The nature of the intermolecular forces between water molecules is the same in small
hydrogen-bonded clusters as in the bulk. The rotational spectra of the clusters therefore give …

Context. The discovery of amino acids in meteorites fallen to Earth and the detection of
glycine, the simplest of them, in samples returned from a comet to Earth strongly suggest that …

Over the recent years chirped-pulse, Fourier-transform microwave (CP-FTMW)
spectrometers have changed the scope of rotational spectroscopy. The broad frequency and …

Recent advances in gas-phase structure determination afford outstanding agreement
between the CCSD (T)/cc-pCVTZ-corrected semi-experimental (re SE) equilibrium structures …

The recent analysis of the composition of the frozen surface of comet 67P/Churyumov-
Gerasimenko has revealed a significant number of complex organic molecules. Methyl …

The pure rotational spectrum of pyrimidine (mC 4 H 4 N 2), the meta-substituted dinitrogen
analog of benzene, has been studied in the millimeter-wave region from 235 GHz to 360 …

The rotational spectrum of thiophene (cC 4 H 4 S) has been collected between 8 and 360
GHz. Samples of varying deuterium-enrichment were synthesized to yield all possible …

Using broadband rotational spectroscopy, we report here on the delicate interplay between
hydrogen bonds and dispersive forces when an unprecedentedly large organic molecule …

The millimeter-wave rotational spectrum of ketene (H 2 C= C= O) has been collected and
analyzed from 130 to 750 GHz, providing highly precise spectroscopic constants from a …

The pure rotational spectrum of thiazole (cC 3 H 3 NS, C s) has been studied in the
millimeter-wave region from 130 to 375 GHz. Nearly 4800 newly measured rotational …