Mechanochemical assembly of hydrogen bonded organic-organometallic solid compounds

Solvent-free reactions with molecular systems have been exploited to prepare hybrid organic-organometallic solids: grinding of the complex [Fe(eta(5)-C5H4COOH)(2)] with solid bases B generates quantitatively the corresponding hydrogen bonded salts [Fe(eta(5)-C5H4COOH)(eta(5)-C5H4COO)][HB] (B = 1,4-diazabicyclo[2.2.2]octane, 1,4-phenylenediamine); gas-solid reactions are also possible with volatile bases.