硫代的

Chapter 4 describes the synthesis, structural characterization and properties of anovel organic-inorganic hybrid compound, F〓〓BEDT-TTF =bis(ethylenedithiotetrathiafulvalene, which has been synthesized through thereaction of the pre-intercalate Fe〓PS〓〓(phen = 1.10-phenanthroline) with〓 Compared with the pristine FePS〓, the lattice spacing isexpanded by about 4.0〓, indicating that the molecular ring plane of BEDT-TTF isarranged parallel to the layer of the host.

通过红外光谱推测客体BEDT-TTF在层间以中性状态存在。X-线光电子能谱揭示在夹层化合物Fe〓PS〓〓中磷原子和硫原子在硫代亚磷酸根负离子簇中各存在两种化合价态，其中一种价态与纯主体或预夹层化合物〓〓中的磷原子和硫原子价态一致，而另一种价态却比纯主体FePS〓或预夹层化合物Fe〓中的磷原子和硫原子价态高。

In the seventh chapter, the reaction of sodium hydrogen selenide with thiocarbamates and dithiocarbamates in ethanol as a selenium-containing reagent with good nucleophilic and reductive property were studied.

第七章进行了硒试剂NaHSe与硫代氨基甲酸酯和二硫代氨基甲酸酯的反应研究，并提出了反应的可能机理。

According to the reducibility of sodium thiosulfate ,the interference of sulfite is eliminated by formaldehyde and sodium thiosulfate is determined by indirect iodimetry with addition of excessive iodine.

根据硫代硫酸钠的还原性，以甲醛消除亚硫酸盐的干扰，加过量碘，间接法测定硫代硫酸钠。

The acridone could be quenched by the diphenyl iodium salt and the electron transfer mechanism between them was verified via fluorescence quenched.

实验又证明了由硫代吖啶酮、二苯基碘盐和硫代水杨酸三者组成的光聚合引发体系的引发效果最好。

In this paper, a series of 4,5-dithiacrown ether annulated 1,3-dithiole-2-thiones 8a~8d were prepared via condensing 4,5-bis-1,3-dithiole-2-thione (7) with 1,ω-dimercapto polyglycol derivatives in high dilution. The obvious template effect was found during the synthesis of 8c-8d.

在高度稀释条件下，经4，5-二溴甲基-1，3-二硫杂环戊烯-2-硫酮(7)和多缩乙二醇的1，ω-二巯基衍生物的缩合反应，方便地合成了4，5-位带二硫杂冠醚残基的2-硫代-1，3-二硫杂环戊烯的衍生物8a~8d，中间体硫杂冠醚8c~8d的合成中有明显的&模板效应&。

In this paper, a series of 4,5-dithiacrown ether annulated 1,3-dithiole-2-thiones 8a~8d were prepared via condensing 4,5-bis-1,3-dithiole-2-thione (7) with 1,ω-dimercapto polyglycol derivatives in high dilution. The obvious template effect was found during the synthesis of 8c-8d.

在高度稀释条件下，经4，5-二溴甲基-1，3-二硫杂环戊烯-2-硫酮(7)和多缩乙二醇的1，ω-二巰基衍生物的缩合反应，方便地合成了4，5-位带二硫杂冠醚残基的2-硫代-1，3-二硫杂环戊烯的衍生物8a~8d，中间体硫杂冠醚8c~8d的合成中有明显的&模板效应&。

Aiming at the shortcoming of sodium sulfantimonate preparation process,a new preparation process was designed which adopted sodium sulfide to leach sodium sulfantimonate from sodium antimonate.

针对目前硫代锑酸钠制备工艺的不足，设计出用硫化钠浸出锑酸钠制备硫代锑酸钠的新工艺。

In chapter four, the preperation of ytterbium diiodide was examined. The reductive cleavage of Se-Se bond and S-S bond induced by ytterbium diiodide was investigated. The reaction of diselenides and disulfides with allylic bromide promoted by ytterbium diiodide was also examined. The intermolecular Barbier-type reaction induced by ytterbium diiodide was studied. In the last section of this chapter, the intermolecular reductive coupling of nitriles with azides induced by samarium diiodide was investigated.

第四章，研究了二碘化镱的制备方法，以及二碘化镱作为一种优良的单电子转移试剂在有机合成中的应用：二硒醚的Se--Se键和二硫醚S-S键的还原断裂，及其在合成烯丙基硒醚，硒代酯和烯丙基硫醚，硫代酯中的应用，实验结果表明二碘化镱也能促进分子间的Barbier反应，而文献认为二碘化镱不能促进分子间的Barbier反应；最后研究了二碘化钐促进的叠氮化合物与腈的交叉还原偶联反应，一步高收率地制备脒的方法。

Eight complexes of light rare earths with dioctyldithiocarbamate,〓 xH〓O (RE=La-Tb, except for Pm) and Nine complexes of rare earths with 5-phenyl pyrazoline dithioformate, Na RE〓·xH〓O (RE=La-Dy, Y, except for Ce and Pm) have been synthesized in air and dry N〓atmosphere, respectively.

分别在空气和氮气保护条件下，合成出八种稀土与二正辛基二硫代氨基甲酸形成的配合物〓（RE=La-Tb，除Pm外）和九种稀土与5-苯基吡唑啉二硫代甲酸的固态配合物NaRE〓（La—Dy、Y、除Ce、Pm外）。

The primary factors which influence oxidizing rate of sodium thiosulphate are discussed.

利用固体超强酸SO42-/T iO2及SO42-/W O3对硫代硫酸钠进行了光催化氧化的研究，并讨论了影响硫代硫酸钠氧化率的主要因素。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐