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  2. Nitric oxide - Wikipedia

    en.wikipedia.org/wiki/Nitric_oxide

    Nitric oxide (nitrogen oxide or nitrogen monoxide [1]) is a colorless gas with the formula NO.It is one of the principal oxides of nitrogen.Nitric oxide is a free radical: it has an unpaired electron, which is sometimes denoted by a dot in its chemical formula (• N=O or • NO).

  3. Biological functions of nitric oxide - Wikipedia

    en.wikipedia.org/wiki/Biological_functions_of...

    Nitric oxide (nitrogen monoxide) is a molecule and chemical compound with chemical formula of N O. In mammals including humans, nitric oxide is a signaling molecule involved in several physiological and pathological processes. [1] It is a powerful vasodilator with a half-life of a few seconds in the blood.

  4. Nitrogen oxide - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_oxide

    In atmospheric chemistry: NOx (or NO x) refers to the sum of NO and NO2. [1][2] NOy (or NO y) refers to the sum of NOx and all oxidized atmospheric odd-nitrogen species (e.g. the sum of NOx, HNO3, HNO2, etc.) NOz (or NO z) = NOy − NOx. Mixed Oxides of Nitrogen ("MON"): solutions of nitric oxide in dinitrogen tetroxide/nitrogen dioxide.

  5. HOMO and LUMO - Wikipedia

    en.wikipedia.org/wiki/HOMO_and_LUMO

    Diagram of the HOMO and LUMO of a molecule. Each circle represents an electron in an orbital; when light of a high enough frequency is absorbed by an electron in the HOMO, it jumps to the LUMO. 3D model of the highest occupied molecular orbital in CO 2 3D model of the lowest unoccupied molecular orbital in CO 2

  6. Unpaired electron - Wikipedia

    en.wikipedia.org/wiki/Unpaired_electron

    Unpaired electron. Periodic table with elements that have unpaired electrons coloured. In chemistry, an unpaired electron is an electron that occupies an orbital of an atom singly, rather than as part of an electron pair. Each atomic orbital of an atom (specified by the three quantum numbers n, l and m) has a capacity to contain two electrons ...

  7. Mixed oxides of nitrogen - Wikipedia

    en.wikipedia.org/wiki/Mixed_oxides_of_nitrogen

    Mixed oxides of nitrogen. Mixed oxides of nitrogen (MON) are solutions of nitric oxide (NO) in dinitrogen tetroxide / nitrogen dioxide (N 2 O 4 and NO 2). It may be used as an oxidizing agent in rocket propulsion systems. [1] A broad range of compositions is available, and can be denoted as MON i, where i represents the percentage of nitric ...

  8. Pi backbonding - Wikipedia

    en.wikipedia.org/wiki/Pi_backbonding

    Pi backbonding. In chemistry, π backbonding is a π-bonding interaction between a filled (or half filled) orbital of a transition metal atom and a vacant orbital on an adjacent ion or molecule. [1][2] In this type of interaction, electrons from the metal are used to bond to the ligand, which dissipates excess negative charge and stabilizes the ...

  9. NOx - Wikipedia

    en.wikipedia.org/wiki/NOx

    NOx is a precursor for smog formation which is already a known issue for the state of California. In addition to contributing to smog, when nitrogen fertilizer is added to the soil and the excess is released in the form of NO, or leached as nitrate this can be a costly process for the farming industry.