Study on the mechanism of reaction rate enhancement by microwave irradiation using nano- and pico-second time resolved spectroscopy.

利用纳秒和皮秒时间分辨光谱研究微波辐射提高反应速率的机制。

• 批准号: 20560712
• 负责人: TAKAHASHI Kenji
• 金额: $ 3万
• 依托单位: Kanazawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20560712/
• 关键词: マイクロ波; 時間分解蛍光; 蛍光異方性; 分子配向; 偏光; 非熱的効果; 分子回転; 新規反応場; 活性化エネルギー; 時間分解分光; 非熱的作用; 蛍光

An experimental apparatus that can measure fluorescence lifetime with picoseond time-resolution under microwave irradiation conditions was build up. Using the apparatus the effect of microwave irradiation on the rotational motion of a probe molecule C153 was investigated. The activation energy for the rotational motion was determined by measuring the temperature dependence of the rotational rate constants. It is found that the activation energy was reduced under the microwave irradiation conditions by comparing with that measured under conventional heating conditions. Therefore it may be concluded that, under the microwave irradiation conditions, the dipole molecule can rotate easily.

搭建了微波辐射条件下皮秒时间分辨率荧光寿命测量实验装置。使用该装置研究了微波辐射对探针分子C153的旋转运动的影响。通过测量旋转速率常数的温度依赖性来确定旋转运动的活化能。与传统加热条件下测量的结果相比，发现微波辐射条件下的活化能有所降低。因此可以得出结论，在微波照射条件下，偶极子分子很容易旋转。

项目成果

担当:Chapter 12. Formation of Anhydrosugars from Polysaccharides in Ionic Liquid(Ionic Liquid Applications : Pharmaceuticals, Therapeutics, and Biotechnology)(ACS Symposium Series, Vol.1038)

负责：第 12 章。在离子液体中从多糖形成脱水糖（离子液体应用：制药、治疗和生物技术）（ACS 研讨会系列，第 1038 卷）

• 发表时间: 2010
• 作者: Hiroe Satoh;Momoko Hayashi;Toshifumi Satoh;Toyoji Kakuchi;Harumi Kaga;Kenji Takahashi
• 通讯作者: Kenji Takahashi

Formation of Anhydroglucose in Ionic Liquids by Microwave Heating-Temperature and Chloride Ion Effects-

微波加热在离子液体中形成脱水葡萄糖-温度和氯离子效应-

• 发表时间: 2009
• 期刊: Chemistry Letter 38
• 作者: Hirore Sato;Harumi Kaga;Tcyoji Kakuchi;Toshifumi Satoh;Kenji Takahashi
• 通讯作者: Kenji Takahashi

Plasma chemistry on water surface. Part 1.-Microwave-induced CO_2 plasma jet-

水面等离子体化学。

• 发表时间: 2011
• 作者: H.Sato;H.Kaga;T.Kakuchi;T.Satoh;K.Takahashi;鈴木玲人;高橋憲司
• 通讯作者: 高橋憲司

Microwave-Assisted Heating of Glucose in High-Boiling Solvent

微波辅助加热高沸点溶剂中的葡萄糖

• 发表时间: 2008
• 作者: Akiyoshi Sasaki;Masahide Sasaki;Kenji Takahashi;Atsushi Narumi;Toshifumi Satoh;Toyoji Kakuchi;Harumi Kaga
• 通讯作者: Harumi Kaga

Electrochemical carboxylation of a-chloroethylbenzene in ionic liquids compressed with carbon dioxide

二氧化碳压缩离子液体中α-氯乙苯的电化学羧化

• 发表时间: 2010
• 期刊: Physical Chemistry Chemical Physics
• 影响因子: 3.3
• 作者: Y.Hiejima;M.Hayashi;A.UdaS.Oya;H.kondoh;H.Senboku;K.Takahashi
• 通讯作者: K.Takahashi