Exemples d'utilisation de Oxygen atom en Anglais et leurs traductions en Français
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Isolated from others, the water molecule appears as a symmetrical V-shaped atomic formation whose apex is occupied by the oxygen atom.
they form a regular tetrahedron centered on the oxygen atom.
Water, the first chemical compound in this series, contains one oxygen atom and two hydrogen atoms,
if two halogen atoms replace one oxygen atom, or vice versa,
Ozone's effects come when this“extra” oxygen atom is released
the atomic number of a carbon atom is 6, that of an oxygen atom 8, an atom iron 26,
known as imino ethers, since they resemble imines(>C=N-) with an oxygen atom connected to the carbon atom. .
connected to an oxygen atom(atomic number 8),
It is structurally similar to urea, except that the oxygen atom is replaced by a sulfur atom,
Nucleophiles tend to attack at the aziridine nitrogen when the nitrogen substituent is small(R1= H), and at the oxygen atom when the nitrogen substituent has greater steric bulk.
means that an oxygen atom in the compound has been replaced by a sulfur atom. .
PCDDs and PCDFs are tricyclic halogenated aromatic hydrocarbons consisting of two benzene rings connected by two oxygen atoms at adjacent carbons on each of the benzene rings in PCDDs and by one oxygen atom and one carbon-carbon bond at adjacent carbons in PCDFs.
This twist reaction is a rearrangement in which the oxygen atom is moved into a proper plane for a 5 membered cyclic transition state in the elimination reaction and is calculated by
This does not come from different dynamical behaviour due to the presence of the oxygen atom on the octyloxy chain,
The molecule's eight valence electrons(two from hydrogen atoms and six from the oxygen atom) are distributed around the oxygen nucleus into four electron pairs, two of which are involved in oxygen-hydrogen linkages, while the other two are on nonbonding molecular orbitals.
are typically prepared by condensation of a thiol and nitrous acid: RSH+ HONO→ RSNO+ H2O O-Nitroso compounds are similar to S-nitroso compounds, but are less reactive because the oxygen atom is less nucleophilic than the sulfur atom. .
Removal: if an oxygen atom and an ozone molecule meet, they recombine to form two oxygen molecules:
by the carbon atom(main element composing the living cell) and the oxygen atom main element for water.
into two oxygen atoms(see figure): O2+ ℎν→ 2 O• Each oxygen atom then quickly combines with an oxygen molecule to form an ozone molecule: O•+ O2→ O3 The ozone-oxygen cycle:
Overall, it's a device that splits oxygen atoms into fluids.