Abstract
The title compound, [Mn(C7H7)(C6H5O2)]PF6 or [(Cht)Mn(Cp'CO2H)]PF6, with Cht = cycloheptatrienyl and Cp' = C5H4, is an air-stable, purple, heteroleptic, cationic sandwich complex with manganese in oxidation state +I and π-coordinating cycloheptatrienyl and cyclopentadienyl ligands. The latter ligand carries the carboxylic acid functionality. This `tromancenium-8-carboxylic acid' with hexafluoridophosphate as counter-ion represents a rare case of a cationic carboxylic acid. Structurally, this organometallic carboxylic acid displays the common motif of planar Osp
2...H—Osp
3/Osp
3—H...Osp
2 hydrogen-bonded carboxylic acid dimers with anti-oriented metallocenyl moieties, the cationic charge of which is balanced by octahedrally shaped hexafluoridophosphate anions. Positional disorder is observed in the cycloheptatrienyl ring and the PF6
− anion.
Funder
Austrian Science Fund FWF
Publisher
International Union of Crystallography (IUCr)
Subject
Organic Chemistry,Inorganic Chemistry,Analytical Chemistry
Cited by
1 articles.
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