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An attempt to analyze the orientation behavior of ionic liquids through observation of electron transfer reactions

尝试通过观察电子转移反应来分析离子液体的取向行为

基本信息

批准号：
19550062
负责人：
TAKAGI Hideo D.
金额：
$ 2.91万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2007
资助国家：
日本
起止时间：
2007 至 2009
项目状态：
已结题

项目摘要

Rotational re-orientations of solvent molecules take place during the activation processes of most chemical reactions, since the dipole moments of a molecule in the ground state and in the transition state are usually different. On the other hand, electronic relaxation that forms the transition state from the grounds state should be very rapid. However, such an electronic relaxation cannot be achieved unless much slower solvent rotational relaxation is achieved. Therefore, activation energy is strongly related to the easiness of the re-orientation (rotational relaxation) of solvent molecules. However, such a rotational relaxation is rapid (10^<-12> s) for ordinary molecular liquids with small viscosity. On the other hand, ionic liquid, that has relatively large viscosity and the movement of the component ions of which are largely restricted because of the electrostatic interactions, is expected to be an excellent candidate for the observation of slow rotational relaxation during the chemical activation process. We attempted to observe changes of the activation energy of a reaction that corresponds to the slow orientation relaxation of the component ions of ionic liquids.

在大多数化学反应的活化过程中，溶剂分子的旋转重新取向发生，因为分子在基态和过渡态的偶极矩通常是不同的。另一方面，从基态形成过渡态的电子弛豫应该非常快。然而，这样的电子弛豫不能实现，除非慢得多的溶剂旋转弛豫实现。因此，活化能与溶剂分子的重新取向（旋转弛豫）的容易程度密切相关。然而，这种旋转弛豫<-12>对于粘度小的普通分子液体是快速的（10 μ s）。另一方面，离子液体，具有相对较大的粘度和运动的组分离子，其中在很大程度上受到限制，因为静电相互作用，预计将是一个很好的候选人的观察缓慢的旋转松弛过程中的化学活化过程。我们试图观察的反应，对应于缓慢的取向弛豫的离子液体的组分离子的活化能的变化。

项目成果

期刊论文数量（0）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Slow Change in the Orientation of the Component Ions of Molecular Liquids as Observed by the Retardation of Simple Isomerization Processes

通过简单异构化过程的延迟观察到分子液体组分离子方向的缓慢变化

DOI：
发表时间：
2007
期刊：
影响因子：
0
作者：
Kyoko Nodaa;b;Hiroshi Yamaguchia;RyoheiYamanea;Yasuhisa Ikeda b;Koji Ishihara c;Masahiko Inamo d;Tsutomu Asanoe;Hideo D. Takagia
通讯作者：
Hideo D. Takagia

Kinetic Evidence for high reactivity of 3-nitrophenylboric acid compare to its conhugateboronateino in reactions with ethylene and propylene glycols

3-硝基苯基硼酸与其共轭硼酸在与乙二醇和丙二醇反应中具有高反应性的动力学证据

DOI：
发表时间：
2008
期刊：
Inorg. Chem. 47
影响因子：
0
作者：
Chiaki Miyamato;Kazunori Suzuki;SatochiIwatsuki;Masahiko Inamo;Hideo D. Takagi;Koji Ishihara
通讯作者：
Koji Ishihara

Preparation, Crystal Structures, and Spectroscopic and Redox Properties of Nickel(II)Complexes Containing Phosphine-(Amine or Quinoline)-Type Hybrid Ligands and a Nickel(I)Complex Bearing8-(Diphenylphosphino)quinoline

含有膦（胺或喹啉）型杂化配体和镍（I）配合物轴承8-（二苯基膦）喹啉的镍（II）配合物的制备、晶体结构以及光谱和氧化还原性质

DOI：
发表时间：
2010
期刊：
European J. Inorg. Chem. (in press)
影响因子：
0
作者：
Akira Hashimoto;Hiroshi Yamaguchi;Takayoshi Suzuki;Kazuo Kashiwabara;MasaakiKojima;Hideo D.Takagi^*
通讯作者：
Hideo D.Takagi^*

Optimization of conditions for the determination of boron by a ruthenium(II) complex having diol moiety : a mechanistic study

具有二醇部分的钌(II)络合物测定硼的条件优化：机理研究