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It provides a route tothe compounds which contains three functional groups, two carbon-nitrogentriple bonds and one carbon-carbon double bond. In water, metallic indiumpromotes carbon-sulfur bond coupling reaction of aromatic sulfonyl chloride withsuitable organic halides to afford sulfones. In the last chapter, metallic tin mediated allylation of aldimines with allylbromide was revealed.

第三章,我们研究了在水相介质中金属铟促进的烯丙基溴对1,1-二氰基-2-芳基乙烯的Michael加成反应,生成一个含碳碳双键和二个碳氮叁键的三官能团化合物,另外,金属铟在水介质中还可以促进芳基磺酰氯与卤代烃发生碳硫键的偶联,生成砜。

Cruciferous cancer protection, which may also extend to lung, colon, ovarian, and breast cancer, is attributed to plant chemicals that are metabolized by the body into anticarcinogens called isothiocyanates.

十字花科蔬菜的抗癌作用亦可能对肺癌、肠癌、子宫癌和乳癌等有效,因为这些植物所含的一种植物化合物能经过新陈代谢而产生一种称为异硫氰酸酯的抗癌物质。

In recognition of its important value in ion-selective electrode study, this thesis aims to develop new types of carriers. Metallorganic compounds, Metal-Schiff base complexes, heterocyclic nitrogen compounds, derivatives of calixarene,Sudan Ⅰ and dialkyldithio phosphate have been tested as carriers for all kinds of ions.

鉴于新型载体的开发在离子电极研究中所具有的重要价值,本文主要开展了这方面的一些研究工作,重点考察了金属有机化合物、金属希夫碱配合物、含氮杂环化合物、杯芳烃、苏丹Ⅰ以及双硫代磷酸脂衍生物等各类物质用作离子载体的可能性。

The geometrical structures of thioindigo chromophores were studied at the B3LYP/6-31+G level of density functional theory.

在密度泛函理论的B3LYP/6-31+G*水平上对硫靛染料发色体的几何结构进行优化计算,在获得基态稳定结构的基础上,应用含时密度泛函理论方法在相同水平计算电子吸收光谱。

The geometrical structures of thioindigo chromophores were studied at the B3LYP/6-31+G* level of density functional theory. Subsequently, the electronic absorption spectrum was calculated using the time-dependent density functional theory approach at the same level.

在密度泛函理论的B3LYP/6-31+G*水平上对硫靛染料发色体的几何结构进行优化计算,在获得基态稳定结构的基础上,应用含时密度泛函理论方法在相同水平计算电子吸收光谱。

A four ball tester was used to evaluate the antiwear and extreme pressure properties of antimony dialkyldithiophosphate with friction reducer containing phosphorus, chlorinated paraffin(T301) and sulfurized isobutylene (T321), and their synergistic effects.

利用四球试验机评价了二烷基二硫代磷酸锑与含磷摩擦改进剂、氯化石蜡(T301)、硫化异丁烯(T321)3种添加剂的极压和抗磨性能,以及它们之间的极压和抗磨协同作用;利用市售演示仪评价了SbD-DP、T301和T321之间的协同抗擦伤能力。

The usage of basic solution containing DDS catalyst and hyperthermophilic alkalophilic thiobacillus to remove sulphides from process gases is a new kind of wet bio-desulphurization methods.

用含DDS催化剂和亲硫耗氧性耐热耐碱菌的碱性溶液脱硫的方法是一种全新的湿法生化脱硫技术。

In chapter four, five new monomeric solvated biscyclopentadienyl lanthanide thiolates,〓THF (Ln = Ho, Yb, La, Y, Gd), have isolated by reaction of 〓 with2-mercaptopyrimidine in THF solution, which have been confirmed by elementalanalyses, IR, MS and 〓 NMR spectra.

三、通过1∶1摩尔比的三茂基稀土配合物〓(Ln=Ho,Yb,La,Y,Gd)与2-巯基嘧啶在四氢呋喃中反应,得到了五个新的含茂基和烃硫基的稀土有机配合物。

The traditional techniques of sulphuric acid production operate in steady state. The sulphur dioxide made from the sulphur or sulphur pyrite is converted into sulphur trioxide in one or more catalyst beds in a stationary converter.

传统的硫酸生产工艺是将硫磺或硫铁矿通过焙烧制得含SO〓的烟气,送入一段或多段定态转化器,将SO〓转化成SO〓,用浓硫酸吸收其中的SO〓制成硫酸。

The Orimulsion developed by Venezuela's BITTOR contains 2.8% sulphur,and the SO2 will contami-nate the atmosphere when it is burning and discharging.

奥里乳化油含有约2.85%的硫,燃烧时生成的大量SO_2如果排入大气,将对环境造成严重的污染。

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I didn't watch TV last night, because it .

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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

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