Structure and reaction dynamics in gas phase solute-solvent heteroclusters

气相溶质-溶剂异质团簇的结构和反应动力学

基本信息

  • 批准号:
    10206209
  • 负责人:
  • 金额:
    $ 13.89万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas (B)
  • 财政年份:
    1998
  • 资助国家:
    日本
  • 起止时间:
    1998 至 2000
  • 项目状态:
    已结题

项目摘要

We have carried out the following two projects and obtained some interesting results.(1)Dynamics of the electronically excited state of 9,9'-bianthryl(BA) was studied in gas-phase clusters with acetonitrile (ACN), BA-(ACN)_n(n=1-5). The mass-selected two-color resonance-enhanced multiphoton ionization (REMPI) spectra were measured to determine the absorption band for the cluster of BA with the specific number of the acetonitrile molecules. The dispersed fluorescence (DF) spectra and lifetimes were measured for these absorption bands to study the dynamics of the excited state of BA in the clusters, BA-(ACN)_n. For all clusters studied, the DF spectra were broad and largely red shifted compared with that of unclustered BA. The fluorescence lifetimes of BA in the clusters were considerably longer than that of unclustered BA. These results suggested that the photoexcited state of BA in the clusters change to the polar excited state which is analogous to the twisted intramolecular charge tr … More ansfer (TICT) state of BA in the acetonitrile solution. Stokes shift and lifetime of the BA-(ACN)_1 suggested that the charge-transfer reaction becomes possible by adding one acetonitrile. However, these two properties of the larger clusters did not show monotonic change toward those of BA in acetonitrile solution. These results implied that the structure and dynamics of the clusters play some important roles in the charge-transfer reaction.(2)The laser-induced fluorescence technique is applied to electrosprayed cytochrome c (cyt-c). While no fluorescence was observed for the electrospray of the solution of neutral pH, the fluorescence ascribed to the tryptophane residue was observed for the spray of the acidified solution by acetic acid. The relative intensity of the fluorescence from the acidified cyt-c is observed to increase with the distance from the end of the spray needle. This result indicates that the tryptophane residue becomes more fluorescent by the loss of solvent molecules in the electrospray. It is suggested that the highly charged cyt-c ions which preserve the nonfluorescent compact forms in solution make a conformational change by the loss of solvent in the electrospray and become fluorescent. Less
(1)研究了9,9‘-联菲(BA)在含乙腈(ACN)、BA-(ACN)_n(n=1-5)的气相簇合物中的电子激发态动力学。测量了质量选择双色共振增强多光子电离(REMPI)光谱,确定了具有特定数目的乙腈分子的BA团簇的吸收带。测量了这些吸收带的色散荧光(DF)光谱和寿命,以研究BA-(ACN)n团簇中BA的激发态动力学.与未簇合的BA相比,所研究的所有团簇的DF光谱都较宽且红移很大.簇内BA的荧光寿命明显长于未簇化的BA。这些结果表明,团簇中BA的光激发态转变为类似于扭曲的分子内电荷tr…的极性激发态更多的转移(TICT)状态的BA在乙腈溶液。BA-(ACN)_1的斯托克斯位移和寿命表明,加入一个乙腈即可发生电荷转移反应。然而,在乙腈溶液中,较大团簇的这两个性质并没有表现出相对于BA的单调变化。这些结果表明团簇的结构和动力学在电荷转移反应中起着重要的作用。(2)将激光诱导荧光技术应用于电喷雾细胞色素c(Cyt-c)。中性pH溶液的电喷雾没有观察到荧光,而醋酸酸化溶液的电喷雾则观察到属于色氨酸残基的荧光。观察到来自酸化的CyT-C的荧光的相对强度随着距离喷雾针末端的距离而增加。这一结果表明,由于溶剂分子在电喷雾中的损失,色氨酸残基变得更具荧光。结果表明,高电荷态的Cyt-c离子在溶液中保留了非荧光的致密结构,在电喷雾中由于失去了溶剂而发生构象变化,变成了荧光。较少

项目成果

期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
K.Honma, Y.Tsutsui: "Reaction dynamics of H+H_2S→H_2(v,J)+SH:Doppler profiles of H_2(B^1Σ^+_u-X^1Σ^+_g)"Chem.Phys.Lett.. 309. 35-42 (1999)
K.Honma,Y.Tsutsui:“H+H_2S→H_2(v,J)+SH 的反应动力学:H_2(B^1Σ^+_u-X^1Σ^+_g) 的多普勒轮廓”Chem.Phys.Lett .. 309. 35-42 (1999)
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    0
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Katsuhiro Tanaka and Kenji Honma: "Microscopic solvation of acetonitrile to 9,9'-bianthryl studied in gas phase clusters : Polar excited state formation."J. Phys. Chem.. 106. 1926-1932 (2002)
Katsuhiro Tanaka 和 Kenji Honma:“在气相簇中研究乙腈到 9,9-联二蒽的微观溶剂化:极性激发态形成。”J.
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    0
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HONMA Kenji其他文献

Electronic Structure of OPV-related acceptor moleules
OPV 相关受体分子的电子结构
  • DOI:
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    0
  • 作者:
    MIZUTANI Shogo;HONMA Kenji;Koichi Iwata;K. Kanai
  • 通讯作者:
    K. Kanai
Excited state reaction dynamics of Ti(a5FJ)+O2->TiO(B,C)+O studied by a crossed-beam velocity mapping imaging technique.
通过交叉光束速度映射成像技术研究 Ti(a5FJ) O2->TiO(B,C) O 的激发态反应动力学。
  • DOI:
  • 发表时间:
    2015
  • 期刊:
  • 影响因子:
    0
  • 作者:
    TANAKA Yuki;HONMA Kenji
  • 通讯作者:
    HONMA Kenji
Spectroscopy of isolated ions in a RF ion-trap
射频离子阱中孤立离子的光谱分析
  • DOI:
  • 发表时间:
    2015
  • 期刊:
  • 影响因子:
    0
  • 作者:
    MIZUTANI Shogo;HONMA Kenji
  • 通讯作者:
    HONMA Kenji

HONMA Kenji的其他文献

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{{ truncateString('HONMA Kenji', 18)}}的其他基金

Reaction dynamics of transition metal atoms
过渡金属原子的反应动力学
  • 批准号:
    18066014
  • 财政年份:
    2006
  • 资助金额:
    $ 13.89万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas
Reaction Dynamics of Excited States of Transition Metal Atoms
过渡金属原子激发态的反应动力学
  • 批准号:
    14340186
  • 财政年份:
    2002
  • 资助金额:
    $ 13.89万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Study of intermediate species in organometallic reactions
有机金属反应中间体物种的研究
  • 批准号:
    10440177
  • 财政年份:
    1998
  • 资助金额:
    $ 13.89万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)

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The study for charge transfer reaction in Li-ion battery using first-principles calculation combined with implicit salvation model
第一性原理计算结合隐式拯救模型研究锂离子电池电荷转移反应
  • 批准号:
    20K15376
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    2020
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Charge Transfer Reaction at the Electrode/Solvate Ionic Liquid Interface
电极/溶剂化离子液体界面的电荷转移反应
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    15H03874
  • 财政年份:
    2015
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    $ 13.89万
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    Grant-in-Aid for Scientific Research (B)
Protonation of oxides using charge transfer reaction
利用电荷转移反应进行氧化物质子化
  • 批准号:
    23655201
  • 财政年份:
    2011
  • 资助金额:
    $ 13.89万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Electrochemical control of the molecular encapsulation behavior and charge transfer reaction of the dendrimer at the liquid/liquid interface
电化学控制树枝状聚合物在液/液界面的分子封装行为和电荷转移反应
  • 批准号:
    21750078
  • 财政年份:
    2009
  • 资助金额:
    $ 13.89万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Direct observation of the structural deformation in the intramolecular charge-transfer reaction by means of transient infrared spectroscopy
利用瞬态红外光谱直接观察分子内电荷转移反应中的结构变形
  • 批准号:
    16550004
  • 财政年份:
    2004
  • 资助金额:
    $ 13.89万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
CAREER: Charge-Transfer-to-Solvent Transitions: Experimentaland Theoretical Studies of the Simplest Charge Transfer Reaction
职业:电荷转移到溶剂的转变:最简单电荷转移反应的实验和理论研究
  • 批准号:
    9733218
  • 财政年份:
    1998
  • 资助金额:
    $ 13.89万
  • 项目类别:
    Continuing Grant
THEORETICAL STUDY ON QUANTUM COUPLINGS BETWEEN CHARGE TRANSFER REACTION AND MEDIUM MODES
电荷转移反应与介质模式量子耦合的理论研究
  • 批准号:
    08640660
  • 财政年份:
    1997
  • 资助金额:
    $ 13.89万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Differential cross section measurements for charge-transfer reaction at 10eV region.
10eV 区域电荷转移反应的微分截面测量。
  • 批准号:
    06640530
  • 财政年份:
    1994
  • 资助金额:
    $ 13.89万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Determination of surface electronic states of solids in solution by means of charge transfer reaction inverse photoemission spectroscopy (CTRIPS).
通过电荷转移反应逆光电子能谱 (CTRIPS) 测定溶液中固体的表面电子态。
  • 批准号:
    02453001
  • 财政年份:
    1990
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    $ 13.89万
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    Grant-in-Aid for General Scientific Research (B)
Elucidation of Charge-Transfer Reaction Kinetics in Zirconia Electrolyte Cells
氧化锆电解质电池中电荷转移反应动力学的阐明
  • 批准号:
    8502407
  • 财政年份:
    1985
  • 资助金额:
    $ 13.89万
  • 项目类别:
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