Articles written in Pramana – Journal of Physics
Volume 88 Issue 1 January 2017 Article ID 0010 Regular
Wiesenfeld and Faure investigated rotational quenching of H$_2$CO by molecular hydrogen where they considered 40 rotational levels of $o$-H$_2$CO and 41 rotational levels of $p$-H$_2$CO. Data on energies of rotationallevels of the molecule are fundamental in the investigation. We have found that the sequence of levels reported by Wiesenfeld and Faure is not as per convention of molecular physics. Their results are also available on the website: http://home.strw.leidenuniv.nl/∼moldata/datafiles/ph2co-h2.dat, where the collisional transitions are shown even between the levels having equal energies. Data for such transitions should not be there.
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