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Hydrazine is an inorganic compound with the chemical formula N 2 H 4.It is a simple pnictogen hydride, and is a colourless flammable liquid with an ammonia-like odour.Hydrazine is highly hazardous unless handled in solution as, for example, hydrazine hydrate (N 2 H 4 ·xH 2 O).
[1] [2] [3] Introduced by Gilbert N. Lewis in his 1916 article The Atom and the Molecule, a Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. [4] Lewis structures extend the concept of the electron dot diagram by adding lines between atoms to represent shared pairs in a chemical bond.
A traditional route to diimide involves oxidation of hydrazine with hydrogen peroxide or air. [1]N 2 H 4 + H 2 O 2 → N 2 H 2 + 2H 2 O. Alternatively the hydrolysis of diethyl azodicarboxylate or azodicarbonamide affords diimide: [2]
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Molecular models may be created for several reasons – as pedagogic tools for students or those unfamiliar with atomistic structures; as objects to generate or test theories (e.g., the structure of DNA); as analogue computers (e.g., for measuring distances and angles in flexible systems); or as aesthetically pleasing objects on the boundary of ...
HSAB is an acronym for "hard and soft (Lewis) acids and bases".HSAB is widely used in chemistry for explaining the stability of compounds, reaction mechanisms and pathways. It assigns the terms 'hard' or 'soft', and 'acid' or 'base' to chemical species.
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Hydrazine nitrate is an inorganic compound with the chemical formula N 2 H 4 ·HNO 3.It has usage in liquid explosives as an oxidizer.It exists in two crystalline forms, stable α-type and unstable β-type.