配基

Structural analysis reveals that the assemblies of these complexes are mainly directed by counter anions, followed with the change of anions from simple inorganic species (SCN~-/dca/Cl~-) to organic ones (ip/nip/tp/chdc), diversiform structures are formed varying from mononuclear, tetranuclear molecules to infinite 1-D and 2-D frameworks.

第三章利用4-bpt的同分异构体4-氨基-3，5-双(2-吡啶基)-1，2，4-三唑(2-bpt)作为螯合试剂，与多种无机/有机阴离子以及金属Cd~盐反应，得到了一系列Cd~配位化合物(7-15)。

Diethylene triamine had good control of the synthesizing of ZnSe nanocrystal, but the condition of high temperature and strong alkalescence had negative influence on the morphology of nanofibers. PAN and MMA-BMA-AA nanofibers whose diameter were about 200nm could be electrospun by optimize technics summed by experiment.

通过实验总结出制备PAN与MMA-BMA-AA静电纺纳米纤维优化纺丝工艺，可纺出直径在200nm左右的PAN／MMA-BMA-AA纳米纤维毡，所得聚合物纤维包含一定数量的羧基，Zn~(2+)在溶液条件下可与之配位。

It is considered that the carboxylic groups coordinate to the metal ions in four modes: monodentate, the chelating bidentate, the bridging bidentate, and thebridging-chelating tridentate.

一般认为羧酸基有四种配位方式：单齿、螯合双齿、桥联双齿和螯合桥联三齿。

Based on literature procedures, a dithiol tridentate ligand containing amino groupand its iron carbonyl complex (4) are synthesised and characterised. An attempt isalso made to protonate this complex.

在文献方法的基础上也合成了含有氨基的二硫醇三齿配体及其铁羰基化合物[Fe_2(SCH_2)_2C(CH_2NH_2)_5](4)的合成与表征，尝试了合成该化合物的质子化产物。

A new unsymmetrical ONO tridentate chain ligand N-(2′-hydroxyl) benzyl-ethanolamine has been synthesized and characterized by elemental analysis, IR and 1NMR.

宗汉兴 ，林瑞森，寇福平，解永树合成了不对称氮氧杂链型配体N-（2′-羟基苄基乙醇胺，通过元素分析、IR和1H NMR等手段进行了表征。

Mixture of BMIPF6 ionic liquid and acdic ionic liquid triethyl(propyl-3-sulfonyl ammonium methanesulfonate was prepared.

在BMIPF6离子液体中加入酸性离子液体磺酸丙基三乙基铵甲基磺酸盐，配成酸性的离子液体溶液。

A new heat storage material (CH3COONa·3H2O) with a phase change temperature of 55℃ and a sub-cooling temperature of less than 2℃ was developed. This sodium acetate trihydrate based material was obtained by a number of experiments for selecting proper nucleation catalysts and suspension mediums.

以三水醋酸钠(CH3COONa·3H2O)为蓄热基质，通过大量实验，遴选合适的抗沉淀剂和成核剂，配成相变温度约55℃、过冷度小于2℃的蓄热材料。

The different effect of support on trimerization catalyst activity was due to the hindrance of the ligand imposed to the active site, which might block off ethylene coupling, coordination, and insertion.

负载化对两种催化剂活性的影响程度不同，是由于R基为-C_(12)H_(25)时催化剂本身的位阻基团比较大，催化剂负载化加剧了位阻对乙烯配位、络合及插入的影响。

First, the geometry optimization for 1-phenyldibenzophosphole and triphenylphosphine were carried out using quantum chemical AM1 method.

用量子化学AM1方法优化了1-苯基二苯并膦和三苯基膦的几何构型，比较了两种化合物的电子结构和空间结构，发现PDBP作为羰基合成铑膦催化剂的配体要优于三苯基膦；系统研究了PDBP的合成方法，其最佳合成条件为：在无水无氧的条件下，采用二乙胺锂与溴化四苯基膦摩尔比为3，反应温度为22 ℃，反应5 h，反应后酸化， pH值为1～2，产物收率可达到85％～88％。

SAA ligand Lg could catalyze asymmetric addition of phenylacetylene to unactivated aromatic ketones in high yields (up to 83%) and high enantioslectivities (up to 83%ee).

SAA配体Lg用于催化炔基锌对未活化酮的不对称加成反应，对于芳香酮的催化反应，收率可达83%，对映体选择性可达83%ee。

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