rotational spectrum

rotational spectrum

[rō′tā·shən·əl ′spek·trəm]
(spectroscopy)
The molecular spectrum resulting from transitions between rotational levels of a molecule which behaves as the quantum-mechanical analog of a rotating rigid body.
References in periodicals archive ?
Explicitly, for the pure rotational spectrum we express these terms, implicitly in wavenumber unit, as
When Rick Suenram began his postdoctoral studies at NBS, one of his objectives was to obtain the rotational spectrum of glycine, the simplest amino acid.
115, 9253 (1993), The Rotational Spectrum and Structure of a Weakly Bound Complex of Ketene and Acetylene.