Intermolecular O-H...O and C-H...π(C5H5), and intramolecular C-H...O interactions in 2-(ferrocenyl)thiophene-3-carboxylic acid
Gallagher, John F.ORCID: 0000-0003-4130-4556, Hudson, Richard D.A. and Manning, Anthony R.
(2001)
Intermolecular O-H...O and C-H...π(C5H5), and intramolecular C-H...O interactions in 2-(ferrocenyl)thiophene-3-carboxylic acid.
Acta Crystallographica Section C, 57
(1).
pp. 28-30.
ISSN 0108-2701
The title compound, [Fe(C₅H₅)(C₁₀H₇O₂S)], an important precursor en route to organometallic donor-π-acceptor systems, forms dimers in the solid state through cyclic intermolecular carboxylic acid O-H...O hydrogen bonds, graph set R²₂(8) [O...O 2.661 (2) Å and O-H...O 175°]. Intermolecular Ccp-H...πcp interactions between the unsubstituted cyclopentadienyl (Cp) rings and Cthiazole-H...πcp interactions link neighbouring molecules into a three-dimensional network [C...Cg 3.753 (7) Å and C-H...Cg 156°, and C...Cg 3.687 (3) Å and C-H...Cg 129°; Cg is the ring centroid]. Intramolecular C-H...O interactions are present, graph set S(7) [C...O 2.925 (3) Å and C-H...O 120°, and the closest C-H...Sthienyl contact has a C...S distance of 3.058 (2) Å].