Journal ArticleDOI
Formation of carbohydrates in the reaction of atomic carbon with water
TLDR
In this article, the cocondensation of atomic carbon with water at 77 K generates a mixture of straight chain aldoses with up to five carbons, and a proposed mechanism involves initial reaction of C with H 2 O to give hydroxymethylene which rearranges to formaldehyde.Abstract:
The cocondensation of atomic carbon with water at 77 K generates a mixture of straight chain aldoses with up to five carbons. A proposed mechanism involves initial reaction of C with H 2 O to give hydroxymethylene which rearranges to formaldehyde. Subsequent nucleophilic addition of hydroxymethylene to formaldehyde with hydrogen transfer generates glycolaldehyde which reacts with additional hydroxymethylenes to build up the higher carbohydrates. Confirmation of this mechanism is provided by deuterium labeling studiesread more
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Blue and near-UV phosphorescence from iridium complexes with cyclometalated pyrazolyl or N-heterocyclic carbene ligands.
Tissa Sajoto,Peter I. Djurovich,Arnold Tamayo,Muhammed Yousufuddin,Robert Bau,Mark E. Thompson,Russell J. Holmes,Stephen R. Forrest +7 more
TL;DR: Crystallographic analysis reveals that the imidazolyl-carbene ligand has a stronger trans influence than pyrazolyl and, thus, imparts a greater ligand field strength in the triscyclometalated Ir complexes.
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Tunnelling control of chemical reactions--the organic chemist's perspective.
TL;DR: An overview of the importance of tunnelling in organic chemical reactions is provided and experiments in combination with powerful computational approaches have demonstrated that tunnelled must be included to fully understand chemical reactivity.
Journal ArticleDOI
Serpentinization and the Formation of H2 and CH4 on Celestial Bodies (Planets, Moons, Comets)
TL;DR: Whether deep in Earth's interior or in Kuiper Belt Objects in space, serpentinization is a feasible process to invoke as a means of producing astrobiologically indispensable H2 capable of reducing carbon to organic compounds.
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Cyclopropenone (c-H2C3O): A New Interstellar Ring Molecule
TL;DR: The three-carbon keto ring cyclopropenylidene (c-H2C 3O) has been detected largely in absorption with the 100 m Green Bank Telescope (GBT) toward the star-forming region Sagittarius B2(N) by means of a number of rotational transitions between energy levels that have energies less than 10 K as discussed by the authors.
Journal ArticleDOI
Reduction of nitrogen compounds in oceanic basement and its implications for HCN formation and abiotic organic synthesis
Nils G. Holm,Anna Neubeck +1 more
TL;DR: Convergent margins in the initial phase of subduction must be considered the most potent sites for prebiotic reactions on Earth, which means that origin of life processes are, perhaps, only possible on planets where some kind of plate tectonics occur.