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  2. Azanide - Wikipedia

    en.wikipedia.org/wiki/Azanide

    Azanide is the IUPAC-sanctioned name for the anion NH − 2. The term is obscure; derivatives of NH − 2 are almost invariably referred to as amides, [1] [2] [3] despite the fact that amide also refers to the organic functional group – C(=O)−NR 2. The anion NH − 2 is the conjugate base of ammonia, so it is formed by the self-ionization ...

  3. Lewis structure - Wikipedia

    en.wikipedia.org/wiki/Lewis_structure

    Lewis structures – also called Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs) – are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule. [1] [2] [3] Introduced by Gilbert N. Lewis in his 1916 article The ...

  4. Imidogen - Wikipedia

    en.wikipedia.org/wiki/Imidogen

    The systematic names, λ 1-azane and hydridonitrogen, valid IUPAC names, are constructed according to the substitutive and additive nomenclatures, respectively. In appropriate contexts, imidogen can be viewed as ammonia with two hydrogen atoms removed, and as such, azylidene may be used as a context-specific systematic name, according to ...

  5. Molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Molecular_geometry

    Molecular geometry is the three-dimensional arrangement of the atoms that constitute a molecule. It includes the general shape of the molecule as well as bond lengths, bond angles, torsional angles and any other geometrical parameters that determine the position of each atom. Molecular geometry influences several properties of a substance ...

  6. NH2 - Wikipedia

    en.wikipedia.org/wiki/NH2

    NH2 or similar may refer to: Azanide (chemical formula NH − 2) Amino radical (chemical formula NH • 2) Nitrenium ion (chemical formula NH + 2) Primary amide group (chemical formula -NH 2) National Harbor–Alexandria Line (Route NH2), a WMATA bus line between Alexandria, Virginia and Prince George's County, Maryland; National Highway 2 (India)

  7. Propylamine - Wikipedia

    en.wikipedia.org/wiki/Propylamine

    Names Preferred IUPAC name. ... 59.112 g·mol −1 Appearance Colorless liquid Odor: ... is an amine with the chemical formula CH 3 (CH 2) 2 NH 2. [1]

  8. Ammonia borane - Wikipedia

    en.wikipedia.org/wiki/Ammonia_borane

    The molecule adopts a structure similar to that of ethane, with which it is isoelectronic. The B−N distance is 1.58(2) Å. The B−H and N−H distances are 1.15 and 0.96 Å, respectively. Its similarity to ethane is tenuous since ammonia borane is a solid and ethane is a gas: their melting points differing by 284 °C.

  9. Lone pair - Wikipedia

    en.wikipedia.org/wiki/Lone_pair

    Lone pairs (shown as pairs of dots) in the Lewis structure of hydroxide. In chemistry, a lone pair refers to a pair of valence electrons that are not shared with another atom in a covalent bond [1] and is sometimes called an unshared pair or non-bonding pair. Lone pairs are found in the outermost electron shell of atoms.