• 缓冲体系中用有机配位反应对FCC催化剂进行复活。

    The spent FCC catalyst was reactivated via organic complex method in an unbuffered system.

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  • 紫外可见分光光度法确定了轴向反应体系平衡常数

    Coordination Numbers and equilibrium constants of axial coordination reaction were measured by visible spectra techniques.

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  • 此外比较几种不同冠醚高氯酸乙腈反应热力学性质

    Comparisons were also made on the thermodynamic properties for coordination reaction of lanthanum perchlorate with dibenzo-18-crown-6 and with other crowns in anhydrous acetonitrile, respectively.

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  • 结果表明金属离子与其中的葡萄糖基、羟基羧基配位基发生了配位反应

    Results indicate the metal ions have coordinated with thereinto glucose, hydroxy, carboxyl, amidocyanogen etc.

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  • 本文荧光光谱法初步研究了卟啉金属离子配位反应机理部分催化剂催化机理。

    The present paper covers the mechanism of coordination reaction of porphyrins with some metal ions studied by fluorometry and the catalytic mechanism of some catalysts.

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  • 土壤化学中的酸碱反应沉淀溶解反应位反应氧化还原反应都属于广义氧化还原反应

    The generalized oxidation and reduction reaction includes acid-base reaction, precipitation reaction, coordination reaction and ordinarry oxidation reduction reaction.

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  • 动态机械热分析(DMTA表明发生配位反应合物进一步交联,从 而溶于大部分有机溶剂,其玻璃化转变温度耐热性能均得到很大提高。

    The results of DMTA show that the title polymer is insoluble in most of organic solvents and has a high glass transition temperature and high thermal resistance.

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  • 最后研究了CO不稳定的卡拜副产物反应,得到CO配位乙烯基化合物

    The reaction between co and the by-product of hydride osmium carbyne to give the osmium vinyl compound was also studied.

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  • 从理论上配位滴定时解蔽反应酸度问题进行了探讨提出简便计算方法

    The acidity control problem of de-masking reaction in complexometric titration was presented theoretically in the paper, and simple calculation method was also provided.

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  • 催化剂具有扭曲式构型,N原子处配位形成加合物,反应放热的。

    The catalyst is a twisted chair structure and reacts with borane at the N site of the catalyst to form catalyst borane adduct. The formation reaction is exothermic.

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  • 首先简短回顾化学热力学著是讨论酸碱、沉淀—溶解、还原氧化反应

    It includes a brief review of chemical thermodynamics that is followed by discussion of acid-base, precipitation-dissolution, coordination, and reduction-oxidation reactions.

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  • 讨论形状,反应物的构造类型以及反应时间反应速率立体选择性影响

    The effects of the structure of ligands and substrates, the type of alkali, and reaction time on rate of reaction and stereoselectivity were discussed.

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  • 分开卤化物第二分子得到一个质子,同时产生羟基合体乙烯反应留在金属配位区内。

    The departing halide extracts a proton from the second water and the generated hydroxyl ligand reacts with the ethylene, while remaining in the coordination sphere of the metal.

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  • 通过引入反应系数讨论沉淀效应配位平衡影响

    This article discusses the influence of precipitation reaction on coordination equilibrium by introducing side reaction coefficient.

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  • 二氧化硅为起始原料,乙二醇氢氧化钾反应,生成高活性配位化合物。

    High reactive penta-coordinated organic silicon was prepared via the reaction of silica with ethylene glycol and potassium hydroxide.

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  • 近年来,双齿具有半配位效应而引起广泛关注钯催化的多种反应得到应用

    Bidentate ligands with the property of hemilability have attracted chemists' research interests and have been widely applied in many palladium-catalyzed transformations.

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  • 本文综述了模板反应化合物合成中的应用,及含不同配位原子大环化合物的合成方法

    This paper reviewed the application of the template effect in the synthesis of macrocyclic compounds and synthetic methods of macrocyclic compounds with different donors.

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  • 作用下不合理堆积导致体的交换重排反应

    Under weak ligand field interaction, various types of improper packing of ligands will induce lig and exchange and rearrangement.

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  • 原子数目种类进行分类,综述了近年含硫手性有机锌试剂和醛等化合物的不对称加成反应中的最新研究进展

    Recent developments in organozinc reagents on asymmetric addition catalyzed by sulfur-containing chiral ligands are reviewed according to the type and number of the coordinating atoms.

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  • 研究TBP- DTPA萃取体系中铀、、钚的一些氧化还原反应

    Some oxidation reduction reactions in the complex extraction systems of TBP DTPA u, Np, Pu have been investigated.

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  • MNDO方法酰化组氨酸磷上交换反应侧链咪唑基所参与配位磷机理进行研究。

    The ester exchange reaction on phosphorus of N-phosphorylhistidine with primary alcohol has been studied by MNDO method.

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  • 反应机理推测为丝、苏氨酸的侧链基团羟基咪唑存在下亲核进攻原子形成五配位中间体

    Only N-phosphoryl serine and threonine methyl esters were catalyzed by imidazole, A new type of pentacoordinate phosphorus intermediate was proposed.

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  • 通过柠檬酸酸铵配位取代反应合成了双核钨氧柠檬酸合物。

    The binuclear tungsten citrate complex was synthesized by the reaction of (NH4)2WS4 with potassium citrate, and characterized by IR and elemental analysis.

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  • 无定型二氧化硅为起始原料,乙二醇氧化钾反应,生成高反应活性配位化合物;

    A highly reactive penta-coordinate organic silicon complex was prepared by the reaction of natural silica with ethylene glycol in the presence of potassium hydroxide.

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  • 无定型二氧化硅为起始原料,乙二醇氧化钾反应,生成高反应活性配位化合物;

    A highly reactive penta-coordinate organic silicon complex was prepared by the reaction of natural silica with ethylene glycol in the presence of potassium hydroxide.

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