1-(Ferrocen-1-ylmeth­yl)-3-methyl­imidazol-3-ium iodide

The structure of the title compound, [Fe(C₅H₅)(C₁₀H₁₂N₂)]I, consists of a 1-(ferrocen-1-ylmeth­yl)-3-methyl­imidazolium cation which is counter-balanced by an iodide anion. The cyclo­penta­dienyl (Cp) rings of the ferrocene unit have a slightly staggered conformation skewed from an ideal eclipsed conformation by an angle of 3.5 (6)°. The inter­planar angle between the Cp and the imidazole ring is 67.94 (2)°.

(4-{[(Pyridin-4-yl)methyl­idene]amino}­phen­yl)ferrocene

The asymetric unit of the title compound, [Fe(C₅H₅)(C₁₇H₁₃N₂)], contains two independent mol­ecules whose conformations differ, especially in the 4-{(pyridin-4-yl)methyl­idene]amino}­phenyl unit where one is flipped by almost 180°. The cyclo­penta­dienyl rings of the ferrocene unit also exhibit different staggered conformations: in one mol­ecule the conformation is staggered by 9.43 (2)° and in the other by 24.46 (1)° from an ideal eclipsed geometry. The plane of the benzene ring is tilted away from the ferrocene group in both mol­ecules, with dihedral angles of 6.97 (1) and 10.30 (2)°. The benzene ring is also slightly twisted from the plane of the pyridine ring, with dihedral angles of 5.98 (2) and 6.51 (2)° in the two mol­ecules.