Pressure broadening of the lowest rotational transition of H35Cl by N2 and O2

✍ Scribed by L Zu; P.A Hamilton; K.V Chance; P.B Davies

• Book ID: 104151813
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 199 KB
• Volume: 220
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1016/s0022-2852(03)00096-1

✦ Synopsis

The nitrogen and oxygen pressure broadening coefficients of the J ¼ 1 0 transition of H 35 Cl at 626 GHz (21 cm À1 ) have been measured using a high resolution tunable far infrared sideband spectrometer. The profiles of the three 35 Cl hyperfine components of the transition were separately fitted to Voigt line shapes and the Lorentzian widths determined over a range of broadening gas pressures up to 1.1 Torr for nitrogen and 1 Torr for oxygen. The room temperature pressure broadening coefficient for nitrogen was derived as 3.46(6) MHz/Torr and for oxygen as 2.70(5) MHz/Torr.