Although first considered as too diluted for the formation of molecules in-situ and too harsh
an environment for their survival, the interstellar medium has turned out to host a rich palette …

We report the detection, for the first time in space, of a new non-functionalised hydrocarbon
cycle in the direction of TMC-1: oC 6 H 4 (ortho-benzyne). We derive a column density for …

To date, 241 individual molecular species, composed of 19 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

We present laboratory rotational spectroscopy of five isomers of cyanoindene (2-, 4-, 5-, 6-,
and 7-cyanoindene) using a cavity Fourier transform microwave spectrometer operating …

A family of unidentified infrared emission (UIE) bands has been observed throughout the
Universe. The current observed spectral properties of the UIE bands are summarized. These …

We report the detection of fulvenallene (cC 5 H 4 CCH 2) in the direction of TMC-1 with the
QUIJOTE 1 line survey. Thirty rotational transitions with K a= 0, 1, 2, 3 and J= 9− 15 were …

We report the detection of two isomers of ethynyl cyclopentadiene (cC 5 H 5 CCH), namely 1-
and 2-ethynyl-1, 3-cyclopentadiene, in the direction of TMC-1. We derive column densities of …

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

We have conducted an extensive search for nitrogen-, oxygen-, and sulfur-bearing
heterocycles toward Taurus Molecular Cloud 1 (TMC-1) using the deep, broadband …

We report the detection of large hydrocarbon cycles toward several cold dense clouds. We
observed four sources (L1495B, Lupus-1A, L483, and L1527) in the Q band (31− 50 GHz) …