= Four-center two-electron bond
{wiki=Four-center_two-electron_bond}
A four-center two-electron bond is a type of bonding interaction that occurs in certain molecules where a pair of electrons is shared between four atomic centers, rather than the more common two-center two-electron bond found in typical covalent bonds. This concept is particularly relevant in the context of certain types of metal complexes, cluster compounds, and some main-group and transition-metal compounds.
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