aromatic infrared bands Archives

Experimental and calculated infrared spectra and the chemical structures of CNN isomers: (a) 1-CNN, (b) 2-CNN. The black curves represent the experimental gas-phase infrared spectra of CNNs, the red curves show the calculated harmonic infrared spectra, and the blue curves correspond to the calculated anharmonic infrared spectra.-- Astronomy & Astrophysics

Infrared Spectroscopy Of Cyanonaphthalenes Under Interstellar Relevant Conditions And Their Potential Connection With Astronomical Aromatic Infrared Bands

by Keith CowingOctober 16, 2026October 16, 2026

[Astronomy & Astrophysics] Context. Aromatic infrared bands (AIBs) are widely observed in diverse astrophysical environments and are generally attributed to vibrational emission from polycyclic aromatic hydrocarbons (PAHs). The recent interstellar […]

Schematic overview of the molecular beam setup incorporating two infrared laser sources

Astrochemistry

Interstellar Aromatic Infrared Bands: IR Absorption Spectroscopy Of The Lowest Triplet State Of Naphthalene

by Keith CowingAugust 27, 2026August 27, 2026

[astro-ph.GA] The aromatic infrared bands (AIBs), emission features observed ubiquitously across a wide variety of interstellar objects, are commonly attributed to radiative cooling of highly-excited ground-state vibrational levels of polycyclic […]