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We performed a new study of the 1,3-propanediol spectrum in a frequency range from 49 to 237 GHz. With the help of SPFIT program using a model of two substates between which the system tunnels a fit of 5902 rotational transitions with J ≤ 55 and Ka ≤ 30 within experimental error was obtained. Our results give an opportunity to produce reliable predictions of the 1,3-propanediol conformer I spectrum...
We performed a new study of acetaldehyde spectrum in a broad frequency range from 0.05 to 1.6 THz. In the framework of the rho axis method a fit within experimental error was obtained for the rotational transitions with J≤66 and Ka≤22 of the vt = 0,1,2 states of acetaldehyde. Our results give an opportunity to produce reliable predictions of the acetaldehyde spectrum in the working frequency range...
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