Year: 2017
Type: article
Abstract: In order to analyze a spectrum from the interstellar medium, the spectrum of the molecule of interest is recorded in a laboratory, and accurate rotational and centrifugal distortion constants are derived. By using these constants, one can calculate accurate partition function as a function of temperature. However, in the same paper, where these constants are derived, the partition function is calculated by using a semi‐empirical expression. We looked into the details of this semi‐empirical expression and compared the values obtained from it with the accurate ones. By considering the case of methanimine, we investigated the impact of the partition function on the total internal energy and the specific heat at constant volume.
Source: Astronomische Nachrichten
Authors: M. K. Sharma, M. Sharma, A. K. Sharma, S. Chandra
Institution: Amity University
Language: English
Subfield: Spectroscopy
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2963029552