Kolesniková Lucie, Varga Juraj, Stríteská Lucie Nová, Beckers Helmut, Willner Helge, Aubke Friedhelm, Urban Stepán
Department of Analytical Chemistry, Institute of Chemical Technology, 166 28 Prague 6, Czech Republic.
J Chem Phys. 2009 May 14;130(18):184309. doi: 10.1063/1.3118967.
The rotational spectra of the fluorosulfate (FSO(3)) molecular radical in its vibronic ground state were measured in the millimeter-wave region and analyzed in detail using the matrix elements of the rotational, fine, and hyperfine Hamiltonian terms. The analysis of the assigned transition frequencies made it possible to derive very precise values of the rotational, centrifugal distortion and fine structure constants and to confirm the C(3v) molecular symmetry of the vibronic ground state unambiguously. In addition, an effective parameter of the "A(1)-A(2) splitting" was determined. The rotational transitions of the FSO(3) free radical were observed, identified, and analyzed for the first time.
在毫米波区域测量了处于振转基态的氟代硫酸根（FSO(3)）分子自由基的转动光谱，并使用转动、精细和超精细哈密顿项的矩阵元进行了详细分析。对已确定的跃迁频率进行分析，使得能够得出转动、离心畸变和精细结构常数的非常精确的值，并明确确认振转基态的C(3v)分子对称性。此外，还确定了一个“ A(1)-A(2)分裂”的有效参数。首次观测、识别并分析了FSO(3)自由基的转动跃迁。
