){Cu(H_2O)_4}[AsMo_6O_(21)(O_2CCH_3)_3]_2·12H_2O(9)对上述新化合物进行了瓜光谱分析、元素分析、热分析和X-射线单晶衍射测试，确定了它们的组成和结构，对部分化合物还进行了UV-vis及荧光光谱分析和循环伏安表征。

In addition, nonlinear optical properties calculations reveal that the static first hyperpolarizabilities(β0) are greatly enhanced through the introduction of the carboxy group into the bpy ligand.

同时， 化合物非线性光学性质的计算结果表明，三种化合物均具有较大的一阶超极化率，联吡啶配体中吸电子基团的增加，使得分子内电子转移增强，导致一阶超极化率增大。

In the complex, the centrosymmetric dimeric [V2O2](superscript 4-) unit connected to neighboring Cd(superscript 2+) through the phosphonate group, forming 2D network.

在配合物中，[V2O22](上标 4-)单元利用配体的膦酸氧原子桥联镉离子而形成二维网状结构。

Nanocrystalline CeO 2 were prepared by sol gel method using cerous nitrate and citric acid. The powders were analyzed by XRD. It was showed that the synthesized CeO 2 was cubic in structure and CeO 2 particles were basically spherical in shape.

摘 要：以硝酸铈和柠檬酸为原料，采用溶胶凝胶法制备了纳米CeO2 对反应温度、金属离子与配体的摩尔比、凝胶烘干温度、焙烧温度等制备条件对产物的影响进行了研究。

We also studied the enantioselective conjugate addition of chalcone in the presents of chiral Ni2 aminoalcohol complexes.

我们还研究了手性氨基醇配体/镍盐催化的a，β-不饱和酮的不对称迈克尔加成反应，以及酰腙的不对称烯丙基化反应。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。