查询词典 thiocarbonyl

Thiocarbonyl compounds have similar chemical properties to those of carbonyl compounds because of their similar valence electron structures.

硫代羰基化合物与羰基化合物具有相似的价电子结构，因而具有类似的化学性质。

The energy gaps among the S1, T1 and T2 states are very small, but the S2 state is much higher than the T2 state in energy. Similar results were found for other thiocarbonyl compounds.

计算结果表明： S1， T1和T2态的能量非常接近，而S2的能量远远高于T2态，这与之前对几种小的硫代羰基化合物的研究结论一致。

Calculated results show that S〓, T〓, and T〓 electronic states are very close in energy for simple thiocarbonyl compounds such as CH〓CHS and 〓CS, and the excitation energies are relatively lower.

计算表明，对于简单的硫代羰基化合物CH〓CHS和〓CS，其S〓、T〓和T〓电子态的能量非常接近，并且激发能比较低，我们推测硫代羰基化合物的光化学反应很有可能是从能量较高的S〓态开始的。

The mechanism of thiocarbonyl compounds with thiourea function group has been proposed according to the photoreaction products.5. Total of one heterocyclothione intermidate and four heterocyclothione compounds have been synthesized and structurally characterized.

根据所得到的产物对具有硫脲基团的硫羰基化合物的光反应机理进行合理的推测。5、合成与表征了1个环硫酮中间体和4个杂环硫酮类化合物，摸索出合成杂环硫酮中间体较佳反应条件。

Since the element sulfur has lower electro-negativity than oxygen and the C=S double bond is easier to be polarized than C=O double bond, thiocarbonyl compounds and carbonyl compounds have different reaction properties, and their photochemical reaction mechanisms often possess dramatic difference.

但是，由于硫元素较低的电负性和C=S双键较高的可极化性，硫代羰基化合物和羰基化合物有着本质不同的反应特性，光化学反应机理常常存在着戏剧性的差别。

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。