Lewis base

Definition

A Lewis base is a substance that can donate a pair of electrons to form a covalent bond. It acts as an electron pair donor in chemical reactions, especially in the formation of coordinate covalent bonds.

Related terms

Electron Pair Donor: A molecule or ion that donates an electron pair to another atom to form a chemical bond.

Coordinate Covalent Bond:

A type of chemical bond where both electrons shared in the bond come from the same atom, typically provided by a Lewis base.

Nucleophile:

A substance that tends to donate electrons or seek positive charge in chemical reactions, similar in behavior to Lewis bases but often discussed in the context of reaction mechanisms