✦ LIBER ✦

Measurements of the strengths of infrared bands of CF2

✍ Scribed by J. Wormhoudt; K.E. McCurdy; J.B. Burkholder

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 480 KB
Volume: 158
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(89)87374-9

No coin nor oath required. For personal study only.

✦ Synopsis

The Y, infrared band strength of the CF, radical has been measured using tunable diode laser absorption by the 'R, (20) line at 1240.50 cm-'. Experiments were performed in a flow apparatus in which CFZ was generated by thermal dissociation of CF,HCI.

Simultaneous single pass absorption of UV l&t from a KrF excimer laser was used with a hterature value of the UV absorption cross section to quantify CFz concentrations.

The measured line strength at 360 K is (1.4kO.4)X 1020cm-' (molecule/cm2)-'.

This results in a band strength of ( 1.1 fO.4) x IO-" cm-' (molecule/cm2)-', in good agreement with a measurement using a different technique. Analysis of FTIR spectra of the Y, and v, bands indicates that the vj band strength is larger by a factor of 2.4.

📜 SIMILAR VOLUMES

High-Resolution Infrared Measurements an

High-Resolution Infrared Measurements and Analysis of the ν4Band of CF2=CHF

✍ R. Visinoni; S. Giorgianni; A. Baldacci; M. Pedrali; S. Ghersetti 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 176 KB

The n 4 band of CF 2 |CHF near 1265 cm 01 has been studied at a resolution of ca. 0.002 cm 01 using spectra obtained with a tunable diode laser spectrometer. This vibration, of A symmetry, gives rise to a type ab hybrid band where the a-type component dominates. The rovibrational analysis led to the

Infrared Laser Spectroscopy of the ν2 Ba

Infrared Laser Spectroscopy of the ν2 Band of Difluorocarbene (CF2)

✍ H.B. Qian; P.B. Davies 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 340 KB

The spectrum of the \(\nu_{2}\) fundamental band of \(\mathrm{CF}_{2}\left(\dot{X}^{1} A_{1}\right)\) has been recorded at Dopplerlimited resolution between 638 and \(706 \mathrm{~cm}^{-1}\) using a diode laser spectrometer. This band is predicted to be about 250 times weaker than the symmetric stre

Infrared diode laser spectroscopy of the

Infrared diode laser spectroscopy of the ν3 band of CF2

✍ P.B. Davies; P.A. Hamilton; J.M. Elliott; M.J. Rice 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 699 KB

The infrared spectrum of CF2 (OF)2

✍ Ronald W. Mitchell; James A. Merritt 📂 Article 📅 1967 🏛 Elsevier Science 🌐 English ⚖ 135 KB

Line strength measurements of the 2ν3 ba

Line strength measurements of the 2ν3 band of methane

✍ Jack S. Margolis 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 354 KB

A measurement of the strength of the ν2

A measurement of the strength of the ν2 band of CH3

✍ J. Wormhoudt; K.E. McCurdy 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 374 KB

The infrared band strength of the Ye band of the methyl radical has been measured using tunable diode laser absorption by the Q8(8) line at 608.3 cm-'. Experiments were performed in a discharge-flow apparatus, using the homogeneous recombination decay to quantify CH, concentrations. The measured li