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Updated: Jun 1, 2026

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyl(tropone)iron
Published on: August 12, 2019
4-(4-Pyrid-yl)pyridinium bis-(pyridine-2,6-dicarboxyl-ato)ferrate(III) tetra-hydrate
Abstract:
In the title compound, (C(10)H(9)N(2))[Fe(C(7)H(3)NO(4))(2)]·4H(2)O or (bpyH)[Fe(pydc)(2)]·4H(2)O, the asymmetric unit contains an [Fe(pydc)(2)](-) (pydcH(2)= pyridine-2,6-dicarboxylic acid) anion, a protonated 4,4'-bipyridine as a counter-ion, (bpyH)(+), and four uncoordinated water mol-ecules. The anion is a six-coordinate complex with a distorted octa-hedral geometry around the Fe(III )atom. A wide range of non-covalent inter-actions, i.e. O-H⋯O, O-H⋯N and N-H⋯O hydrogen bonds, ion pairing, C-O⋯π [3.431 (2) Å] and C-H⋯π stacking inter-actions result in the formation of a three-dimensional network structure.
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