We report the first detection in the interstellar medium (ISM) of a C 2 H 5 O 2 N isomer: syn-
glycolamide (NH 2 C (O) CH 2 OH). The exquisite sensitivity at sub-mK levels of an …

A large variety of molecules contain large amplitude motions (LAMs), inter alia internal
rotation and inversion tunneling, resulting in tunneling splittings in their rotational spectrum …

This paper is a review of various effective Hamiltonians, methods and codes dealing with
asymmetric-top molecules containing one internal rotor with C3v (or close to C3v) symmetry …

Context. Thioformaldehyde is an abundant molecule in various regions of the interstellar
medium. However, available laboratory data limit the accuracies of calculated transition …

The rotational spectrum of n-propanol (n-CH3CH2CH2OH) was studied with several
techniques of contemporary broadband rotational spectroscopy at frequencies from 8 to 550 …

We present a new global study of the submillimeter wave spectrum of the lowest three
torsional states of acetic acid (CH 3 COOH). New measurements involving torsion–rotation …

We have surveyed a sample of massive star-forming regions located over a range of
distances from the Galactic center for methyl formate, HCOOCH 3, and its isotopologues H …

Context. Glycinamide (NH 2 CH 2 C (O) NH 2) is considered to be one of the possible
precursors of the simplest amino acid, glycine. Its only rotational spectrum reported so far …

Aims. In this work, we aim to achieve the first laboratory detection of acetohydroxamic acid
(CH 3 CONHOH), a relevant glycine isomer, to enable its eventual identification in the ISM …

This paper is a review of molecules with internal rotors detected or tentatively detected with
upper limits in the interstellar medium. Internal rotor molecules containing one or two methyl …