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Title: Hydrothermal synthesis and characterization of a new iron phosphate structure of ladder-like chains and coordination directly by an organo-nitrogen ligand: [Fe(phen)(HPO{sub 4})(H{sub 2}PO{sub 4}).0.5H{sub 2}O] (phen=1,10-phenanthroline)

A coordination iron phosphate, Fe(phen)(HPO{sub 4})(H{sub 2}PO{sub 4}).0.5H{sub 2}O (I), has been hydrothermally synthesized and characterized by elemental analysis, IR spectral analysis, thermogravimetric analysis, and single-crystal X-ray diffraction. The title compound crystallizes in the monoclinic system, space group C2/m (No. 12), with cell parameters M=438.03, a=21.421(5)A, b=6.4292(1)A, c=12.190(3)A, {beta}=105.964(9){sup o}, V=1614.1(6)A{sup 3}, Z=4, R1[I>2{sigma}(I)]=0.0545, wR2[I>2{sigma}(I)]=0.1186. This compound displays a new structure of ladder-like chains, in which each one-dimensional chain is constituted by the distorted octahedral units of Fe{sup 3+} bridged through PO{sub 4} tetrahedron. The phen ligands in the compound bind in a bidentate fashion to the metal atoms and the ladder-like structure of the compound extends into a three-dimensional supramolecular array via {pi}-{pi} stacking interactions of phen ligands. Mossbauer spectroscopy shows the presence of Fe{sup 3+} in the octahedral coordination. Magnetic susceptibility measurement studies show that this material may model as anti-ferromagnetic.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2]
  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Number 10, Changchun 130012 (China)
  2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Number 10, Changchun 130012 (China). E-mail: wqpang@mail.jlu.edu.cn
Publication Date:
OSTI Identifier:
20655412
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 177; Journal Issue: 12; Other Information: DOI: 10.1016/j.jssc.2004.09.010; PII: S0022-4596(04)00505-5; Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; HYDROTHERMAL SYNTHESIS; IRON COMPLEXES; IRON IONS; IRON PHOSPHATES; LIGANDS; MAGNETIC SUSCEPTIBILITY; MOESSBAUER EFFECT; MONOCLINIC LATTICES; MONOCRYSTALS; SPACE GROUPS; THERMAL GRAVIMETRIC ANALYSIS; X-RAY DIFFRACTION