A rotational analysis of the electronic transition of PtF occurring at 15,252 cm⁻¹ was recorded and analyzed. This transition is identified as the (0,0) band of the [15.3]Ω=3/2 – X ²Π_3/2 electronic transition. The PtF molecules were produced in a current regulated RF-pulsed DC discharge operating with 0.80 A applied to a Pt-lined copper hollow cathode in 0.50–1.25 Torr of 1–5% SF₆ in an Ar/He sputter gas mixture. The hollow cathode was placed within in the resonator cavity of a tunable DCM dye laser operating over the 14,500–16,500 cm⁻¹ range, and path lengths of 0.2–2.0 km were utilized with the intracavity laser spectroscopy (ILS) method. The data were fit in PGOPHER using a polynomial energy level expression. Molecular constants for the excited state are presented. The nature of the new [15.3]Ω = 3/2 state is discussed.

记录并分析了在 15,252 cm ^-1处发生的 PtF 电子跃迁的旋转分析。该跃迁被识别为 [15.3]Ω=3/2 – X ² Π _3/2电子跃迁的 (0,0) 带。PtF 分子是在电流调节的 RF 脉冲直流放电中产生的，在 Ar/He 溅射气体混合物中，在 0.50-1.25 Torr 的 1-5% SF ₆中以 0.80 A 电流施加到 Pt 衬里铜空心阴极。空心阴极放置在可调谐 DCM 染料激光器的谐振腔内，该激光器在 14,500–16,500 cm ^{-1 范围内运行}腔内激光光谱 (ILS) 方法使用了 0.2-2.0 公里的距离和路径长度。使用多项式能级表达式将数据拟合到 PGOPHER 中。提供了激发态的分子常数。讨论了新的 [15.3]Ω = 3/2 状态的性质。