查询词典 zwitterion

At an intermediate pH value, an amino acid acts as a dipolar ion, or zwitterion, which has no net charge.

在pH值适中的时候，氨基酸可作为偶极离子，或两性离子，它不带电。

In the meantime, we proposed a mechanism for this catalytic reaction. According to the possible formation of intermediate B, we designed a disubstituted ketene of more function to re-capture the zwitterion.

在同位素标记基础上，我们推测了这个N-甲基咪唑催化的二组分反应可能的机理，并根据此机理设计用一个二取代的烯酮来捕捉N-甲基咪唑和DMAD形成的两性离子。

The zwitterion derived from the addition of N-methylimidazole to DMAD was investigated and intercepted by a ketene.

我们用烯酮来捕捉N-甲基咪唑与活泼炔DMAD形成的两性离子。

A novel zwitterion derived from the addition of thiazole carbene to ketene was discovered and captured by an activated alkyne. In this process, we developed a facile and efficient three-component tandem reaction involving thiazole or benzothiazole carbene, disubstituted ketene and activated alkyne.

我们发现了一种新的噻唑卡宾和烯酮形成的两性离子的存在，并用活泼炔成功捕捉，从而发展了一个新的噻唑卡宾或苯并噻唑卡宾、二取代烯酮和活泼炔的三组分串联反应。

Co2+,Mn2+ and Pb2+ ions performed headgroup configurational changeof keto→zwitterion→enol form and coordination to Schiff base moiety in LB films ismore difficult and it is more easy that Ni2+ ion coordinate to SBC18 in LB film bypenetrating to LB films.

FTIR透射光谱和UV-vis电子吸收光谱进一步证实了π-A等温线的宏观结果，即两组分间的吸引主要来源于头基间的相互租用，为以后研究混合膜的性质和功能提供了一定的依据。2。

Molecular configurations in LB films undergo change from keto form to zwitterion assurface pressures increase,companied by intermolecular hydrogen bonds decreaseand intramolecular hydrogen bonds increase.

在LB膜中，随表面压增加，分子间氢键减少，分子内氢键增加，SBC18头基构型在转折区发生醌式→双性离子构型转变。

This shows, zwitterion divides powder to have good applied value.

由此可见，两性离子分散剂具有良好的应用价值。

Zwitterion An ion with both a positive and a negative charge.

两性离子：既带有正电荷又带有负电荷的离子。

The resulting polymer electrolyte possesses 1.57×10~(-3) S·cm~(-1) of ionic conductivity at room temperature when it contain 5wt% of LiBF_4 and 1wt% of zwitterion salt.

研究表明Zwitterion型离子液体1-甲基-3-磺酸正丁基咪唑盐，具有较高的熔点和热分解温度，熔点为219℃，分解温度达320℃。

Finally, we primarily applied the ionic liquid-polymer electrolyte [P/EMIBF_4/ LiBF_4/Zwitterion] to the LiCoO_2 /Li[Li_(1/3)Ti_(5/3)]O_4 batteries. These batteries show a discharge specific capacity of 91 mAh·g~(-1) and voltage plateau of 2.2V at a rate of 0.05 C in the first cycle.

最后，初步探讨了离子液体聚合物电解质P/EMIBF_4/ LiBF_4 /Zwitterion在LiCoO_2 /Li[Li_(1/3)Ti_(5/3)]O_4电池中的应用，以此组装的聚合物锂二次电池以0.05C的电流进行充放电，首次放电比容量为91 mAh·g~(-1)，电压平台为2.2V。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。