FACTOID # 16: In the 2000 Presidential Election, Texas gave Ralph Nader the 3rd highest popular vote count of any US state.
 Home   Encyclopedia   Statistics   States A-Z   Flags   Maps   FAQ   About 


FACTS & STATISTICS    Advanced view

Search encyclopedia, statistics and forums:



(* = Graphable)



Encyclopedia > Nitryl

The nitryl group is NO2, a nitrogen atom plus two oxygen atoms. In ecology functional groups are collections of organisms based on morphological, physiological, behavioral, biochemical, or environmental responses or on trophic criteria. ... General Name, Symbol, Number nitrogen, N, 7 Chemical series nonmetals Group, Period, Block 15, 2, p Appearance colorless Atomic mass 14. ... General Name, Symbol, Number oxygen, O, 8 Chemical series nonmetals Group, Period, Block 16, 2, p Appearance colorless Atomic mass 15. ...

It occurs in compounds such as nitryl fluoride, NO2F. Nitryl fluoride, NO2F, is a compound of nitrogen with oxygen and fluorine. ...

As a discrete molecule, it is called nitryl radical, NO2ยท; in fact, this is fairly stable and known as the compound nitrogen dioxide. Radical is derived from the Latin word radix, which means root. In various fields of endeavor, it can mean: Sciences in chemistry, either an atom or molecule with at least one unpaired electron, or a group of atoms, charged or uncharged, that act as a single entity in reaction. ... The chemical compound nitrogen dioxide (NO2) is a red or orange/brown gas with a characteristic sharp, biting odor. ...

With a negative charge, this makes nitrite ion, NO2-; with a positive charge, it makes nitronium ion, NO2+. Definition The nitrite ion is NO2-. A nitrite compound is one that contains this group, either an ionic compound, or an analogous covalent one. ... The nitronium ion is NO2+, a nitrogen atom and two oxygen atoms with a positive charge. ...

  Results from FactBites:
Nitration of Propenylbenzenes with Nitryl Iodide (951 words)
Nitryl iodide (INO2) is a particularly effective general reagent for the synthesis of phenyl-2-nitropropenes from propenylbenzenes.
The nitryl iodide used in this reaction is generated in situ by the reaction of sodium nitrite [1] or silver nitrite [2] with iodine.
The mechanism is a regioselective addition of nitryl iodide across the double bond of the propenylbenzene to form the phenyl-1-iodo-2-nitropropane, which undergoes elimination of HI to give the desired phenyl-2-nitropropenes.
An Improved Method for the Preparation of Nitroalkenes from Alkenes - [www.rhodium.ws] (1135 words)
Nitration of cyclic conjugated olefins was achieved in a one-pot procedure using nitryl iodide generated in situ from iodine and potassium nitrite complexed with 18-crown-6 in tetrahydrofuran under sonication/stirring, followed by treatment of the unstable iodo nitro compound with base.
This method is based on the regioselective addition of nitryl iodide to olefins followed by base induced bimolecular elimination of iodide to form a nitroolefin.
olefin and nitryl iodide; in all cases nitryl iodide was generated in situ with sonication.
  More results at FactBites »



Share your thoughts, questions and commentary here
Your name
Your comments

Want to know more?
Search encyclopedia, statistics and forums:


Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms, 1022, m