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.

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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.

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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.

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

在密度泛函理論的B3LYP/6-31+G*水平上對(duì)硫靛染料發(fā)色體的幾何結(jié)構(gòu)進(jìn)行優(yōu)化計(jì)算，在獲得基態(tài)穩(wěn)定結(jié)構(gòu)的基礎(chǔ)上91视频精品网，應(yīng)用含時(shí)密度泛函理論方法在相同水平計(jì)算電子吸收光譜免费女厕偷拍一级A片。

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.

在密度泛函理論的B3LYP/6-31+G*水平上對(duì)硫靛染料發(fā)色體的幾何結(jié)構(gòu)進(jìn)行優(yōu)化計(jì)算，在獲得基態(tài)穩(wěn)定結(jié)構(gòu)的基礎(chǔ)上78摸免费人成视频在线观看免费看，應(yīng)用含時(shí)密度泛函理論方法在相同水平計(jì)算電子吸收光譜性感粉嫩裸体美女自慰。

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.

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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催化劑和親硫耗氧性耐熱耐堿菌的堿性溶液脫硫的方法是一種全新的濕法生化脫硫技術(shù)。

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.

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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.

傳統(tǒng)的硫酸生產(chǎn)工藝是將硫磺或硫鐵礦通過(guò)焙燒制得含SO〓的煙氣国产在线观看精品入口，送入一段或多段定態(tài)轉(zhuǎn)化器，將SO〓轉(zhuǎn)化成SO〓AV超碰A∨超碰AV超碰，用濃硫酸吸收其中的SO〓制成硫酸a毛片在线观看。

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.

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