Coordination chemistry of polynitriles. Part 9. Decacyanoferrocene revisited. Crystal and molecular structure of cis-[{C5(CN)5}2(MeCN)4Fe]

The reaction of Ag[C5(CN)5] with anhydrous FeCl2 in acetonitrile leads to colourless crystals of tetrakis(acetonitrile- κ N)bis(pentacyanocyclopentadienido- κ N)iron(II) acetonitrile 1.8-solvate, [Fe(C10N5)2(CH3CN)4] · 1.8CH3CN or cis-[{C5(CN)5}2(MeCN)4Fe] · 1.8MeCN. The compound crystallizes in the triclinic space group P\overline{1} as monomers, which exhibit weak C — H...N and π – π interactions. The crystals contain ca 20% solvent-accessible voids, which are nearly completely filled by two MeCN molecules.

Source: Acta Crystallographica Section C - January 21, 2022 Category: Chemistry Authors: S ü nkel, K. Blockhaus, T. Tags: ferrocene pentacyanocyclopentadienide π – interactions weak interactions decacyanoferrocene crystal structure research papers Source Type: research