硫酮

In the chapter four,the main study was focused on [60,70]fullerene reaction with 4,4,5,5-tetramethylidazoline- 2- thione and DL- valine and other α-aminoacids. The results ofcharacterization showed that it was a carbene reaction. The possible mechanism wasput forward based on the results of characterization.

第四章，主要研究了[60，70]富勒烯，4，4，5，5-四甲基咪唑啉-2-硫酮与DL-缬氨酸和其它氨基酸的反应，通过对反应产物的详细的表征，发现该类反应是一个产生卡宾的新反应。

H2O is indirectly obtained from a precursor ligand, through metal ion Cu induced the hydrolysis of diamide and self-assembled with the hydrolyzate.

Cu离子促进双酰胺配体。N，N'-双异烟酰咪唑啉-2-硫酮的水解，进一步与水解产物异烟酸根自组装形成超分子配合物[Cu(C5H4NCOO)2(H20)2]。H2O，通过X射线衍射对其晶体结构进行了测定。

Six derivatives of 4-phenyl-3-phenoloxymethyl-5-mercapto-1,2,4-triazlyole were synthesized from phenoloxyacetyl hydrazide by two-steps reaction under microwave irradiation, then reacted with 2-chloroacetic acid to give six novel derivatives of 2-(3-phenoxymethyl-4-phenyl-[1,2,4]triazole-5-thio)-acetic acid.

在微波辐射条件下，芳氧乙酰肼经两步反应制得4-苯基－3-芳氧甲基－1，2，4-三唑－5-硫酮衍生物，再与氯乙酸反应得到6种尚未见文献报道的2-（3-芳氧甲基－4-苯基－1，2，4-三唑－5-硫基）乙酸衍生物。

It appeared that, although the physicochemical cultivation conditions permitted the growth and survival of FB, it decreased in abundance in the mixed continuous cultures at a high rate (as judged from the rapid decrease in the parathion-hydrolyzing capacity of the bacterial cells from the mixed cultures) irrespective of the macroelement limiting bacterial growth.

看起来那，虽然物理化学的耕种条件允许了FB 成长和生存，它减少了在丰盈在混杂的连续的文化以一种高速率(依照被判断从在细菌细胞的对硫酮水解的容量的迅速减退从混杂的文化)不问macroelement 限制细菌成长。

The Onsager solvate theory model was employed for aqueous solution calculations.

Onsager反应场溶剂模型用于水相的计算，计算结果表明，2，6-二硫代黄嘌呤在气相和水相中主要以双硫酮形式存在。

The results showed that the dithione R is the most stable tautomer of all the tautomers in the form of isolated or hydrated isomers.

计算结果表明， 2，6-二巯基嘌呤无论是孤立分子还是一水合物，其二硫酮式R是最稳定异构体。

The reaction mechanism of thione-thiol tautomerism for 2,6-dithiopurine obtained from proton transfer has been investigated by DFT B3LYP method with 6-311 ＋G basis set.

采用密度泛函B3LYP方法，在6-311＋G基组水平上对2，6-二巯基嘌呤质子转移引起的硫醇式与硫酮式互变异构反应进行了计算研究。

The reaction mechanism of thione-thiol tautomerism for 2,6-dithiopurine obtained from proton transfer has been investigated by DFT B3LYP method with 6-311＋G basis set. The reaction enthalpies, activation energies, activation free energies and the rate constants of tautomerism were obtained.

采用密度泛函B3LYP方法，在6-311＋G基组水平上对2，6-二巯基嘌呤质子转移引起的硫醇式与硫酮式互变异构反应进行了计算研究，获得了互变异构过程的反应焓、活化能、活化吉布斯自由能和质子转移反应的速率常数等性质。

4 Kinds of methylthiazoline multithioether s were synthesized from the nucleophilic substitution of 5-methyl-thiazolidine-2-thione reacting with bromides,respectively.

通过5-甲基-2-噻唑烷硫酮与溴代物的亲核取代反应合成了四种甲基噻唑啉多头硫醚，利用红外光谱、核磁共振(1H NMR)光谱和元素分析对这四种化合物的结构进行了表征。

Thermal reaction of N-methyl-2-pyrrolidinone and carbon disulfide (CS2) under elevated pressure leads to the formation of N-methylprrolidine-2-thione.

N-甲基吡咯烷酮和二硫化碳(CS2)在加压下发生热反应生成N-甲基吡咯烷-2-硫酮。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。