First Analysis of the 1鈥?i>v鈥?/i> Progression of the 脜ngstr枚m (B1危+鈥揂1螤) Band System in the Rare 13C17O Isotopologue
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- 作者：Rafa艂 Hakalla ; Miros艂aw Zachwieja ; Wojciech Szajna
- 刊名：Journal of Physical Chemistry A
- 出版年：2013
- 出版时间：November 27, 2013
- 年：2013
- 卷：117
- 期：47
- 页码：12299-12312
- 全文大小：617K
- 年卷期：v.117,no.47(November 27, 2013)
- ISSN：1520-5215
文摘
The 1鈥?i>v鈥?progression of the 脜ngstr枚m band system, so far unobserved in the rare 13C17O isotopologue, was obtained under high resolution as an emission spectrum using a high accuracy dispersive optical spectroscopy. In the studied region 22鈥?00鈥?4鈥?00 cm鈥?, 146 spectral lines were observed, among which 118 were interpreted as belonging to the 1鈥? and 1鈥? bands of B鈥揂 system, and the next 28 were interpreted as extra lines belonging to the 1鈥? band of B1危+鈥揺3危鈥?/sup> intercombination system, also unobserved in the 13C17O molecule so far. All those lines were precisely measured with an estimated accuracy better than 0.0025 cm鈥?, and rotationally analyzed. As a result the following in the 13C17O molecule were calculated for the first time: the merged rotational constants B1 = 1.790 227(23) cm鈥?, D1 = 6.233(47) 脳 10鈥? cm鈥?, and 螖G1/2 = 2010.9622 (69) cm鈥? and the equilibrium constants, 蠅e = 2076.04(57) cm鈥?, 蠅exe = 32.54(28) cm鈥?, Be = 1.824鈥?78(15) cm鈥?, 伪e = 2.2967(24) 脳 10鈥? cm鈥?, De = 5.226(25) 脳 10鈥? cm鈥?, and 尾e = 6.71(48) 脳 10鈥? cm鈥? for the B1危+ Rydberg state, as well as the individual rotational constant B0 = 1.504 85(78) cm鈥?, and the equilibrium constants 蠅e = 1463.340(21) cm鈥?, Be = 1.499 02(12) cm鈥?, 伪e = 1.778 2(49) 脳 10鈥? cm鈥?, De = 7.36(56) 脳 10鈥? cm鈥? for the A1螤 state, and 蟽e = 21 854.015(51) cm鈥?, RKR turning points, Franck鈥揅ondon factors (FCF), relative intensities, and r centroids for the 脜ngstr枚m band system. With the help of the strong and vast A1螤 (v = 0) e3危鈥?/sup> (v = 1) interaction, the experimental parameters of the e3危鈥?/sup> (v = 1) perturbing state were established in the 13C17O molecule for the first time.