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Title: A new organically templated monodimensional mixed valence (Fe{sup II}/Fe{sup III}) phosphite: (C{sub 4}H{sub 12}N{sub 2})[Fe{sup II}Fe{sup III}(HPO{sub 3}){sub 2}F{sub 3}]

Abstract

The organically templated (C{sub 4}H{sub 12}N{sub 2})[Fe{sup II}Fe{sup III}(HPO{sub 3}){sub 2}F{sub 3}] compound has been synthesized under mild solvothermal conditions. The crystal structure has been determined from X-ray single-crystal diffraction data. The compound crystallizes in the P2{sub 1}/n monoclinic space group, with the unit-cell parameters a = 12.935(1), b = 6.4476(7), c = 15.693(2) A, {beta} = 105.630(9){sup o} and Z = 4. The crystal structure consists of [Fe{sup II}Fe{sup III}(HPO{sub 3}){sub 2}F{sub 3}]{sup 2-} chains formed by a central chain built of [Fe(2)O{sub 4}F{sub 2}] edge-sharing octahedra, and two side chains formed by alternating [Fe(1)O{sub 3}F{sub 3}] octahedra and [HP(1)O{sub 3}] tetrahedra. The piperazinium cations are placed between the chains linked by ionic and hydrogen interactions. The IR and Raman spectra show the existence of two phosphite crystallographically independent. From the diffuse reflectance spectrum the D {sub q} parameter for the iron(II) cations has been calculated (D {sub q} = 820 cm{sup -1}). The Moessbauer spectrum in the paramagnetic state shows the simultaneous presence of Fe{sup 2+} and Fe{sup 3+}. The magnetic measurements indicate the existence of antiferromagnetic interactions.

Authors:
 [1];  [2];  [3];  [3];  [1]
  1. Departamento de Quimica Inorganica, Universidad del Pais Vasco/EHU, Apdo. 644, E-48080 Bilbao (Spain)
  2. Departamento de Quimica Inorganica, Universidad del Pais Vasco/EHU, Apdo. 644, E-48080 Bilbao (Spain). E-mail: joseluis.mesa@ehu.es
  3. Departamento de Mineralogia y Petrologia, Universidad del Pais Vasco/EHU, Apdo. 644, E-48080 Bilbao (Spain)
Publication Date:
OSTI Identifier:
21000608
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 42; Journal Issue: 3; Other Information: DOI: 10.1016/j.materresbull.2006.06.020; PII: S0025-5408(06)00256-X; Copyright (c) 2006 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:
36 MATERIALS SCIENCE; ABSORPTION SPECTROSCOPY; ANTIFERROMAGNETISM; CATIONS; CHEMICAL PREPARATION; INFRARED SPECTRA; IRON IONS; IRON PHOSPHIDES; MAGNETIC PROPERTIES; MATERIALS; MOESSBAUER EFFECT; MONOCLINIC LATTICES; MONOCRYSTALS; OZONE; PARAMAGNETISM; PHOSPHORUS COMPOUNDS; RAMAN SPECTRA; RAMAN SPECTROSCOPY; SPACE GROUPS; X-RAY DIFFRACTION

Citation Formats

Fernandez-Armas, Sergio, Mesa, Jose L., Pizarro, Jose L., Arriortua, Maria I., and Rojo, Teofilo. A new organically templated monodimensional mixed valence (Fe{sup II}/Fe{sup III}) phosphite: (C{sub 4}H{sub 12}N{sub 2})[Fe{sup II}Fe{sup III}(HPO{sub 3}){sub 2}F{sub 3}]. United States: N. p., 2007. Web. doi:10.1016/j.materresbull.2006.06.020.
Fernandez-Armas, Sergio, Mesa, Jose L., Pizarro, Jose L., Arriortua, Maria I., & Rojo, Teofilo. A new organically templated monodimensional mixed valence (Fe{sup II}/Fe{sup III}) phosphite: (C{sub 4}H{sub 12}N{sub 2})[Fe{sup II}Fe{sup III}(HPO{sub 3}){sub 2}F{sub 3}]. United States. doi:10.1016/j.materresbull.2006.06.020.
Fernandez-Armas, Sergio, Mesa, Jose L., Pizarro, Jose L., Arriortua, Maria I., and Rojo, Teofilo. Thu . "A new organically templated monodimensional mixed valence (Fe{sup II}/Fe{sup III}) phosphite: (C{sub 4}H{sub 12}N{sub 2})[Fe{sup II}Fe{sup III}(HPO{sub 3}){sub 2}F{sub 3}]". United States. doi:10.1016/j.materresbull.2006.06.020.
@article{osti_21000608,
title = {A new organically templated monodimensional mixed valence (Fe{sup II}/Fe{sup III}) phosphite: (C{sub 4}H{sub 12}N{sub 2})[Fe{sup II}Fe{sup III}(HPO{sub 3}){sub 2}F{sub 3}]},
author = {Fernandez-Armas, Sergio and Mesa, Jose L. and Pizarro, Jose L. and Arriortua, Maria I. and Rojo, Teofilo},
abstractNote = {The organically templated (C{sub 4}H{sub 12}N{sub 2})[Fe{sup II}Fe{sup III}(HPO{sub 3}){sub 2}F{sub 3}] compound has been synthesized under mild solvothermal conditions. The crystal structure has been determined from X-ray single-crystal diffraction data. The compound crystallizes in the P2{sub 1}/n monoclinic space group, with the unit-cell parameters a = 12.935(1), b = 6.4476(7), c = 15.693(2) A, {beta} = 105.630(9){sup o} and Z = 4. The crystal structure consists of [Fe{sup II}Fe{sup III}(HPO{sub 3}){sub 2}F{sub 3}]{sup 2-} chains formed by a central chain built of [Fe(2)O{sub 4}F{sub 2}] edge-sharing octahedra, and two side chains formed by alternating [Fe(1)O{sub 3}F{sub 3}] octahedra and [HP(1)O{sub 3}] tetrahedra. The piperazinium cations are placed between the chains linked by ionic and hydrogen interactions. The IR and Raman spectra show the existence of two phosphite crystallographically independent. From the diffuse reflectance spectrum the D {sub q} parameter for the iron(II) cations has been calculated (D {sub q} = 820 cm{sup -1}). The Moessbauer spectrum in the paramagnetic state shows the simultaneous presence of Fe{sup 2+} and Fe{sup 3+}. The magnetic measurements indicate the existence of antiferromagnetic interactions.},
doi = {10.1016/j.materresbull.2006.06.020},
journal = {Materials Research Bulletin},
number = 3,
volume = 42,
place = {United States},
year = {Thu Mar 22 00:00:00 EDT 2007},
month = {Thu Mar 22 00:00:00 EDT 2007}
}