Results 121 to 130 of about 302,506 (166)

Complex Organic Interstellar Molecules

Annual Review of Astronomy and Astrophysics, 2009
Of the over 150 different molecular species detected in the interstellar and circumstellar media, approximately 50 contain 6 or more atoms. These molecules, labeled complex by astronomers if not by chemists, all contain the element carbon and so can be called organic. In the interstellar medium, complex molecules are detected in the denser sources only.
Herbst, E., Van Dishoeck, E.
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Dynamic supramolecular complexation by shapeshifting organic molecules

Organic & Biomolecular Chemistry, 2009
The synthesis of bisporphyrin bullvalene 1 enabled explorations of its supramolecular complexation with C(60), revealing a dynamic network of interconverting complexes.
Alexander R, Lippert, Vasken L, Keleshian, Jeffrey W, Bode   +2 more
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Zirconocene Complexes of Unsaturated Organic Molecules: New Vehicles for Organic Synthesis

Science, 1993
Transition metals are known to stabilize high-energy species and to activate otherwise unreactive ones. The zirconocene unit stabilizes highly strained alkynes and alkenes, allowing their use in selective carbon-carbon bond-forming reactions.
R D, Broene, S L, Buchwald
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Current complexity: a tool for assessing the complexity of organic molecules

Organic & Biomolecular Chemistry, 2015
A new complexity index is described, leveraging crowd-sourced knowledge to assess a molecules complexity in the context of current technology.
Jun, Li, Martin D, Eastgate
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Complexation of small organic molecules by Cu+

Chemical Physics Letters, 1997
Abstract The structure and binding energetics have been computed for the complexes of Cu + with water, hydrogen sulfide, ammonia, formaldehyde, formimine, methanol, methanethiol, methylamine, formic acid and formamide, using ab initio and density functional methods.
Sophie Hoyau, Gilles Ohanessian
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Prebiotic Complex Organic Molecules in Space

2019
As of 2017, about 200 complex organic molecules have been detected in interstellar molecular clouds. It was 1969 when the first organic molecule in space, H2CO, was discovered. Since then many organic molecules were discovered by using the NRAO 11 m (upgraded later to 12 m), Nobeyama 45 m, IRAM 30 m, and other highly sensitive radio telescopes as a ...
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