• 蕾蕾

    Heavy snow, cold frost; Winter buds, perseverant.

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  • 马哈德的弟弟声称马哈是被头上的电器电击致死当地警方认为死者是窒息而死

    Mr Mabhouh's brother claimed that he had been killed by an electrical appliance that was held to his head. The local police said he had been suffocated.

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  • 第二是张茵及其家族拥有龙纸业第三是许荣及其家族,拥有房产集团

    Second place went to Zhang Yin and family, owners of the paper recycler Nine Dragons paper, while in third place was Xu Rongmao and family, the owners of the Shimao property group.

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  • 麻生先生是一名天主教徒,他首相吉田外孙上图照片中端坐者为吉田中间的孩子就是幼时麻生),他的爷爷一样都是含着银勺子出生的贵胄子弟。

    Mr Aso, a Catholic, is the grandson of Shigeru Yoshida, a former prime minister (seated above; the young Mr Aso is standing in the centre) and as blue-blooded as they come.

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  • 金属配体,金属化合物金属催化剂它们合成以及它们用于聚合烯烃的用途。

    Metallocene ligands, metallocene compounds and metallocene catalysts, their synthesis and their use for the polymerization of olefins.

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  • 关于钛族络合物、非钛族络合物近年已经许多综述关于、非混合配体钛族络合物的综述很少。

    In recent years, there are many reviews about Cp complex or non-Cp complex, but there is few review regarding the complex with Cp and non-Cp mixed ligands.

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  • 重点介绍了金属合成方法及二烯环取代基溶剂合成分离旋金属影响

    The synthesis of metallocene, the effects of substitution in cyclopentadiene ring, reaction medium for synthesis and separation of chiral metallocene have been highlighted.

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  • 室温下,二铁甲酰基异硫氰酸酯芳香胺反应生成新颖取代对称

    At room temperature, several novel unsymmetric ferrocenyl thiourea compounds were synthesized by reaction of substituted aniline with ferrocenyl formyl isothiocyanate.

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  • 本文综合讨论了二各种功能用途介绍了应用发展趋势

    All sorts of functions and utilities are reviewed in this article, and then both the applications and the developing trend of ferrocene are introduced.

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  • 综述了二及其衍生物燃料添加剂、催化剂医学电化学液晶材料感光材料、以及二铁磁体等方面的应用最新研究进展

    The applications in the additive, catalysis, medicine, electrochemistry, LCD materials, photosensitive materials, magnets and the latest progress on ferrocene and its derivatives were introduced.

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  • 课题原料,邻甲氧基苯甲酰反应生成邻甲氧基苯甲酰基二铁,再与一系列反应合成亚,最终还原为二铁氨基化合物

    The title compounds were obtained by the reduction of the corresponding ferrocenyl imines, which were prepared from ferrocene and o-anisic acid chloride, followed by amination with aromatic amines.

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  • 本文以研究二铁硅烷氢化反应作为重点以期通过硅氢化反应解决衍生物作为催化剂固体推进剂中的迁移问题

    This thesis is focused on the hydrosilylation of ferrocenylsilanes, expecting to solve the problem of migration of ferrocene derivatives as combustion catalyst in solid propellant.

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  • 方法:用硼氢根阴离子交换树脂、硫粉和4-氯丁基二合成二二铁丁基二硫。

    The second method:Diferrocenebutyl disulfide was synthesized from 4-chlorobutylferrocene using sulfurated borohydride exchange resin(SBER).

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  • 因此,双核金属催化剂的研发已经成为一个热点,大量的文献表明双核金属催化剂确实改善聚合物分子量分布,得到性能更为优异的聚烯烃材料。

    The dinuclear metallocene catalysts, which have two diffeent active sites in one molecule, should be able to produce polymer with broader or bimodal molecular weight distribution.

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  • 金属催化剂种具有均匀的活性中心,分子裁剪性结构可控性的新型催化剂,催化制得具有特殊性能金属聚烯烃

    Metallocene catalyst is a new kind of catalyst having homogeneous-site, molecule tailing capability and controlled structure. It can be used to synthesize special function polyolefine.

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  • 1993年,进入中国市场,成立上海气动控制元件有限公司

    Camozzi is successfully established in China since 1993 through the company Shanghai Camozzi Pneumatic Control Components co.

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  • 乙酰基二制备过程乙酰基二相似只是前者的反应温度更高

    The process or way of synthesis of diacetyl ferrocene is very like that of acetyl ferrocene. But to the first compound, the reaction temperature must be higher than that to the second.

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  • 公司享有所有权商品加工进一步处理公司名义进行,久公司无偿拥有产生商品的所有权。

    The further processing of the products owned by JUMO must be undertaken on behalf of JUMO company, and JUMO will possess the new products' ownership free of charges.

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  • 本文一部分绪论一部分研究诸城腔的缘由,诸城腔的研究现状,研究诸城腔的方法以及本文研究主要内容

    The frist part of this papers is Introduction, this part of writing is the reason of studying Maotune, researching Status, researching methods and the main contents of this papers.

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  • 比较发现取代基越大越有利于铁基阳离子多阴离子之的电荷转移盐的形成

    The experiments show that large substituent group on Cp is favorable to the formation of CTSs with low ratio of ferrocenyl:POM.

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  • 论文探索性地研究了催化体系取代重氮芳化,对合成取代二芳基化产物具有一定的指导作用。

    Finally, we also investigated the arylations of substituted ferrocenes under the same conditions and the results may be a useful guidance for the synthesis of these compounds.

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  • 我们铁乙炔、芳香醛尿素三组分一锅煮反应要得到二铁基得4H-1,3-

    We experimented by the one-pot reaction of ethynylferrocene, Arylaldehydes and Urea, wanted to the ferrocene-containing 4H-1,3-Oxazines.

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  • 金属聚合物特性引起人们广泛关注关于金属聚合物的信息报道越来越多。

    The study of processing property and application development is going on rapidly, attracting wide attention of the people.

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  • 金属聚合物特性引起人们广泛关注关于金属聚合物的信息报道越来越多。

    The study of processing property and application development is going on rapidly, attracting wide attention of the people.

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