Portal de Periódicos da CAPES

High resolution analysis of the ν12 and ν17 fundamental bands of acrolein, CH2CHCHO, in the 600cm−1 region

2007; Elsevier BV; Volume: 242; Issue: 1 Linguagem: Inglês

10.1016/j.jms.2007.01.005

1096-083X

A. R. W. McKellar, D. W. Tokaryk, Li‐Hong Xu, D.R.T. Appadoo, Tim May,

Advanced Chemical Physics Studies

Synchrotron radiation from the new Canadian Light Source facility has been used to obtain a high resolution (0.0012 cm−1) absorption spectrum of acrolein vapor in the 550–660 cm−1 region. Almost 2000 transitions have been included in a detailed analysis of the ν12 (∼564 cm−1) and ν17 (∼593 cm−1) fundamental bands which yielded precise values for the band origins, rotational and centrifugal distortion parameters. The analysis included the a- and b-type Coriolis interactions connecting ν12 and ν17, as well as an a-type Coriolis interaction between ν17 and a “dark” perturbing state, identified as 4ν18. We believe that this is the first high resolution infrared study of acrolein.