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A curved arrow showing where a pair of electrons moves.
Also known as: Electron pushing arrow, Fishhook arrow
A curved arrow in a reaction mechanism shows electrons moving, always from where they are to where they go. A full arrowhead means a pair moves and a half arrowhead means a single electron does, and the arrow never shows an atom moving.
Shows the movement of electrons in a reaction mechanism, drawn from the source of the electrons to their destination.
Contexts: Laboratory
Distinguishes a pair of electrons, drawn with a full arrowhead, from a single electron, drawn with a half arrowhead.
Contexts: Laboratory
Never represents an atom or a group moving, which is the commonest misreading and produces mechanisms that cannot happen.
Contexts: Laboratory
A curved line ending in a full or half arrowhead, drawn from a bond or a lone pair towards an atom.