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 …

Quantum chemistry can uniquely answer astrochemical questions that no other technique
can provide. Computations can be parallelized, automated, and left to run continuously …

Context. Complex organic molecules (COMs) are ubiquitously detected in the gas phase
and thought to be mostly formed on icy grains. Nevertheless, there have not been any …

A quarter century after the detection of the last interstellar carboxylic acid, acetic acid (CH 3
COOH), we report the discovery of a new one, the cis-trans form of carbonic acid …

Interstellar amides have attracted significant attentions as they are potential precursors for a
wide variety of organics essential to life. However, our current understanding of their …

Nitriles play a key role as molecular precursors in prebiotic experiments based on the RNA-
world scenario for the origin of life. These chemical compounds could have been partially …

We present a new technique for the detection of molecules desorbed from an ice surface
using broad-band millimeter-wave rotational spectroscopy. The approach permits …

Context. Substituted methanimines and ethylenes have been identified in the interstellar
medium. Therefore, allylimine (CH 2= CH–CH= NH) represents a promising candidate for a …

Context. Isobutene ((CH 3) 2 C= CH 2) is one of the four isomers of butene (C 4 H 8). Given
the detection of propene (CH 3 CH= CH 2) toward TMC-1, and also in the warmer …

We report the first detection of SiC 2 in the interstellar medium. The molecule was identified
through six rotational transitions toward G+ 0.693-0.027, a molecular cloud located in the …