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  2. Coordinate covalent bond - Wikipedia

    en.wikipedia.org/wiki/Coordinate_covalent_bond

    This electronic structure has an electric dipole, hence the name polar bond. In reality, the atoms carry partial charges; the more electronegative atom of the two involved in the bond will usually carry a partial negative charge. One exception to this is carbon monoxide. In this case, the carbon atom carries the partial negative charge although ...

  3. Electron pair - Wikipedia

    en.wikipedia.org/wiki/Electron_pair

    MO diagrams depicting covalent (left) and polar covalent (right) bonding in a diatomic molecule. In both cases a bond is created by the formation of an electron pair. Because electrons are fermions, the Pauli exclusion principle forbids these particles from having all the same quantum numbers.

  4. Covalent bond - Wikipedia

    en.wikipedia.org/wiki/Covalent_bond

    A covalent bond forming H 2 (right) where two hydrogen atoms share the two electrons. A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms.

  5. Polar set - Wikipedia

    en.wikipedia.org/wiki/Polar_set

    The real polar of a subset of is the set: := { : ⁡ , } and the real prepolar of a subset of is the set: := { : ⁡ , }.. As with the absolute prepolar, the real prepolar is usually called the real polar and is also denoted by . [2] It's important to note that some authors (e.g. [Schaefer 1999]) define "polar" to mean "real polar" (rather than "absolute polar", as is done in this article) and ...

  6. Non-covalent interaction - Wikipedia

    en.wikipedia.org/wiki/Non-covalent_interaction

    The hydrophobic effect is the desire for non-polar molecules to aggregate in aqueous solutions in order to separate from water. [22] This phenomenon leads to minimum exposed surface area of non-polar molecules to the polar water molecules (typically spherical droplets), and is commonly used in biochemistry to study protein folding and other ...

  7. Covalent radius - Wikipedia

    en.wikipedia.org/wiki/Covalent_radius

    Sanderson has published a recent set of non-polar covalent radii for the main-group elements, [1] but the availability of large collections of bond lengths, which are more transferable, from the Cambridge Crystallographic Database [2] [3] has rendered covalent radii obsolete in many situations.

  8. Trilinear polarity - Wikipedia

    en.wikipedia.org/wiki/Trilinear_polarity

    The trilinear polar of the centroid of triangle ABC is the line at infinity. The trilinear polar of the symmedian point is the Lemoine axis of triangle ABC. The trilinear polar of the orthocenter is the orthic axis. Trilinear polars are not defined for points coinciding with the vertices of triangle ABC.

  9. Bent bond - Wikipedia

    en.wikipedia.org/wiki/Bent_bond

    One of the first bent bond theories for cyclopropane was the Coulson-Moffitt model (1947).. In organic chemistry, a bent bond, also known as a banana bond, is a type of covalent chemical bond with a geometry somewhat reminiscent of a banana.