K2Fe(CO)4 crystallizes in the orthorhombic Fddd space group. K(1) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. Fe(1) is bonded in a tetrahedral geometry to four equivalent C(1) atoms. C(1) is bonded in a linear geometry to one Fe(1) and one O(1) atom. O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one C(1) atom.
K2Fe(CO)4 crystallizes in the orthorhombic Fddd space group. K(1) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. There are two shorter (2.78 Å) and two longer (2.94 Å) K(1)-O(1) bond lengths. Fe(1) is bonded in a tetrahedral geometry to four equivalent C(1) atoms. All Fe(1)-C(1) bond lengths are 1.73 Å. C(1) is bonded in a linear geometry to one Fe(1) and one O(1) atom. The C(1)-O(1) bond length is 1.20 Å. O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one C(1) atom.