Add time:07/30/2019         Source:sciencedirect.com

The crystal structure of (hydrogen ethylenediaminetetraacetato)-aquoferrate(III) has been determined using three dimensional x-ray diffraction data. There are four molecules in the monoclinic unit cell, spacegroup P21/c with dimensions, a = 8.36, b = 8.94, c = 17.83 Å, β = 99.5°. In the structure, the ethylenediaminetetraaceticacid group wraps itself around the iron atom as a pentadentate ligand, leaving one uncomplexed carboxylic acid. A water molecule completes the octahedral co-ordination sphere currounding the metal, (FeN, 2.22; FeO, 1.98; FeH2O, 2.07 Å). The crystal structure of isomorphous (hydrogen ethylenediaminetetraacetato)-aquogallate(III) has also been refined (a = 8.35, b = 8.84, c = 17.56 Å, β = 99.9°, P21/c Z = 4, GaN, 2.14; GaO, 1.95; GaH2O, 1.95 Å).

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