配基

PBIOM or benzylimidazoleand CoP in chloroform solution were mixed to complex the imidazolyl residue of the ligands with the fifth coordination site of CoP under nitrogen atmosphere to get CoP complexes.

PBIOM或苄基咪唑中的咪唑基与CoP在溶液中配位，得到的CoP-PBIOM或CoP-BIm络合物具有快速、可逆的氧结合特性。

In conclusion, a catechol moiety is presumably to be essential for its activity and substitution of the p-hydroxybenzyl group at C-1 position with correct stereochemistry in the isoquinoline molecule makes a great contribution to the activation of beta adrenergic receptors.

本实验初步结果发现，对於去甲基乌药碱分子之药效，catechol基是必备无疑；而异喹啉环的碳－1位置上取代的p-hydroxybenzyl基对於药效有非常大的影响；至於其立体化学的配位是有立体选择性的。

Basal leaves petiolate, rosulate or not, entire, dentate, or lyrately pinnatifid.

具叶柄的基生叶，与否莲座状，全缘，配位基，或lyrately。

By dehydrochlorination reaction the poly[(2-methoxyl-5-octyloxy)phenylene vinylene] is synthesized and the material"s structure is characterized by nuclear magnetic resonance spectroscopy, infrared absorption spectrum, ultraviolet and visible spectrophotometry. At the meantime, the fluorescence spectrum is measured and the mechanism of fluorescence occurring is analyzed. Thermal Gravimetric Analyzer"s results show that the MO-PPV"s thermal stability is fine. Also the experiment of resolvable property indicates that the MO-PPV can well dissolve in chloroform. Through analyzing the film"s surface by Metaloscope and Atomic Force Microscope, the good filming is found.

通过脱氯缩合法合成了聚(2-甲氧基-5-辛氧基)对苯乙炔，并分别用核磁共振波谱法、红外吸收光谱法、紫外-可见分光光度法等对其进行了结构表征；测量了样品的荧光光谱，分析了荧光产生的机理；热失重仪分析了材料的热稳定性，研究表明MO-PPV材料具有良好的热稳定性；溶解性实验发现材料在氯仿中溶解性较好；金相显微镜和原子力显微镜研究了薄膜的表面形貌，发现该材料的成膜性良好；材料的导电性研究表明，固体材料在掺杂下才可以表现出导电特性，而配成溶液的材料导电性因溶剂的不同而不同，并随溶解时间的长短发生变化。

The results showed that Ni\+\{2+\} bonds with O\+\{2-\} of the SiO\-2 support in bidentate fashion and is terminated with the two methoxyl groups.

结果表明，负载型单核金属甲氧基配合物 Ni(OCH3) 2 / Si O2 中，Ni2 +与载体 Si O2 表面的 O2 -以双齿形式配位；在催化剂表面存在 CO2 的桥式吸附态和甲氧碳酸酯基物种两种吸附态，CH3OH则只有一种分子吸附态。

Was applied to the AD reaction of eight olefins in PEG/NMO system according to the protocol of ligand 8. The yields and ees of the diols were 70～90% and 77～96%(except for trans-5-decene and ally naphthyl ether) respectively.

在与8相同的催化反应条件下，手性配体9催化八种烯烃的AD反应得到的化学产率和ee值分别为70～90％和77-96％（反式-5-癸烯和萘基烯丙基醚除外）。

Several types of ligand reactions observed under hydrothermal condition were summed up:(1) hydrolysis of pyridine nitrile, aldehyde and ester in mixed water and alcohol into pyridine-carboxylate;(2) replacement of carboxylate group with sulfonic group;(3) coupling of phenanthroline by dehydrogen;(4) oxidative coupling of methanol into oxalic acid;(5) hydroxylation of isophthalate.

总结了以往在水热条件下观察到的几类配体反应：（1）吡啶腈、醛和酯在醇和水混合溶液中水解成吡啶羧酸；（2）磺基取代羧基反应；（3）邻菲啰啉的脱氢的聚合：（4）甲醇被氧化偶合生成草酸：（5）间苯二甲酸的羟基化反应。

The family of glycophosphoproteins comprising osteopontin, bone sialoprotein, dentin matrix protein 1, dentin sialophosphoprotein and matrix extracellular phosphoglycoprotein — small integrin-binding ligand N-linked glycoproteins — are emerging as important players in many stages of cancer progression.

糖磷酸化蛋白包含骨桥蛋白，骨唾液蛋白，牙质基质蛋白及细胞外基质糖蛋白――小的整联蛋白结合配体 N 联结糖蛋白――作为癌症演进早期的一个重要物质。

The results show thatthe substitutions containing sulfur atom in the pyrazole ring remarkably affectthe steric and electronic properties of the pyrazole ligands.

因此，我们研究了吡唑环上带上S原子取代基对形成双吡唑烷配体及其与VIB金属羰基配合物的光化学反应的影响。

Basal leaves petiolate, usually rosulate, entire, dentate, or pinnately divided.

通常，具叶柄的基生叶，全缘，配位基，或成羽状裂。

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。