Publication
Title
The rotational spectrum of Roesky's ketone
Author
Abstract
The experimental rotational spectrum of 5-oxo-1,3,2,4-dithiadiazole (Roeskys ketone) has been recorded and the experimental rotational constants have been determined. The latter have been used to evaluate the performance of a large number of quantum chemical methods combined with different basis sets, by comparing the calculated with the experimental values. The results of this comparison indicate that, in general, the wave-function-based methods perform better than those from Density Functional Theory. Four of the 42 investigated method/basis set combinations prove to be the most valuable, i.e., MP4(SDQ)/(aug-)cc-pVTZ, B3PW91/cc-pV(T+d)Z and MPW1PW91/aug-cc-pVTZ, as they produce rotational constants with a root-mean-square deviation from the experimental values of only about 5 MHz.
Language
Dutch
Source (journal)
Journal of molecular structure. - Amsterdam
Publication
Amsterdam : 2010
ISSN
0022-2860
Volume/pages
978:1/3(2010), p. 147-152
ISI
000281083300023
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 10.11.2010
Last edited 22.07.2017
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