Jf. Gallagher et al., ACCURATE REDETERMINATIONS OF 1,1'-DIBENZOYLFERROCENE AND (4-NITROPHENYL)-FERROCENE, Acta crystallographica. Section C, Crystal structure communications, 53, 1997, pp. 1772-1775
In the solid state, molecules of 1,1'-dibenzoylferrocene, [Fe(C12H9O)(
2)], (I), are linked to form infinite chains in the [100] direction vi
a (cyclopentadienyl)C-H ... O hydrogen bonds [C ... O 3.354(4) Angstro
m]. In the structure of (4-nitrophenyl)ferrocene, [Fe(C5H5)(C11H8NO2)]
, (II), there are no C-H ... O hydrogen bonds and molecules are separa
ted by normal van der Waals distances.