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  2. Eclipsed conformation - Wikipedia

    en.wikipedia.org/wiki/Eclipsed_conformation

    In chemistry an eclipsed conformation is a conformation in which two substituents X and Y on adjacent atoms A, B are in closest proximity, implying that the torsion angle X–A–B–Y is 0°. [1] Such a conformation can exist in any open chain, single chemical bond connecting two sp 3 - hybridised atoms, and it is normally a conformational ...

  3. Rotamer - Wikipedia

    en.wikipedia.org/wiki/Rotamer

    The staggered conformation is more stable by 12.5 kJ/mol than the eclipsed conformation, which is the energy maximum for ethane. In the eclipsed conformation the torsional angle is minimised. staggered conformation left, eclipsed conformation right in Newman projection

  4. Strain (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Strain_(chemistry)

    Torsional strain occurs when atoms separated by three bonds are placed in an eclipsed conformation instead of the more stable staggered conformation. The barrier of rotation between staggered conformations of ethane is approximately 2.9 kcal mol −1. [1]

  5. Newman projection - Wikipedia

    en.wikipedia.org/wiki/Newman_projection

    The diagram takes staggered and eclipsed conformations, as well as gauche and anti interactions into account. A staggered projection appears to have the surrounding species equidistant from each other. This kind of conformation tends to experience both anti and gauche interactions. [5]

  6. File:Ethane conformations and relative energies.svg - Wikipedia

    en.wikipedia.org/wiki/File:Ethane_conformations...

    B: eclipsed Valleys of the pink graph are conformations lowest in energy (shown as A). Peaks are conformations highest in energy (shown as B). B is highest & A lowest in energy. A is thus the most stable conformation. Valleys are local energy minima. A can thus be classified as a rotamer (a class of conformers).

  7. Staggered conformation - Wikipedia

    en.wikipedia.org/wiki/Staggered_conformation

    Staggered conformation image right in Newman projection Eclipsed conformation. In organic chemistry, a staggered conformation is a chemical conformation of an ethane-like moiety abcX–Ydef in which the substituents a, b, and c are at the maximum distance from d, e, and f; this requires the torsion angles to be 60°. [1]

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  9. Ethane - Wikipedia

    en.wikipedia.org/wiki/Ethane

    Ethane (US: / ˈ ɛ θ eɪ n / ETH-ayn, UK: / ˈ iː θ eɪ n / EE-thayn) is a naturally occurring organic chemical compound with chemical formula C 2 H 6. At standard temperature and pressure, ethane is a colorless, odorless gas. Like many hydrocarbons, ethane is isolated on an industrial scale from natural gas and as a petrochemical by ...