开地

These compounds are of substantial interest both inviewpoints of theory and practical applications, mainlyunder the stimulus to achieve synthetic models either foractive sites of iron-sulfur proteins or for transitionmetal catalysts. This thesis describes the synthesis, structures andconformations of 51 new iron-sulfur cluster complexes,which have been characterized by elemental analysis andstandard spectroscopic methods. In addition, single-crystalX-ray diffraction analyses were performed for 4 representa-tive new compounds. Reactivities of μ-〓 with mono- and di- Grig-nard reagents derived intermediates toward various organicelectrophilic substrates were studied, along with complexa-tion of arynyl-containing iron-sulfur clusters by 〓Thus, several bridged, non-bridged, monomeric, dimeric,homonuclear, heteronuclear iron-sullfur and iron-sulfur co-balt-carbon cluster complexes were synthesized. A novelreaction and convenient route for the synthesis in highyield of tetranuclear iron complexes 〓 containing atetracoordinated sulfur atom was discovered, whereas aplausible mechanism based on experimental results was propo-sed for the formation of the new cluster type.

鉴于有机铁硫原子簇化学在基础理论发展和应用方面的重要意义，因此我们开展了这一课题的研究，并取得以下主要成果： 1、本文共合成了51个新有机铁硫及含钴碳簇基的有机铁硫原子簇配合物，除用元素分析，NMR，IR，MS法表征其结构和构象外，还用X-光衍射技术测得四个代表性配合物的单晶结构和构象； 2、我们业已发现炔基Grignard试剂同〓可形成一种&开环&与&闭环&中间物的平衡混合物，研究该平衡混合物同各种亲电试剂的反应； 3、研究发现了一种可高产率地形成〓含〓四配位硫挛合簇的新化学反应并对此反应提出了—种有趣的反应机理； 4、首次由1，4-二溴丁烷双Grignard试剂与〓制得一种新型铁硫簇双硫阴离子活性中间体，并进而研究了它的亲核反应性能； 5、找到了通过〓的光化学反应来合成簇合物〓-〓的一条有实用价值的新路线。

I can't find its inchoation and ultimate, but the purple[6],deep and light as if they are flowing, laughing happily and are growing continuously up.

从未见过开得这样盛的藤萝，只见一片辉煌的淡紫色，像一条瀑布，从空中垂下，不见其发端，也不见其终极，只是深深浅浅的紫，仿佛在流动，在欢笑，在不停地生长。

I can't find its inchoation and ultimate, but the purple[6],deep and light as if they are flowing, are laughing happily and are growing continuously up.

从未见过开得这样盛的藤萝，只见一片辉煌的淡紫色，像一条瀑布，从空中垂下，不见其发端，也不见其终极，只是深深浅浅的紫，仿佛在流动，在欢笑，在不停地生长。

I can't find its inchoation and ultimate, but the purple[6],deep and light as if theyare flowing,are laughing happily andare growing continuously up.

从未见过开得这样盛的藤萝，只见一片辉煌的淡紫色，像一条瀑布，从空中垂下，不见其发端，也不见其终极，只是深深浅浅的紫，仿佛在流动，在欢笑，在不停地生长。

As for Ebay China, it has brought home the business module overseas intactly, which includes shop fee, shop registration fee, trasaction fee and so on, but success has never bloomed.

就ebay而言，可以说其原封不动地引入了ebay的海外盈利模式（开店费、商店登记费、交易手续费等），但至今未见成功。

An average office clerk may own a second hand 1300cc proton Iswara costing $7,000 (rebate =$625) while the Datuk's childrencan own a fleet of 10 new cars of BMW, Audi and Volvo all less than 2000cc costing $2 millions and get a total rebate of $625 x 10 =$6,250!

一个普通的职员也许开着一台1300cc的二手国产花蝴蝶（价值马币7千；回扣马币625）；而一个拿督的儿子可以拥有10台宝马、奥地和富豪，全都是2000cc以下但价值2百万，可以享有625x10=6250的回扣！！

"What I really want to know," Izumi began, she smoke from her cigarette curling silently up into the air, is what happened to the cats afterwards.

&我真正想知道的，&泉开口说，她吸了一口静静地朝空中卷起的烟，是这件事之后那些猫被怎么样了。

At the moment, our kailyard like a just awake baby opens its bright eyes agreeably and get a load of the spectacle of the garden curiously in the morning.

此时，我们的菜园就像刚刚睡醒的婴儿，欣欣然睁开晶亮的眼睛，好奇地打量着菜园早晨的光景。

And the earth opened its mouth and swallowed them and their families (and all of Korah's men) and all their possessions.

地开了口，将他们和他们的家属，以及凡属科辣黑的人和所有的财物，都吞了下去。

When the flower opens the wind blows, an entire lavandula spica field just like the deep purple wave overlapping ground under is fluctuating, is really beautiful.

每当花开风吹起时，一整片的熏衣草田宛如深紫色的波浪层层叠叠地上下起伏着，甚是美丽。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。