Tracing the primordial chemical life of glycine: a review from quantum chemical simulations
Glycine (Gly), NH2CH2COOH, is the simplest amino acid. Although it has not been directly
detected in the interstellar gas-phase medium, it has been identified in comets and …
detected in the interstellar gas-phase medium, it has been identified in comets and …
Miller experiments in atomistic computer simulations
The celebrated Miller experiments reported on the spontaneous formation of amino acids
from a mixture of simple molecules reacting under an electric discharge, giving birth to the …
from a mixture of simple molecules reacting under an electric discharge, giving birth to the …
Formamide reaction network in gas phase and solution via a unified theoretical approach: Toward a reconciliation of different prebiotic scenarios
Increasing experimental and theoretical evidence points to formamide as a possible hub in
the complex network of prebiotic chemical reactions leading from simple precursors like H2 …
the complex network of prebiotic chemical reactions leading from simple precursors like H2 …
A chemical link between methylamine and methylene imine and implications for interstellar glycine formation
PR Joshi, YP Lee - Communications chemistry, 2022 - nature.com
Methylamine CH3NH2 is considered to be an important precursor of interstellar amino acid
because hydrogen abstraction might lead to the aminomethyl radical• CH2NH2 that can …
because hydrogen abstraction might lead to the aminomethyl radical• CH2NH2 that can …
Gas-Phase vs. Grain-Surface Formation of Interstellar Complex Organic Molecules: A Comprehensive Quantum-Chemical Study
Several organic chemical compounds (the so-called interstellar complex organic molecules,
iCOMs) have been identified in the interstellar medium (ISM). Examples of iCOMs are …
iCOMs) have been identified in the interstellar medium (ISM). Examples of iCOMs are …
Pathways to meteoritic glycine and methylamine
Glycine and methylamine are meteoritic water-soluble organic compounds that provide
insights into the processes that occurred before, during, and after the formation of the Solar …
insights into the processes that occurred before, during, and after the formation of the Solar …
Chemical reactions induced in frozen formic acid by heavy ion cosmic rays
We studied the effects produced by the interaction of heavy ion cosmic rays with interstellar
and cometary organic molecules in the solid phase. Formic acid (HCOOH) ice at 15 K was …
and cometary organic molecules in the solid phase. Formic acid (HCOOH) ice at 15 K was …
The effect of broadband soft X-rays in SO2-containing ices: implications on the photochemistry of ices toward young stellar objects
We investigate the effects produced mainly by broadband soft X-rays up to 2 keV (plus fast
(∼ keV) photoelectrons and low-energy (∼ eV) induced secondary electrons) in the ice …
(∼ keV) photoelectrons and low-energy (∼ eV) induced secondary electrons) in the ice …
Enantiodetermining processes in the synthesis of alanine, serine, and isovaline
Q Liao, P **e, Z Wang - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
In this study, quantum chemical calculations were used to explore the synthesis of three
chiral α-amino acids, specifically alanine, serine, and isovaline, from reactants found in …
chiral α-amino acids, specifically alanine, serine, and isovaline, from reactants found in …
The influence of crystallinity degree on the glycine decomposition induced by 1 MeV proton bombardment in space analog conditions
S Pilling, LAV Mendes, V Bordalo, CFM Guaman… - Astrobiology, 2013 - liebertpub.com
Glycine is the simplest proteinaceous amino acid and is present in all life-forms on Earth. In
aqueous solutions, it appears mainly as zwitterion glycine (+ NH3CH2COO−); however, in …
aqueous solutions, it appears mainly as zwitterion glycine (+ NH3CH2COO−); however, in …