View source for Coordinate bond

Coordinate bond aka dative bond. A bond where [[lone pair]] of electrons sticks into an empty orbital of an electron deficient atom in a molecule. <br>
Prime example is Nitrogen forming a coordinate bond with boron. 

This is in contrast to simple [[covalent bond]]s where electrons are shared symmetrically. <br>
Two electrons one from each atom pair up. Electron spins must align antiparallel.

Electron deficiency can lead to more complex things like <br>
two electron three center bonds.

== External Links ==

* [https://en.wikipedia.org/wiki/Coordinate_covalent_bond Coordinate covalent bond]
* [https://en.wikipedia.org/wiki/Coordination_polymer Coordination polymer]
* [https://en.wikipedia.org/wiki/Metal%E2%80%93organic_framework Metal–organic framework]