Ultimate vibrational spectroscopy in the time and space domains: Toward the elucidation of the mechanism of material organization, from molecules to living cells

新型时间和空间分辨振动光谱仪的开发东京大学化学系构建了以下五个新的光谱系统。1）飞秒时间分辨紫外/可见/近红外吸收和荧光光谱仪2）皮秒时间分辨拉曼光谱仪3）纳秒时间分辨红外/近红外光谱仪4）多重CARS（相干反斯托克斯）拉曼散射）显微光谱仪5）超拉曼显微光谱仪关于复杂分子系统（从分子到活细胞）的新发现开发的新装置已应用于许多复杂分子系统，获得了以下结果。1）咪唑基离子液体中局部结构的形成（东京大学）2）红外电吸收光谱法对硝基苯胺的溶剂化结构（东京大学）3）共振超拉曼中“分子近场效应”的发现β-胡萝卜素的散射（东京大学）4）通过飞秒荧光成像研究混合分子晶体中的超快分子动力学（RIKEN）5）TiO_2 中电子的超快光发生和复合动力学（东京大学）6）三线态芳香羰基夺氢反应的新机制（东京大学）7）具有发色团触发结构变化的树枝状聚合物的结构和动力学（筑波大学）8）光诱导电子转移磷脂膜（东京大学）9）活酵母细胞中生命拉曼光谱特征的发现（东京大学）10）细胞生长过程中结构形成的非线性理论（东京大学）

Development of new time-and space-resolved vibrational spectroscopiesThe following five new spectroscopic systems were constructed at the Department of Chemistry, the University of Tokyo.1) Femtosecond time-resolved ultraviolet/visible/near-infrared absorption and fluorescence spectrometer2) Picosecond time-resolved Raman spectrometer3) Nanosecond time-resolved infrared/near-infrared spectrometer4) Multiplex CARS (Coherent Anti-Stokes Raman Scattering) microspectrometer5) Hyper-Raman microspectrometerNew findings concerning complex molecular systems, from a molecule to a living cellThe new apparatus developed have been applied to many complex molecular systems to obtain the following results.1) Local structure formation in imidazolium based ionic liquids (The University of Tokyo)2) Solvation structures of p-nitroaniline by infrared electroabsorption spectroscopy (The University of Tokyo)3) Discovery of "molecular near-field effect" in resonance hyper-Raman scattering of β-carotene (The University of Tokyo)4) Ultrafast molecular dynamics in mixed molecular crystals by femtosecond fluorescence imaging (RIKEN)5) Ultrafast photogeneration and recombination dynamics of electrons in TiO_2 (The University of Tokyo)6) New mechanism of the hydrogen abstraction reaction by triplet aromatic carbonyls (The University of Tokyo)7) Structure and dynamics of dendrimers having chromophores to trigger structural changes (University of Tsukuba)8) Photoinduced electron transfer across a phospholipid membrane (The University of Tokyo)9) Discovery of the Raman spectroscopic signature of life in living yeast cells (The University of Tokyo)10) Non-linear theory of structure formation during the cell growth (The University of Tokyo)