Methodological Development at Exploratory Research on Mesoscopic Chemistry

介观化学探索性研究方法论的发展

• 批准号: 07309022
• 负责人: MASUHARA Hiroshi
• 金额: $ 3.07万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07309022/
• 关键词: mesoscopic chemistry; mesoscopic reaction; photoinduced change separation; size effect; STM; SNOM; a single microparticle; surface roughness; メゾスコピック領域; 光反応; 分光法; 近視野顕微鏡; 表面反応; 界面相

In the 1st year, we discussed some problems on molecular science and organic material science in terms of mesoscopic chemistry.In the 2nd year, we investigated structures, properties, and functionality in a few tens nm-sub mum dimension of chemical systems. Cluster formation, hydrogen bonding network, mutual interpenetration of polymer chains, molecular diffusion, convection, micropolarity, microviscosity, pH gradient, and so on could be characteristic of small dimension. Time-resolved morphological measurement, time-resolved spectroscopy, and analytical method which can be applicable to small volumes are important and necessary for elucidating the nature of mesoscopic chemistry. Main topics discussed are mesoscopic photochemistry (photoinduced charge separation and recombination dynamics on polymer absorbate, photoisomerization, vibrational relaxation and solvation relaxation), mesoscopic chemical reaction (surface, interface layr, and cluster), mesoscopic functionality (photochromic reaction by scanning near field optical microscopy, roughness control by scanning tunneling microscopy, size-functionality relation of organic microcrystal), and nature of mesoscopic chemistry.For each year, we had very interesting and stimulating seminars, exchanged our opinions, and polished up our perspectives. On the basis of the results we have published a report booklet on our title.

在第一年，我们讨论了分子科学和有机材料科学的介观化学的一些问题。在第二年，我们研究了几十纳米-亚微米尺度的化学体系的结构，性质和功能。簇的形成、氢键网络、聚合物链的相互渗透、分子扩散、对流、微极性、微粘度、pH梯度等都是小尺度的特征。时间分辨形貌测量、时间分辨光谱学和适用于小体积的分析方法对于阐明介观化学的本质是重要和必要的。讨论的主要内容是介观光化学（光致电荷分离和复合动力学对聚合物双酯，光异构化，振动弛豫和溶剂化弛豫），介观化学反应（表面、界面层和簇），介观功能（通过扫描近场光学显微镜的光致变色反应，通过扫描隧道显微镜的粗糙度控制，有机微晶的尺寸-官能度关系），每一年，我们都有非常有趣和刺激的研讨会，交换我们的意见，并擦亮我们的观点。根据结果，我们出版了一本关于我们的标题的报告小册子。

项目成果

K. Watanabe, T. Asdhi, H.Masuhara: "Scavening Dynamics of Photogenerated Holes in Poly (N-vinylcarbazole) Films" J. Phys. Chem.Vol. 100 No. 47. 18436-18444 (1996)

K. Watanabe、T. Asdhi、H.Masuhara：“聚（N-乙烯基咔唑）薄膜中光生空穴的清除动力学”J. Phys。

K.Bessho, T.Uchida, A.Yamauchi, T.Shioya, and N.Teramae: "Microenvironments of 8-Anilino-1-naphthalenesulfonate at Heptane-Water Inteface : Time-Resolved Total Internal Reflection Fruorescence Spectroscopy" Chem.Phys.Lett.(in press).

K.Bessho、T.Uchida、A.Yamauchi、T.Shioya 和 N.Teramae：“庚烷-水界面上 8-苯胺基-1-萘磺酸盐的微环境：时间分辨全内反射荧光光谱” Chem.Phys。

T.Asahi,Y.Matsuo,H.Masuhara: "Localization of a charge transfer excited state in molecular crystals:a direct confirmation by femtosecond diffuse reflectance spectroscopy" Chem.Phys.Lett.Vol.256. 525-530 (1996)

T.Asahi、Y.Matsuo、H.Masuhara：“分子晶体中电荷转移激发态的局域化：飞秒漫反射光谱的直接确认”Chem.Phys.Lett.Vol.256。

増原 宏,福村裕史,笹木敬司,朝日 剛: "新高分子実験学 第7巻" 共立出版(印刷中), (1996)

Hiroshi Masuhara、Hiroshi Fukumura、Keiji Sasaki、Tsuyoshi Asahi：《新高分子实验科学第 7 卷》Kyoritsu Shuppan（印刷中），（1996 年）

T. Asahi, Y. Matsuo, H. Masuhara: "Electronic Structure and Dynamics of the Excited State in CT Microcrystals as Revealed by Femtosecond Diffuse Reflectance Spectroscopy" J. Phys. Chem.(in press). (1997)

T. Asahi、Y. Matsuo、H. Masuhara：“飞秒漫反射光谱揭示 CT 微晶激发态的电子结构和动力学” J. Phys。