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  2. Lewis structure - Wikipedia

    en.wikipedia.org/wiki/Lewis_structure

    Lewis structure of a water molecule. 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.

  3. Protonated hydrogen cyanide - Wikipedia

    en.wikipedia.org/wiki/Protonated_hydrogen_cyanide

    Since the initial detection, HCNH + has also been observed in TMC-1 [15] [16] as well as DR 21(OH) [15]. [17] The initial detection toward Sgr B2 has also been confirmed. [15] [18] All 3 of these sources are dense molecular clouds, and to date HCNH + has not been detected in diffuse interstellar material.

  4. Hydrogen cyanide - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_cyanide

    Hydrogen cyanide (formerly known as prussic acid) is a chemical compound with the formula HCN and structural formula H−C≡N.It is a highly toxic and flammable liquid that boils slightly above room temperature, at 25.6 °C (78.1 °F).

  5. Thiocyanic acid - Wikipedia

    en.wikipedia.org/wiki/Thiocyanic_acid

    The esters of thiocyanic acid have the general structure R−S−C≡N, where R stands for an organyl group. Isothiocyanic acid, HNCS, is a Lewis acid whose free energy, enthalpy and entropy changes for its 1:1 association with a variety of Lewis bases in carbon tetrachloride solution at 25 °C have been reported.

  6. HCN channel - Wikipedia

    en.wikipedia.org/wiki/HCN_channel

    HCN4 is the main isoform expressed in the sinoatrial node, but low levels of HCN1 and HCN2 have also been reported.The current through HCN channels, called the pacemaker current (I f), plays a key role in the generation and modulation of cardiac rhythmicity, [13] as they are responsible for the spontaneous depolarization in pacemaker action potentials in the heart.

  7. Brønsted–Lowry acid–base theory - Wikipedia

    en.wikipedia.org/wiki/Brønsted–Lowry_acid...

    [14] [15] Lewis's proposal explains the Brønsted–Lowry classification using electronic structure. HA + B ↽ − − ⇀ A − + BH + {\displaystyle {\ce {HA + B <=> A- + BH+}}} In this representation both the base, B, and the conjugate base, A − , are shown carrying a lone pair of electrons and the proton, which is a Lewis acid, is ...

  8. Gilbert N. Lewis - Wikipedia

    en.wikipedia.org/wiki/Gilbert_N._Lewis

    Media related to Gilbert Newton Lewis at Wikimedia Commons; Key Participants: G. N. Lewis - Linus Pauling and the Nature of the Chemical Bond: A Documentary History; Eric Scerri, The Periodic Table, Its Story and Its Significance, Oxford University Press, 2007, see chapter 8 especially; National Academy of Sciences Biographical Memoir

  9. Hydrogen isocyanide - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_isocyanide

    Hydrogen isocyanide (HNC) is a linear triatomic molecule with C ∞v point group symmetry.It is a zwitterion and an isomer of hydrogen cyanide (HCN). [2] Both HNC and HCN have large, similar dipole moments, with μ HNC = 3.05 Debye and μ HCN = 2.98 Debye respectively. [3]