In this paper we demonstrate how asymmetric molecular rotational spectra may
be introduced to students both "pictorially" and with simple formulae. It is
shown that the interpretation of such spectra relies heavily upon pattern
recognition. The presentation of some common spectral patterns in near-prolate
asymmetric rotational spectra provides a means by which spectral assignment,
and approximate rotational constant determination, may be usefully explored in
the physics and chemistry classrooms. To aid in this endeavor we have created a
supporting, free, web page and mobile web page.Comment: 20 pages, 11 figure

Cooke, S. A.

Ohring, P.

English

arXiv

Rotational spectroscopy can provide insights of unparalleled precision with respect to the wavefunctions of molecular systems that have relevance in fields as diverse as astronomy and biology. In this paper, we demonstrate how asymmetric molecular pure rotational spectra may be analyzed “pictorially” and with simple formulae. It is shown that the interpretation of such spectra relies heavily upon pattern recognition. The presentation of some common spectral line positions in near-prolate asymmetric rotational spectra provides a means by which spectral assignment, and approximate rotational constant determination, may be usefully explored. To aid in this endeavor we have created a supporting, free, web page and mobile web page.</jats:p

S. A. Cooke

P. Ohring

Crossref

Journal of Spectroscopy

Decoding Pure Rotational Molecular Spectra for Asymmetric Molecules

Rotational spectroscopy can provide insights of unparalleled precision with respect to the wavefunctions of molecular systems that have relevance in fields as diverse as astronomy and biology. In this paper, we demonstrate how asymmetric molecular pure rotational spectra may be analyzed “pictorially” and with simple formulae. It is shown that the interpretation of such spectra relies heavily upon pattern recognition. The presentation of some common spectral line positions in near-prolate asymmetric rotational spectra provides a means by which spectral assignment, and approximate rotational constant determination, may be usefully explored. To aid in this endeavor we have created a supporting, free, web page and mobile web page

Decoding Pure Rotational Molecular Spectra for Asymmetric Molecules

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