Two atoms can be bonded by sharing more than one pair of electrons. The common bonds to carbon are single, double and triple bonds. Single bonds are most common and are represented by a single, solid line between two atoms in a skeletal formula. Double bonds are denoted by two parallel lines, and triple bonds are shown by three parallel lines.
In more advanced theories of bonding, non-integer values of bond order exist. In these cases, a combination of solid and dashed lines indicate the integer and non-integer parts of the bond order, respectively.
Read more about this topic: Skeletal Formula
Other articles related to "bond, multiple bonds, bonds":
... substituents that lower significantly the LUMO of the π-bond ... Possible enophiles contain carbon-carbon multiple bonds (olefins, acetylenes, benzynes), carbon-hetero multiple bonds (C=O in the case of carbonyl-ene ...
... In Lewis formulas, covalent bonds are represented in accordance with the valence bond theory ... Each single bond is made by two valence electrons, localized between the two bonded atoms ... Each double bond has two additional localized π electrons, while each triple bond has four additional π electrons (two pairs) between the bonded atoms ...
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