![Molecular structure of the two conformational isomers that are connected through a single bond rotation,syn and anti CH2CHCHS. The numbers represent the zero-point energy corrected energy separation in kcal mol−1 at the CCSD(T)-F12/cc-pVTZ-F12//SCS-MP2/aug-cc-pVTZ, described later in the text. -- [astro-ph.GA]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/07/Laboratory-spectroscopy.png?resize=1200%2C723&ssl=1)
[astro-ph.GA] We report the laboratory characterization of the higher-energy isomer of propenethial, syn-CH2CHCHS. While the lower-energy isomer, anti-CH2CHCHS, was detected in the interstellar medium during the QUIJOTE line survey of […]
QUIJOTE
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy, Status Report
TMC-1: Probing The Onset Of Chemical Complexity In Space
In recent years, the obsessive interest in the observation of TMC-1 has brought a boost in our knowledge of the chemistry of cold dark clouds. The number of molecules detected […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy, Status Report
Discovery Of Linear Propadienone: Study Of The Chemistry Of Linear And Cyclic H2C3O And H2C3S In TMC-1
We report the first detection in space of propadienone, the linear isomer (l-H2C3O) of cyclopropenone (c-H2C3O).
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Interstellar, Meteorites & Asteroids, Status Report
Production of Linear Alkanes via the Solid-state Hydrogenation of Interstellar Polyynes
Highly unsaturated carbon chains, including polyynes, have been detected in many astronomical regions and planetary systems.