The millimeter-wave spectra of FN2+ and FCO+ and ab initio calculations for FCN, FCO+, FN2+, and FNC
作者:Peter Botschwina、Peter Sebald、Marcel Bogey、Claire Demuynck、Jean-Luc Destombes
DOI:10.1016/0022-2852(92)90473-2
日期:1992.5
Abstract The millimeter-wave spectra of FN 2 + and FCO + were obtained in a liquid-nitrogen-cooled discharge of a mixture of F 2 and N 2 or CO. Fifteen and thirteen lines were measured for FN 2 + and FCO + , respectively, from the positions of which rotational constants of 11 154.83371(70) and 10 768.6958(11) MHz were derived. Accompanying ab initio calculations predict ground state dipole moments
摘要 FN 2 + 和FCO + 的毫米波光谱是在F 2 和N 2 或CO 的混合物液氮冷却排放中获得的。分别测量了FN 2 + 和FCO + 的15 和13 条谱线。 ,从其旋转常数为 11 154.83371(70) 和 10 768.6958(11) MHz 的位置导出。伴随的从头算计算预测两种阳离子的基态偶极矩为 0.556 和 -0.269 D。对于 ν 3 ,即 FCO + 的伪不对称伸缩振动,获得了 2456 cm -1 的异常大波数。基态旋转常数和等电子 FNC 的电偶极矩比 FCN 不稳定 285 kJ mol -1 ,预计分别为 10 881(50) MHz 和 -1.583(30) D。