Spectroscopic Studies of van-der Waals Molecules under Extremely High-electric Field

极高电场下范德华分子的光谱研究

• 批准号: 10640482
• 负责人: AMANO Takayoshi
• 金额: $ 2.43万
• 依托单位: IBARAKI UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10640482/
• 关键词: High-electric field; van der Waals molecules; Dissociative recombination; Rydberg transition; ファンデルワールス分子; 強電場; 分子配向; 超音速分子線

The project was initially designed to study the tunneling dynamics of ammonia in strong electric field. It is seen that our studies have deviated from our original proposal as a result of changing personnel in 1999. The focus of the project has shifted to molecular dynamics in weakly ionized plasma. In this report, a review of molecular dynamics in strong electric field as well as the results of the formation mechanism of DィイD3+(/)3ィエD3 in weakly ionized plasma will be presented. In the first year of the funding period, we completed the construction of the primary chamber for the generation of supersonic free jet of gas. T. Amano has tested the performance of the system by studying the near infrared band ィイD11ィエD1SuィイD1+ィエD1׬ ィイD13ィエD1SgィイD1-ィエD1 of OィイD22ィエD2. A high voltage (50 kV) DC power supply was purchased for the generation of high electric fields. The proposed experiments proceeded no further after the resignation of Man-Chor Chan in 1999. In the past funding period, we have pursued molecular dynamic studies of hydrogen plasmas. Our observation has led to a better understanding of the chemistry in this system, such as dissociative recombination reaction of HィイD3+(/)3ィエD3 (and DィイD3+(/)3ィエD3) and the concentrations of DィイD23ィエD2 and DィイD3+(/)5ィエD3. This information will be useful in our future search for the spectrum of HィイD3+(/)5ィエD3 (and DィイD3+(/)5ィエD3). Further systematic investigation of the DィイD23ィエD2 spectrum will also he important in verifying our interpretation of the linewidths and lineshapes.

该项目最初旨在研究氨在强电场中的隧穿动力学。我们在1999年进行了人事变动，可见我们的研究偏离了原来的建议。该项目的重点已转移到弱电离等离子体中的分子动力学。本文综述了强电场中的分子动力学以及弱电离等离子体中D_3 ~+（/）_3 ~+ D_3的形成机制。在资助期的第一年，我们完成了用于产生超音速自由气体射流的初级室的建造。T.天野之弥通过研究O D22 D2的近红外波段D11 D1 Su D1+ D1 × D13 D1 Sg D1-D1测试了系统的性能。购买高压（50 kV）DC电源用于产生高电场。1999年Man-Chor Chan辞职后，拟议的实验没有进一步进行。在过去的资助期间，我们进行了氢等离子体的分子动力学研究。我们的观察使我们更好地理解了这个系统中的化学，例如H D3+（/）3 D3（和D D3+（/）3 D3）的解离复合反应以及D D23 D2和D D3+（/）5 D3的浓度。这些信息将有助于我们将来寻找H D3+（/）5 D3（和D D3+（/）5 D3）的光谱。进一步系统地研究D_（23）~ D

项目成果

T. Amano: "The Lowest Submillimeter-wave Transitions of CH : The Laboratory measurement of the Rest Frequencies"Astrophys.J.Lett.. 531. L161 (2000)

T. Amano：“CH 的最低亚毫米波跃迁：静止频率的实验室测量”Astrophys.J.Lett.. 531. L161 (2000)

T.Amano et al: "Infrared absolution spectroscopy"Phil.Trans.Roy.Soc.London. A358(in press). (2000)

T.Amano 等人：“红外吸收光谱”Phil.Trans.Roy.Soc.London。

Zhang.et al: "High-resolution Infrared Spctroscopy"Physical Review. B58. 218-223 (1998)

张等人：“高分辨率红外光谱”物理评论。

M. Nezu, T. Amano, and K. Kawaguchi: "Transition Dipole Moments for the Vibrational Fundamentals of HNC Determined from the Herman-Wallis Effect"J.Mol.Spectrosc.. 192. 41 (1998)

M. Nezu、T. Amano 和 K. Kawaguchi：“根据 Herman-Wallis 效应确定的 HNC 振动基础的过渡偶极矩”J.Mol.Spectrosc.. 192. 41 (1998)

T.Amano,K.Akao,et al: "Pressure Broadening of O_2 in the a^1Δ_g state"Chemical Physics Letters. 433. 433-438 (1999)

T. Amano、K. Akao 等人：“a^1Δ_g 状态下 O_2 的压力展宽”《化学物理快报》433. 433-438 (1999)