Korsmeyer, Julie M.’s team published research in ACS Earth and Space Chemistry in 6 | CAS: 191-07-1

ACS Earth and Space Chemistry published new progress about 191-07-1. 191-07-1 belongs to catalysis-chemistry, auxiliary class Electronic Materials, name is Coronene, and the molecular formula is C24H12, Application In Synthesis of 191-07-1.

Korsmeyer, Julie M. published the artcileInfrared Spectroscopy and Photochemistry of Anthracoronene in Cosmic Water Ice, Application In Synthesis of 191-07-1, the publication is ACS Earth and Space Chemistry (2022), 6(1), 165-180, database is CAplus and MEDLINE.

We present a laboratory study of the polycyclic aromatic hydrocarbon (PAH) anthracoronene (AntCor, C36H18) in simulated interstellar ices in order to determine its possible contribution to the broad IR absorption bands in the 5-8¦Ìm wavelength interval. The Fourier transform IR (FTIR) spectrum of AntCor, codeposited with water ice, was collected. The FTIR spectrum of the sample irradiated with UV photons was also collected. Unirradiated and UV-irradiated AntCor embedded in water ice have not been studied before; therefore, the mol.’s band positions and intensities were compared to published data on AntCor in an argon matrix and theor. calculations (DFT), as well as the published results of its parent mols., coronene and anthracene, in water ice. The exptl. band strengths for unirradiated AntCor exhibit variability as a function of PAH:H2O concentration, with two distinct groupings of band intensities. AntCor clustering occurs for all concentrations and has a significant effect on PAH degradation rates and photoproduct variability. Near-IR spectra of irradiated AntCor samples show that AntCor+ production increases as the concentration of AntCor in water ice decreases. Photoproduct bands are assigned to AntCor+, cationic alcs., protonated AntCor, and ketones. We report the rate constants of the photoproduct production for the 1:1280 AntCor:H2O concentration CO2 production from AntCor is much less than what was previously reported for Ant and Cor and exhibits two distinct regimes as a function of AntCor:H2O concentration The contribution of AntCor photoproducts to astronomical spectra can be estimated by comparison with the observed intensities in the 7.4-8.0¦Ìm range.

ACS Earth and Space Chemistry published new progress about 191-07-1. 191-07-1 belongs to catalysis-chemistry, auxiliary class Electronic Materials, name is Coronene, and the molecular formula is C24H12, Application In Synthesis of 191-07-1.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia