Hyponitrite
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Preferred IUPAC name
Hyponitrite
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Systematic IUPAC name
Oxidoazanylidene
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3D model (Jmol)
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| Abbreviations | NO((2.)-) |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preferred IUPAC name
Hyponitrite
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Systematic IUPAC name
Diazenebis(olate)
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| Other names
Hyponitrite(2-)
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3D model (Jmol)
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| 3DMet | B00354 |
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| 130273 | |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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In chemistry, hyponitrite may refer to the anion N
2O2−
2 or [ON=NO]2−, or to any ionic compound that contains it. In organic chemistry, it may also refer to the group -O-N=N-O-, or any organic compound with the generic formula R1-O-N=N-O-R2, where R1 and R2 are organic groups. Such compounds can be viewed as salts and esters, respectively, of hyponitrous acid H
2N
2O
2 or HON=NOH.
An acid hyponitrite is an ionic compound with the anion HN
2O−
2 or [HON=NO]−
There are cis and trans forms of the hyponitrite ion.
The trans form is generally found in hyponitrite salts such as sodium hyponitrite, Na
2N
2O
2 and silver(I) hyponitrite, Ag
2N
2O
2.
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