nitro group

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Related to nitro groups: Nitro functional group

nitro group,

in chemistry, functional groupfunctional group,
in organic chemistry, group of atoms within a molecule that is responsible for certain properties of the molecule and reactions in which it takes part. Organic compounds are frequently classified according to the functional group or groups they contain.
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 that consists of a nitrogen atom joined to two oxygen atoms. Compounds that contain a nitro group, e.g., picric acid and trinitrotoluene (TNT), are called nitro compounds; many nitro compounds are unstable and are used as explosives. As a result of the chemical bonding in the nitro group, the nitrogen atom is positively charged and each oxygen atom has a partial negative charge. For this reason the nitro group has a powerful attraction for electrons. Many of the chemical reactions of nitro compounds are due to this electronegativityelectronegativity
, in chemistry, tendency for an atom to attract a pair of electrons that it shares with another atom (see chemical bond). For example, the molecule hydrogen chloride, HCl, consists of a hydrogen atom, H, and a chlorine atom, Cl, sharing a pair of electrons.
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 of the nitro group.
References in periodicals archive ?
The first nitro group introduced into the ring causes an increase in the activation energy for the introduction of the second group.
The innovative pen-like tester is able to identify peroxide-based explosives, such as Triacetone Triperoxide (TATP), which are almost impossible to identify, since they do not contain nitro groups or colors and may appear in a variety of shapes and forms, including liquid.
is an innovative, pen-like tester that can identify peroxide-based explosives, such as Triacetone Triperoxide (TATP), which may appear in a variety of shapes and forms, including liquid explosives Peroxide-based explosives are almost impossible to identify, since they do not contain nitro groups and are colorless.
Peroxide-based explosives are very difficult to identify, since they do not contain nitro groups and are colorless.