Results 41 to 50 of about 302,506 (166)

Identification and characterization of a new ensemble of cometary organic molecules

open access: yesNature Communications, 2022
A new analysis of Rosetta mass spectra reveals an ensemble of complex organic molecules with striking similarities to other organic reservoirs in the Solar System, including Saturn’s ring rain material, pointing at a likely joint prestellar history.
N. Hänni   +6 more
doaj   +1 more source

UV and VUV Ionization of Organic Molecules, Clusters, and Complexes [PDF]

open access: yesThe Journal of Physical Chemistry A, 2009
The generation of organic particle beams is studied in combination with photoionization using uv radiation at 266 nm and vuv light at 157 nm. Single-photon ionization with pulsed vuv light turns out to be sensitive enough to detect various large neutral biomolecular complexes ranging from metal-amino acid complexes to nucleotide clusters and aggregates
Marksteiner, Markus   +4 more
openaire   +4 more sources

Bis(2-methoxybenzylammonium) diaquabis(dihydrogen diphosphato-κ2O,O′)cobaltate(II) dihydrate

open access: yesActa Crystallographica Section E, 2014
The title compound, (C8H12NO)2[Co(H2P2O7)2(H2O)2]·2H2O, crystallizes isotypically with its MnII analogue. It consists of alternating layers of organic cations and inorganic complex anions, extending parallel to (100).
Adel Elboulali   +4 more
doaj   +1 more source

Organic Molecules in the Icy Bodies of Planetary Systems – Accepted Notions and New Ideas

open access: yesOpen Astronomy, 2018
Cometary bodies are acknowledged to contain some of the most pristine matter in the Solar System, including ices and minerals. Certain number of previously unidentified spectral emission features detected in comets can be explained as emission by ...
Simonia Irakli, Cruikshank Dale P.
doaj   +1 more source

Digging into the Chemical Complexity in the Outer Galaxy: A Hot Molecular Core in Sh 2-283

open access: yesThe Astrophysical Journal
The outer Galaxy (Galactocentric distance ≳13.5 kpc) serves as an excellent laboratory for investigating the chemical complexity in low-metallicity environments.
Toki Ikeda   +5 more
doaj   +1 more source

Carbon Isotope Fractionation of Complex Organic Molecules in Star-forming Cores

open access: yesThe Astrophysical Journal
Recent high-resolution and sensitivity Atacama Large Millimeter/submillimeter Array observations have unveiled the carbon isotope ratios ( ^12 C/ ^13 C) of complex organic molecules (COMs) in a low-mass protostellar source. To understand the ^12 C/ ^13 C
Ryota Ichimura   +2 more
doaj   +1 more source

Understanding of complex spin up-conversion processes in charge-transfer-type organic molecules

open access: yesNature Communications
Despite significant progress made over the past decade in thermally activated delayed fluorescence (TADF) molecules as a material paradigm for enhancing the performance of organic light-emitting diodes, the underlying spin-flip mechanism in these charge ...
Hyung Suk Kim   +3 more
doaj   +1 more source

The Cell and the Sum of Its Parts: Patterns of Complexity in Biosignatures as Revealed by Deep UV Raman Spectroscopy

open access: yesFrontiers in Microbiology, 2019
The next NASA-led Mars mission (Mars 2020) will carry a suite of instrumentation dedicated to investigating Martian history and the in situ detection of potential biosignatures. SHERLOC, a deep UV Raman/Fluorescence spectrometer has the ability to detect
Haley M. Sapers   +8 more
doaj   +1 more source

Methyl Isocyanate Formation from Oxygen Insertion in Methyl Cyanide Ices

open access: yesThe Astrophysical Journal
In cold molecular clouds, UV photolysis of icy grain mantles generates radicals that lead to new molecule formation. When radical diffusion is limited by low temperatures, oxygen atom addition and insertion reactions, enabled by photolysis of common ice ...
Michelle R. Brann   +2 more
doaj   +1 more source

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