Results 1 to 10 of about 2,296,812 (225)

CH₃OH^•+ + CH₄ Reaction: Mechanistic Insights and Reaction Rates for Astrochemical and Atmospheric Environments. [PDF]

Molecules
Satta M, Catone D, Castrovilli MC, Nicolanti F, Cartoni A.   +4 more
europepmc   +1 more source

Spectroscopic evidence of the C–N covalent bond formed between two interstellar molecules (ISM): acrylonitrile and ammonia

Physical Chemistry Chemical Physics, 2021
A new CN covalent bond was formed between acrylonitrile and ammonia in ionization state.
Fufei Sun, Min Xie, Yu Zhang, Wentao Song, Xiaonan Sun, Yongjun Hu   +5 more
openaire   +3 more sources

Formation of Complex Organic Molecules (COMs) from Polycyclic Aromatic Hydrocarbons (PAHs): Implications for ISM IR Emission Plateaus and Solar System Organics

ACS Earth and Space Chemistry, 2020
The presence of complex organic molecules (COMs) in a variety of solar system objects has prompted various theories regarding their origins.
Andrew L. Mattioda, Gustavo A. Cruz-Diaz, Andrew Ging, Michael Barnhardt, Christiaan Boersma, Louis J. Allamandola, Todd Schneider, Jason Vaughn, Brandon Phillips, Alessandra Ricca   +9 more
openaire   +2 more sources

Rotational spectroscopy of 2,4,6-cycloheptatriene-1-carbonitrile: facilitating the search for complex cyclic molecules in the ISM

Physical Chemistry Chemical Physics
Cycloheptratriene-1-carbonitrile represents a natural next step in the complexity of detected CN-substituted molecules in space. We provide a comprehensive rotational spectroscopy analysis to facilitate its detection in the interstellar medium.
Gayatri Batra, Laura Pille, Benjamin E. Arenas, Melanie Schnell   +3 more
openaire   +4 more sources

Millimeter-Wave Spectroscopy of Metal-Bearing Molecules in the ISM

AIP Conference Proceedings, 2006
Over the past thirty years of millimeter astronomy, a great deal has been learned about interstellar molecules and their chemistry. Despite this progress, there are still areas of molecular astrophysics where challenges remain. One of these areas concerns the chemistry and distribution of molecules containing metals.
L. Ziurys
openaire   +2 more sources

Sobolev LVG Analysis of Prebiotic Molecule Formamide (NH2CHO) Found in the ISM

Astrophysics, 2021
Using known values of rotational and centrifugal distortion constants in conjunction with electric dipole moment of NH2CHO, we have calculated energies of rotational levels in the ground vibrational state, and the probabilities for radiative transitions between the levels.
M. K. Sharma, V. D. Mampatta, M. Sharma, S. Chandra   +3 more
openaire   +1 more source

Chemistry of NH2OH and its related species in the ISM

Monthly notices of the Royal Astronomical Society, 2023
Hydroxylamine (NH2OH) is a key precursor of both the formation of amino acids and the concurrent synthesis of pyrimidine and purine nucleosides. Recently, NH2OH was detected towards the quiescent molecular cloud G+0.693-0.027, which is located in the ...
Guoming Zhao, Mingwei He, D. Quan, Dalei Li, Xue Yang, Q. Chang, Ming-Shuo Ma, Minglei Qu   +7 more
semanticscholar   +1 more source

Thermodynamical stability of [CNN and NCN] sequences as indication of most abundant structures in the ISM

Astronomy & Astrophysics
Most of the molecules identified in the interstellar medium (ISM) are organic compounds and more than 50 have one isomer or more. Statistically, the most stable isomer of a given chemical formula is the most abundant.
I. Chataigner, F. Pauzat, O. Tasseau, Y. Ellinger, J. Guillemin   +4 more
semanticscholar   +1 more source

Irradiation of condensed CO reveals a new pathway for the formation of aromatic molecules in astrochemical ices.

Life sciences and space research
Given the importance of carbon monoxide in the interstellar medium (ISM) both in the gas and ice phase, the condensed phase CO has been studied by the irradiation of energetic particles, UV irradiation and the products formed from CO dissociation have ...
W. Khan, R. Ramachandran, S. Gupta, J. Meka, V. Venkataraman, B. Rajasekhar, P. Janardhan, Anil Bhardwaj, N. Mason, B. Sivaraman   +9 more
semanticscholar   +1 more source

How the addition of atomic hydrogen to a multiple bond can be catalyzed by water molecules

Journal of Computational Chemistry
Observational data show complex organic molecules in the interstellar medium (ISM). Hydrogenation of small unsaturated carbon double bond could be one way for molecular complexification.
Patrick Chaquin, F. Fuster, Alexis Markovits   +2 more
semanticscholar   +1 more source