nitro group


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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 ?
With the July 2009 acquisition by Sapient of Nitro Group, Sapient combined the largest independent interactive services firm with an award-winning, brand-led advertising network.
We completed the acquisition of Nitro Group in early July and client reaction has been very favorable," added Herrick.
Nitro Group is a global communications network that spans seven offices around the world.
Sapient Interactive and Nitro Group won Cannes Lions awards across all major categories including public relations, direct marketing, interactive marketing and design.
Together, Sapient and Nitro Group will leverage their combined capabilities in integrated advertising, digital commerce, marketing technology and social media to help clients create brand experiences that drive unparalleled levels of customer loyalty with sustainable and measurable business results.
Peroxide-based explosives are almost impossible to identify, since they do not contain nitro groups and are colorless.
Their analysis confirms theoretical predictions that the addition of nitro groups weakens the carbon-carbon links in the aromatic ring.
T identifies 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.
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.
is an innovative solution for countermeasures against peroxide-based explosives, which are almost impossible to identify since they don't contain nitro groups and are colorless," said Acro Chairman and CEO Gadi Aner.