Synthesis, structure, magnetic susceptibility and Mössbauer and raman spectroscopies of the new oxyphosphate Fe0.50TiO(PO4)
Identifieur interne : 000263 ( PascalFrancis/Checkpoint ); précédent : 000262; suivant : 000264Synthesis, structure, magnetic susceptibility and Mössbauer and raman spectroscopies of the new oxyphosphate Fe0.50TiO(PO4)
Auteurs : S. Benmokhtar [Maroc] ; A. El Jazouli [Maroc] ; J. P. Chaminade [France] ; P. Gravereau [France] ; A. Wattiaux [France] ; L. Fournes [France] ; J. C. Grenier [France] ; D. Waal [Afrique du Sud]Source :
- Journal of solid state chemistry : (Print) [ 0022-4596 ] ; 2006.
Descripteurs français
- Pascal (Inist)
- Structure magnétique, Susceptibilité magnétique, Effet Mössbauer, Spectrométrie Raman, Spectre Raman, Actinide, Fer, Réaction état solide, Echange ion, Diffraction RX, Spectre RX, Spectrométrie Mössbauer, Mesure magnétique, Structure cristalline, Nickel, Titane, Réseau monoclinique, Groupe espace, Alliage ternaire, Chaîne longue, Site cristallographique, Etat spin élevé, Métal transition, 7525, 75, 7680, 78, Méthode Rietveld.
- Wicri :
English descriptors
- KwdEn :
- Actinides, Crystal structure, Crystallographic site, High spin states, Ion exchange, Iron, Long chain, Magnetic measurement, Magnetic structure, Magnetic susceptibility, Moessbauer effect, Moessbauer spectroscopy, Monoclinic lattices, Nickel, Raman spectra, Raman spectroscopy, Rietveld method, Solid state reaction, Space groups, Ternary alloys, Titanium, Transition elements, X-ray spectra, XRD.
Abstract
A new iron titanyl oxyphosphate Fe0.50TiO(PO4) was synthesized by both solid-state reaction and Cu2+-Fe2+ ion exchange method. The material was then characterized by X-ray diffraction, Mössbauer spectroscopy, magnetic susceptibility measurements and Raman spectroscopy. The crystal structure of the compound was refined, using X-ray powder diffraction data, by Rietveld profile method; it crytallizes in the monoclinic system, space group P21/c (No.14), with a = 7.4039(3)A, b = 7.3838(3)Å, c = 7.4083(3)Å, β = 120.36°(1), V = 349.44(2)Å3 and Z = 4. The volume of the title compound is comparable to those of the MoII0.50TiO(PO4) series, where MII = Mg, Co, Ni and Zn. The framework is built up from [TiO6] octahedra and [PO4] tetrahedra. [TiO6] octahedra are linked together by corners and form infinite chains along the c-axis. Ti atoms are displaced from the center of octahedral units showing an alternating short distance (1.73 A) and a long one (2.22 A). These chains are linked together by [PO4] tetrahedra. Fe2+ cations occupy a triangle-based antiprism sharing two faces with two [TiO6] octahedra. Mössbauer and magnetic measurements show the existence of iron only in divalent state, located exclusively in octahedral sites with high spin configuration (t42ge2g). Raman study confirms the existence of Ti-O-Ti chains.
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Actinides</term>
<term>Crystal structure</term>
<term>Crystallographic site</term>
<term>High spin states</term>
<term>Ion exchange</term>
<term>Iron</term>
<term>Long chain</term>
<term>Magnetic measurement</term>
<term>Magnetic structure</term>
<term>Magnetic susceptibility</term>
<term>Moessbauer effect</term>
<term>Moessbauer spectroscopy</term>
<term>Monoclinic lattices</term>
<term>Nickel</term>
<term>Raman spectra</term>
<term>Raman spectroscopy</term>
<term>Rietveld method</term>
<term>Solid state reaction</term>
<term>Space groups</term>
<term>Ternary alloys</term>
<term>Titanium</term>
<term>Transition elements</term>
<term>X-ray spectra</term>
<term>XRD</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Structure magnétique</term>
<term>Susceptibilité magnétique</term>
<term>Effet Mössbauer</term>
<term>Spectrométrie Raman</term>
<term>Spectre Raman</term>
<term>Actinide</term>
<term>Fer</term>
<term>Réaction état solide</term>
<term>Echange ion</term>
<term>Diffraction RX</term>
<term>Spectre RX</term>
<term>Spectrométrie Mössbauer</term>
<term>Mesure magnétique</term>
<term>Structure cristalline</term>
<term>Nickel</term>
<term>Titane</term>
<term>Réseau monoclinique</term>
<term>Groupe espace</term>
<term>Alliage ternaire</term>
<term>Chaîne longue</term>
<term>Site cristallographique</term>
<term>Etat spin élevé</term>
<term>Métal transition</term>
<term>7525</term>
<term>75</term>
<term>7680</term>
<term>78</term>
<term>Méthode Rietveld</term>
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<front><div type="abstract" xml:lang="en">A new iron titanyl oxyphosphate Fe<sub>0.50</sub>
TiO(PO<sub>4</sub>
) was synthesized by both solid-state reaction and Cu<sup>2+</sup>
-Fe<sup>2+</sup>
ion exchange method. The material was then characterized by X-ray diffraction, Mössbauer spectroscopy, magnetic susceptibility measurements and Raman spectroscopy. The crystal structure of the compound was refined, using X-ray powder diffraction data, by Rietveld profile method; it crytallizes in the monoclinic system, space group P2<sub>1</sub>
/c (No.14), with a = 7.4039(3)A, b = 7.3838(3)Å, c = 7.4083(3)Å, β = 120.36°(1), V = 349.44(2)Å<sup>3</sup>
and Z = 4. The volume of the title compound is comparable to those of the Mo<sup>II</sup>
<sub>0.50</sub>
TiO(PO<sub>4</sub>
) series, where M<sup>II</sup>
= Mg, Co, Ni and Zn. The framework is built up from [TiO<sub>6</sub>
] octahedra and [PO<sub>4</sub>
] tetrahedra. [TiO<sub>6</sub>
] octahedra are linked together by corners and form infinite chains along the c-axis. Ti atoms are displaced from the center of octahedral units showing an alternating short distance (1.73 A) and a long one (2.22 A). These chains are linked together by [PO<sub>4</sub>
] tetrahedra. Fe<sup>2+</sup>
cations occupy a triangle-based antiprism sharing two faces with two [TiO<sub>6</sub>
] octahedra. Mössbauer and magnetic measurements show the existence of iron only in divalent state, located exclusively in octahedral sites with high spin configuration (t<sup>4</sup>
<sub>2g</sub>
e<sup>2</sup>
<sub>g</sub>
). Raman study confirms the existence of Ti-O-Ti chains.</div>
</front>
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</fA61>
<fA64 i1="01" i2="1"><s0>Journal of solid state chemistry : (Print)</s0>
</fA64>
<fA66 i1="01"><s0>USA</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>A new iron titanyl oxyphosphate Fe<sub>0.50</sub>
TiO(PO<sub>4</sub>
) was synthesized by both solid-state reaction and Cu<sup>2+</sup>
-Fe<sup>2+</sup>
ion exchange method. The material was then characterized by X-ray diffraction, Mössbauer spectroscopy, magnetic susceptibility measurements and Raman spectroscopy. The crystal structure of the compound was refined, using X-ray powder diffraction data, by Rietveld profile method; it crytallizes in the monoclinic system, space group P2<sub>1</sub>
/c (No.14), with a = 7.4039(3)A, b = 7.3838(3)Å, c = 7.4083(3)Å, β = 120.36°(1), V = 349.44(2)Å<sup>3</sup>
and Z = 4. The volume of the title compound is comparable to those of the Mo<sup>II</sup>
<sub>0.50</sub>
TiO(PO<sub>4</sub>
) series, where M<sup>II</sup>
= Mg, Co, Ni and Zn. The framework is built up from [TiO<sub>6</sub>
] octahedra and [PO<sub>4</sub>
] tetrahedra. [TiO<sub>6</sub>
] octahedra are linked together by corners and form infinite chains along the c-axis. Ti atoms are displaced from the center of octahedral units showing an alternating short distance (1.73 A) and a long one (2.22 A). These chains are linked together by [PO<sub>4</sub>
] tetrahedra. Fe<sup>2+</sup>
cations occupy a triangle-based antiprism sharing two faces with two [TiO<sub>6</sub>
] octahedra. Mössbauer and magnetic measurements show the existence of iron only in divalent state, located exclusively in octahedral sites with high spin configuration (t<sup>4</sup>
<sub>2g</sub>
e<sup>2</sup>
<sub>g</sub>
). Raman study confirms the existence of Ti-O-Ti chains.</s0>
</fC01>
<fC02 i1="01" i2="3"><s0>001B60A66</s0>
</fC02>
<fC02 i1="02" i2="3"><s0>001B70E25</s0>
</fC02>
<fC02 i1="03" i2="3"><s0>001B70F80</s0>
</fC02>
<fC02 i1="04" i2="3"><s0>001B70H</s0>
</fC02>
<fC03 i1="01" i2="3" l="FRE"><s0>Structure magnétique</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="3" l="ENG"><s0>Magnetic structure</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="3" l="FRE"><s0>Susceptibilité magnétique</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="3" l="ENG"><s0>Magnetic susceptibility</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="3" l="FRE"><s0>Effet Mössbauer</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="3" l="ENG"><s0>Moessbauer effect</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="3" l="FRE"><s0>Spectrométrie Raman</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="3" l="ENG"><s0>Raman spectroscopy</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="3" l="FRE"><s0>Spectre Raman</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="3" l="ENG"><s0>Raman spectra</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="3" l="FRE"><s0>Actinide</s0>
<s2>NC</s2>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Actinides</s0>
<s2>NC</s2>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE"><s0>Fer</s0>
<s2>NC</s2>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG"><s0>Iron</s0>
<s2>NC</s2>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Réaction état solide</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Solid state reaction</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Reacción estado sólido</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE"><s0>Echange ion</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG"><s0>Ion exchange</s0>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>Diffraction RX</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="3" l="ENG"><s0>XRD</s0>
<s5>10</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Spectre RX</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>X-ray spectra</s0>
<s5>11</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Spectrométrie Mössbauer</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Moessbauer spectroscopy</s0>
<s5>12</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Mesure magnétique</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Magnetic measurement</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Medida magnética</s0>
<s5>13</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE"><s0>Structure cristalline</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="3" l="ENG"><s0>Crystal structure</s0>
<s5>14</s5>
</fC03>
<fC03 i1="15" i2="3" l="FRE"><s0>Nickel</s0>
<s2>NC</s2>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="3" l="ENG"><s0>Nickel</s0>
<s2>NC</s2>
<s5>15</s5>
</fC03>
<fC03 i1="16" i2="3" l="FRE"><s0>Titane</s0>
<s2>NC</s2>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="3" l="ENG"><s0>Titanium</s0>
<s2>NC</s2>
<s5>16</s5>
</fC03>
<fC03 i1="17" i2="3" l="FRE"><s0>Réseau monoclinique</s0>
<s5>29</s5>
</fC03>
<fC03 i1="17" i2="3" l="ENG"><s0>Monoclinic lattices</s0>
<s5>29</s5>
</fC03>
<fC03 i1="18" i2="3" l="FRE"><s0>Groupe espace</s0>
<s5>30</s5>
</fC03>
<fC03 i1="18" i2="3" l="ENG"><s0>Space groups</s0>
<s5>30</s5>
</fC03>
<fC03 i1="19" i2="3" l="FRE"><s0>Alliage ternaire</s0>
<s5>31</s5>
</fC03>
<fC03 i1="19" i2="3" l="ENG"><s0>Ternary alloys</s0>
<s5>31</s5>
</fC03>
<fC03 i1="20" i2="X" l="FRE"><s0>Chaîne longue</s0>
<s5>32</s5>
</fC03>
<fC03 i1="20" i2="X" l="ENG"><s0>Long chain</s0>
<s5>32</s5>
</fC03>
<fC03 i1="20" i2="X" l="SPA"><s0>Cadena larga</s0>
<s5>32</s5>
</fC03>
<fC03 i1="21" i2="X" l="FRE"><s0>Site cristallographique</s0>
<s5>33</s5>
</fC03>
<fC03 i1="21" i2="X" l="ENG"><s0>Crystallographic site</s0>
<s5>33</s5>
</fC03>
<fC03 i1="21" i2="X" l="SPA"><s0>Sitio cristalográfico</s0>
<s5>33</s5>
</fC03>
<fC03 i1="22" i2="3" l="FRE"><s0>Etat spin élevé</s0>
<s5>34</s5>
</fC03>
<fC03 i1="22" i2="3" l="ENG"><s0>High spin states</s0>
<s5>34</s5>
</fC03>
<fC03 i1="23" i2="3" l="FRE"><s0>Métal transition</s0>
<s5>35</s5>
</fC03>
<fC03 i1="23" i2="3" l="ENG"><s0>Transition elements</s0>
<s5>35</s5>
</fC03>
<fC03 i1="24" i2="3" l="FRE"><s0>7525</s0>
<s4>INC</s4>
<s5>71</s5>
</fC03>
<fC03 i1="25" i2="3" l="FRE"><s0>75</s0>
<s4>INC</s4>
<s5>72</s5>
</fC03>
<fC03 i1="26" i2="3" l="FRE"><s0>7680</s0>
<s4>INC</s4>
<s5>73</s5>
</fC03>
<fC03 i1="27" i2="3" l="FRE"><s0>78</s0>
<s4>INC</s4>
<s5>74</s5>
</fC03>
<fC03 i1="28" i2="3" l="FRE"><s0>Méthode Rietveld</s0>
<s4>CD</s4>
<s5>96</s5>
</fC03>
<fC03 i1="28" i2="3" l="ENG"><s0>Rietveld method</s0>
<s4>CD</s4>
<s5>96</s5>
</fC03>
<fN21><s1>190</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
</pA>
</standard>
</inist>
<affiliations><list><country><li>Afrique du Sud</li>
<li>France</li>
<li>Maroc</li>
</country>
<region><li>Aquitaine</li>
<li>Nouvelle-Aquitaine</li>
</region>
<settlement><li>Pessac</li>
</settlement>
</list>
<tree><country name="Maroc"><noRegion><name sortKey="Benmokhtar, S" sort="Benmokhtar, S" uniqKey="Benmokhtar S" first="S." last="Benmokhtar">S. Benmokhtar</name>
</noRegion>
<name sortKey="El Jazouli, A" sort="El Jazouli, A" uniqKey="El Jazouli A" first="A." last="El Jazouli">A. El Jazouli</name>
</country>
<country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Chaminade, J P" sort="Chaminade, J P" uniqKey="Chaminade J" first="J. P." last="Chaminade">J. P. Chaminade</name>
</region>
<name sortKey="Fournes, L" sort="Fournes, L" uniqKey="Fournes L" first="L." last="Fournes">L. Fournes</name>
<name sortKey="Gravereau, P" sort="Gravereau, P" uniqKey="Gravereau P" first="P." last="Gravereau">P. Gravereau</name>
<name sortKey="Grenier, J C" sort="Grenier, J C" uniqKey="Grenier J" first="J. C." last="Grenier">J. C. Grenier</name>
<name sortKey="Wattiaux, A" sort="Wattiaux, A" uniqKey="Wattiaux A" first="A." last="Wattiaux">A. Wattiaux</name>
</country>
<country name="Afrique du Sud"><noRegion><name sortKey="Waal, D" sort="Waal, D" uniqKey="Waal D" first="D." last="Waal">D. Waal</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>
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