Direct observation of the D′ 2g(3P2)–A′ 3Π(2u) system for Cl2 by laser induced fluorescence spectroscopy: Determination of the absolute position of the A′ state
Direct observation of the D′ 2g(3P2)–A′ 3Π(2u) system for Cl2 by laser induced fluorescence spectroscopy: Determination of the absolute position of the A′ state
复制标题
通过激光诱导荧光光谱直接观察 Cl2 的 D′ 2g(3P2)–A′ 3Π(2u) 体系：确定 A′ 态的绝对位置
DOI：
10.1016/j.jms.2006.12.009
复制
发表时间：
2007
影响因子：
1.4
通讯作者：
Y. Endo
中科院分区：
文献类型：
--
作者：
Takashi Yoshikawa;Y. Sumiyoshi;Y. Endo
在放电的超音速Cl2射流中，用激光诱导荧光光谱直接观测到35Cl2的D‘2G(3P2)-A’3Π(2U)体系的跃迁。通过在Cl2中的放电，Cl2分子从X1的Σg+(0g+)态被填充到A‘态，这是一种亚稳态和光学禁态。紫外线激光辐射将分子激发到D‘离子对状态。根据对v“=0-7的59个振动带的全局最小二乘拟合确定A‘态的一组Dunham参数。在该拟合中，先前报道的v=14和A’态的15个带的数据T(V)和B(V)[T.Ishiwata，A.Ishiguro，K.Obi，J.Mol.分光度计。147(1991)300-320]，包括在内。Y00=57295.723(5)cm−1的D‘态[J.-H.Si，T.Ishiwata，K.Obi，J.Mol.分光度计。147(1991)334-345]也被包括在全局拟合中，以确定A‘状态的绝对位置。测定的A‘态参数为：Y00=17171.506(14)，Y10=255.915(85)，Y20=−4.465(70)，Y30=−8.7(23)×10−2，Y40=6.3(35)×10−3，Y50=−4.9(26)×10−4，Y60=1.43(69)×10−5，Y01=0.16282(15)，Y11=−2.363(68)×10−3，Y21=−5.01(93)×10−5，和Y31=−3.01(36)×10−6(单位为cm−1和括号中的1个拟合标准差)。确定了A‘态的绝对位置，具有较高的精度。
In a discharged supersonic jet of Cl2, transitions of the D′ 2g(3P2)–A′3Π(2u) system for35Cl2were observed directly by laser induced fluorescence spectroscopy. By a discharge in Cl2, the Cl2molecules were populated into the A′ state, which is a metastable and optically forbidden state, from the X1Σg+(0g+) state. An ultraviolet laser radiation excites the molecules to the D′ ion-pair state. A set of Dunham parameters for the A′ state is determined from a global least-squares fitting for 59 vibronic bands with v″=0–7. In the fitting, the previously reported data, T(v) and B(v) for the v=14 and 15 bands of the A′ state [T. Ishiwata, A. Ishiguro, K. Obi, J. Mol. Spectrosc. 147 (1991) 300–320], were included. Y00=57295.723(5)cm−1of the D′ state [J.-H. Si, T. Ishiwata, K. Obi, J. Mol. Spectrosc. 147 (1991) 334–345] was also included in the global fitting in order to determine the absolute position of the A′ state. The determined parameters of the A′ state are Y00=17171.506(14), Y10=255.915(85), Y20=−4.465(70), Y30=−8.7(23)×10−2, Y40=6.3(35)×10−3, Y50=−4.9(26)×10−4, Y60=1.43(69)×10−5, Y01=0.16282(15), Y11=−2.363(68)×10−3, Y21=−5.01(93)×10−5, and Y31=−3.01(36)×10−6(in cm−1and one standard deviations of the fit in parentheses). The absolute position of the A′ state is determined with good accuracy.
激光诱导荧光光谱法测定 HSCCS 自由基的气相电子光谱
DOI：
--
发表时间：
2005
期刊：
Journal of Molecular spectroscopy 232
影响因子：
--
作者：
Nakajima;M.;Yoneda;Y.;Toyoshima;H.;Sumiyoshi;Y.;Endo;Y
通讯作者：
Y