Time-resolved laser spectroscopy of reactive and nonreactive processes in ionic liquids and their mixtures with carbon dioxide

离子液体及其与二氧化碳的混合物中反应性和非反应性过程的时间分辨激光光谱

• 批准号: 90765182
• 负责人: Professor Dr. Nikolaus P. Ernsting
• 金额: --
• 依托单位: Arbeitsgruppe Ultrakurzzeitspektroskopie
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/90765182?language=en
• 关键词: Time; resolved; laser; spectroscopy; reactive

Nonreactive and reactive dynamics of molecules in ionic liquids, ionic liquid mixtures and at the semiconductor - ionic liquid interface will be investigated by femtosecond to millisecond transient broadband absorption and fluorescence spectroscopy to elucidate the importance of the different types of solute-solvent interactions in these media. Carotenoids, a quinolone, phthalimide, and indolines will be used as reporter molecules for ionic liquid solvation dynamics, micropolarity and hydrogen-bonding. The influence of neat ionic liquids and their mixtures will be studied for model reactions, such as the photoisomerization of indoline and thiazoline derivatives, electron transfer processes involving indoline dyes attached to ZnO surfaces used in dye-sensitized solar cells, and selected radical combination reactions.

分子在离子液体、离子液体混合物和半导体-离子液体界面上的非反应和反应动力学将通过飞秒到毫秒的瞬时宽带吸收和荧光光谱来研究，以阐明不同类型的溶质-溶剂相互作用在这些介质中的重要性。类胡萝卜素、喹诺酮、邻苯二甲酰亚胺和吲哚类化合物将被用作离子液体溶剂化动力学、微极性和氢键的报告分子。我们将研究整齐的离子液体及其混合物对模型反应的影响，例如吲哚和噻唑啉衍生物的光异构化，用于染料敏化太阳能电池的吲哚染料附着在氧化锌表面的电子转移过程，以及选择性的自由基组合反应。

项目成果

Dielectric relaxation and ultrafast transient absorption spectroscopy of [C6mim]+[Tf2N]−/acetonitrile mixtures.

• DOI: 10.1039/c2cp23704k
• 发表时间: 2012-02
• 期刊: Physical chemistry chemical physics : PCCP
• 作者: P. W. Lohse;N. Bartels;A. Stoppa;R. Buchner;T. Lenzer;K. Oum

Complete solvation response of coumarin 153 in ionic liquids.

• DOI: 10.1021/jp305430a
• 发表时间: 2013-04
• 期刊: The journal of physical chemistry. B
• 作者: Xin-Xing Zhang;Min Liang;N. Ernsting;M. Maroncelli

Measurements of the complete solvation response of coumarin 153 in ionic liquids and the accuracy of simple dielectric continuum predictions.

• DOI: 10.1039/c1fd00058f
• 发表时间: 2012
• 期刊: Faraday discussions
• 影响因子: 3.4
• 作者: M. Maroncelli;Xin-Xing Zhang;Min Liang;Durba Roy;N. Ernsting

Conductivity and Solvation Dynamics in Ionic Liquids.

离子液体中的电导率和溶剂化动力学

• DOI: 10.1021/jz400359r
• 期刊: The journal of physical chemistry letters
• 作者: Ernsting;Maroncelli
• 通讯作者: Maroncelli