Ferrocenecarboxylic anhydride: identification of a new polymorph

Abstract : A new monoclinic polymorph of ferrocenecarboxylic anhydride, [Fe2(C5H5)2(C12H8O3)], was obtained. Three molecules are present in the asymmetric unit, two of them being nearly identical (r.m.s. deviation = 0.11 Å), with the Fe atoms on the same side of the anhydride functional group. In the third molecule, the two Fe atoms are located at opposite sides of the functional group (ferrocene-ferrocene pseudo-torsion angle = 146.2°), a very unsual feature in metallocene anhydrides. A network of weak intermolecular hydrogen bonds was also disclosed.
Type de document :
Article dans une revue
Acta Crystallographica Section C Structural Chemistry, International Union of Crystallography, 2017, 73, pp.760-766. 〈10.1107/S205322961701124X〉
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01617956
Contributeur : Laurent Jonchère <>
Soumis le : mardi 17 octobre 2017 - 11:49:48
Dernière modification le : samedi 24 mars 2018 - 01:57:04

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Mehdi Tazi, Thierry Roisnel, Florence Mongin, William Erb. Ferrocenecarboxylic anhydride: identification of a new polymorph. Acta Crystallographica Section C Structural Chemistry, International Union of Crystallography, 2017, 73, pp.760-766. 〈10.1107/S205322961701124X〉. 〈hal-01617956〉

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