Observation of dipole forbidden transitions of C2

C2 偶极子禁戒跃迁的观察

• 批准号: 24750010
• 负责人: NAKAJIMA MASAKAZU
• 金额: $ 2.83万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24750010/
• 关键词: C2ラジカル; c状態; 摂動解析; スピン－軌道相互作用; C2; 摂動; スピン軌道相互作用; C2分子; 異重項間遷移; d-c遷移

Higher vibrational levels of C2 were observed through visible band systems. Molecular constants of the c-state of C2 were precisely determined from room-temperature spectra of the d-c band system. We found that the c(v=1) state shows a level-crossing with the a(v=7) state. The perturbation analysis between the c(v=1) and a(v=7) states has been carried out. Accurate rovibronic level energies which have been determined from the experiment indicate that the singlet A(v=2) state is located very close to the triplet a(v=7) state, interacting with each other. However, the direction of the observed level shifts in the A(v=2) state cannot be explained with the literature value of the single-triplet energy gap, T0(a-X)=610.4 cm-1. It is concluded that the singlet-triplet energy gap should be modified by more than 3 cm-1 from the literature value.

通过可见光波段系统观察到C2的较高振动能级。根据D-C带系的室温光谱，精确地测定了C2的C态分子常数。我们发现，c(v=1)态与a(v=7)态存在能级交叉。对c(v=1)和a(v=7)态进行了微扰分析。由实验测得的精确振子能级表明，单态A(v=2)与三态a(v=7)位置非常接近，相互作用。然而，观察到的A(v=2)态能级移动的方向不能用单三重态能隙的文献值T0(a-X)=610.4 cm-1来解释。结果表明，单重态-三重态能隙应从文献值修正3 cm-1以上。

项目成果

C_2分子d-c遤移のLIF分光

C_2分子d-c跃迁的LIF光谱

• 发表时间: 2013
• 作者: 中島正和;遒藤泰樹
• 通讯作者: 遒藤泰樹

C_2分子a^3Π_u～c^3∑_u+状態間の摂動解析

C_2分子a^3Π_u～c^3Σ_u+状态间的微扰分析

• 发表时间: 2014
• 作者: 中島正和;遒藤泰樹
• 通讯作者: 遒藤泰樹

Molecular Constants of C_2 in the c^3Σ_u^+ state

C_2在c^3Σ_u^+状态下的分子常数

• 发表时间: 2013
• 作者: J. Lower;M. Yamazaki;M. Takahashi;庄司光男,氏家謙,田中弥,栢沼愛,梅田宏明,町田康博,村川武志,林秀行;Masakazu Nakajima and Yasuki Endo
• 通讯作者: Masakazu Nakajima and Yasuki Endo

C2分子d-c遷移のLIF分光

C2 分子 d-c 跃迁的 LIF 光谱

• 发表时间: 2013
• 作者: 中島正和;遒藤泰樹;中島正和・遠藤泰樹
• 通讯作者: 中島正和・遠藤泰樹

MOLECULAR CONSTANTS OF C2 IN THE c3 Sigma+u STATE.

c3 Sigma u 状态下 C2 的分子常数。

• 发表时间: 2013
• 作者: M. Taguchi;Y. Komatsu;A. Sato;M. Shoji;M. Kayanuma;K. Kamiya;K. Shiraishi;K. Yabana;and M. Umemura;Masakazu Nakajima and Yasuki Endo
• 通讯作者: Masakazu Nakajima and Yasuki Endo