Ferrocene structure

A molecular structure of ferrocene, with five carbon atoms in a pentagon above and below an iron (depicted as a red circle with a + sign in it).

The molecular structure of ferrocene, with iron (red), carbon (grey) and hydrogen (white) atoms shown. In this structure, iron formally has 18 electrons in its outermost shell (5 from each ring and 8 from the iron atom, in a neutral counting method).

Date:
21 May 2026
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