Bürger H, Jerzembeck W
Anorganische Chemie, FB 9, Universität-Gesamthochschule, Wuppertal, D 42097, Germany
J Mol Spectrosc. 1998 Apr;188(2):209-14. doi: 10.1006/jmsp.1998.7528.
High-resolution ( approximately 3 x 10(-3) cm-1) FTIR spectra of the planar SCF2 molecule have been recorded in the range of the four lowest-lying fundamentals nu2 (789.535 cm-1), nu3 (526.697 cm-1), nu5 (419.546 cm-1), and nu6 (623.187 cm-1). For each band 4500-7500 transitions have been assigned and fitted to a standard Watson-type Hamiltonian up to quartic terms, sigma(Fit) approximately 3.5 x 10(-4) cm-1. No indication of rovibrational perturbations was found, excited state rotational and centrifugal distortion constants being close to their ground state values. Ground state parameters previously determined from microwave spectra were, in part, improved by a merge of the appropriately weighted microwave data and approximately 10 000 ground state combination differences that were obtained from the nu4 band and spanning J and Ka values of 88 and 49, respectively. Copyright 1998 Academic Press.
已记录平面SCF2分子的高分辨率（约3×10(-3) cm-1）傅里叶变换红外光谱，范围涵盖四个最低基频ν2（789.535 cm-1）、ν3（526.697 cm-1）、ν5（419.546 cm-1）和ν6（623.187 cm-1）。对于每个谱带，已指定4500 - 7500个跃迁，并将其拟合到标准的沃森型哈密顿量直至四次项，拟合标准差（σ(Fit)）约为3.5×10(-4) cm-1。未发现振转微扰迹象，激发态转动和离心畸变常数接近其基态值。先前从微波光谱确定的基态参数，部分通过合并适当加权的微波数据和约10000个基态组合差得到改进，这些组合差是从ν4谱带获得的，分别涵盖J值为88和Ka值为49的范围。版权所有1998年学术出版社。
