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Crystal Structure of the Dietary Supplement Ferrous Glycine Sulfate
Author(s) -
Dinnebier Robert E.,
Runčevski Tomče,
Hinrichsen Bernd
Publication year - 2016
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201500776
Subject(s) - isostructural , monoclinic crystal system , crystallography , crystal structure , sulfate , ferrous , rietveld refinement , octahedron , chemistry , powder diffraction , manganese , hydrogen bond , iron sulfate , crystal (programming language) , materials science , inorganic chemistry , molecule , organic chemistry , computer science , programming language
The crystal structure of ferrous glycine sulfate (a ferroglycine sulfate complex with chemical formula FeSO 4 (C 2 H 5 NO 2 ), a compound extensively used as an iron dietary supplement, was refined from synchrotron X‐ray powder diffraction data. The crystal structure of an (so‐far unreported) isostructural manganese analogue was also structurally detailed by a Rietveld refinement against the corresponding X‐ray powder diffraction pattern. All studied compounds crystallize in the monoclinic P 2 1 space group, building layers of metal cations coordinated by the oxygen atoms of sulfate groups and glycine ligands. Neighboring layers are parallel packed, bonded by hydrogen bonds. The coordination polyhedra around the cations can be regarded as distorted and elongated octahedral, presumably due to severe strains present in the crystal structure of the layers.