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Diazine

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Organic compound (C4H4N2); benzene with two CH groups replaced by N Not to be confused with Diazene or Diazane.

In organic chemistry, diazines are a group of organic compounds having the molecular formula C₄H₄N₂. Each contains a benzene ring in which two of the C-H fragments have been replaced by isolobal nitrogen. There are three structural isomers:

pyridazine (1,2-diazine)
pyrimidine (1,3-diazine)
pyrazine (1,4-diazine)

See also

6-membered rings with one nitrogen atom: pyridines
6-membered rings with three nitrogen atoms: triazines
6-membered rings with four nitrogen atoms: tetrazines
6-membered rings with five nitrogen atoms: pentazines
6-membered rings with six nitrogen atoms: hexazines

References

Lin-Vien, Daimay; Colthup, Norman B.; Fateley, William G.; Grasselli, Jeanette G. (1991-01-01). "Aromatic and Heteroaromatic Rings". The Handbook of Infrared and Raman Characteristic Frequencies of Organic Molecules. Academic Press. pp. 277–306. doi:10.1016/B978-0-08-057116-4.50023-7. ISBN 978-0-12-451160-6.

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