CobaltMaghrebV1, Maroc, Analysis, bibRecord, 000121

Dégradation thermique et étude vibrationnelle de MII(NH4)4(P3O9)2.4H2O (MII=Cu2+, Ni2+, Co2+)

Identifieur interne : 000121 ( Maroc/Analysis ); précédent : 000120; suivant : 000122

Dégradation thermique et étude vibrationnelle de MII(NH4)4(P3O9)2.4H2O (MII=Cu2+, Ni2+, Co2+)

Auteurs : K. Sbai [Maroc] ; A. Abouimrane [Maroc] ; K. El Kababi [Maroc] ; S. Vilminot [France]

Source :

Journal of thermal analysis and calorimetry [ 1388-6150 ] ; 2002.

RBID : Pascal:02-0401662

Descripteurs français

Pascal (Inist)
- Pyrolyse, Cuivre II Complexe, Nickel II Complexe, Cobalt II Complexe, Coordinat minéral, Ammonium, Phosphate cyclique, Hydrate, Analyse thermique, Analyse thermique différentielle, Thermogravimétrie, Spectrométrie IR, Spectrométrie Raman, Diffraction RX.

English descriptors

KwdEn :
- Ammonium, Cobalt II Complexes, Copper II Complexes, Cyclophosphate, Differential thermal analysis, Hydrates, Infrared spectrometry, Inorganic ligand, Nickel II Complexes, Pyrolysis, Raman spectrometry, Thermal analysis, Thermogravimetry, X ray diffraction.

Abstract

We have studied the thermal behaviour under atmospheric pressure of isotypic tetrahydrate cyclotriphosphates M^II(NH₄)₄(P₃O₉)₂.4H₂O (M^II=Cu, Ni and Co), between 25 and 1400°C, by X-ray diffraction, thermal analyses (TG and DTA) and infrared spectrometry. This study shows that the series of the compounds M^II(NH₄)₄(P₃O₉)₂.4H₂O (M^II=Cu, Ni and Co) after elimination of water, in two different stages, and ammonia leads, at 400°C to cyclotetraphosphate M^II₂P₄O₁₂ crystallized and to a thermal residue with a formula H₄P₄O₁₂ which undergoes under a thermal degradation by evolving water and pentoxide phosphorus. The kinetic characteristics of the dehydration and elimination of ammonia have been determinated. The vibrational spectra of Cu(NH₄)₄(P₃O₉)₂.4H₂O were examined and interpreted, in the domain of the valency frequencies, on the basis of the crystalline structure of its isotypic compound Co(NH₄)₄(P₃O₉)₂.4H₂O whose cycle has the site symmetry C₁, of our results of the calculation of the IR frequencies and the successive isotopic substitutions of the equivalent atoms (3P, 30i and 60e belonging to the P₃Oi₃Oe₆ ring) of the P₃O³₉ cycle with high symmetry D_3h.

Affiliations:

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Pascal:02-0401662

Le document en format XML

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(NH<sub>4</sub>
)<sub>4</sub>
(P<sub>3</sub>
O<sub>9</sub>
)<sub>2</sub>
.4H<sub>2</sub>
O (M<sup>II</sup>
=Cu<sup>2+</sup>
, Ni<sup>2+</sup>
, Co<sup>2+</sup>
)</title>
<author><name sortKey="Sbai, K" sort="Sbai, K" uniqKey="Sbai K" first="K." last="Sbai">K. Sbai</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Recherches de Chimie-Physique Générale, Faculté des Sciences Ben M'sik, Université Hassan II-Mohammedia, B.P. 7955</s1>
<s2>Casablanca</s2>
<s3>MAR</s3>
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<author><name sortKey="El Kababi, K" sort="El Kababi, K" uniqKey="El Kababi K" first="K." last="El Kababi">K. El Kababi</name>
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<author><name sortKey="Vilminot, S" sort="Vilminot, S" uniqKey="Vilminot S" first="S." last="Vilminot">S. Vilminot</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="fr" level="a">Dégradation thermique et étude vibrationnelle de M<sup>II</sup>
(NH<sub>4</sub>
)<sub>4</sub>
(P<sub>3</sub>
O<sub>9</sub>
)<sub>2</sub>
.4H<sub>2</sub>
O (M<sup>II</sup>
=Cu<sup>2+</sup>
, Ni<sup>2+</sup>
, Co<sup>2+</sup>
)</title>
<author><name sortKey="Sbai, K" sort="Sbai, K" uniqKey="Sbai K" first="K." last="Sbai">K. Sbai</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Recherches de Chimie-Physique Générale, Faculté des Sciences Ben M'sik, Université Hassan II-Mohammedia, B.P. 7955</s1>
<s2>Casablanca</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>Maroc</country>
<wicri:noRegion>Casablanca</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Abouimrane, A" sort="Abouimrane, A" uniqKey="Abouimrane A" first="A." last="Abouimrane">A. Abouimrane</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Recherches de Chimie-Physique Générale, Faculté des Sciences Ben M'sik, Université Hassan II-Mohammedia, B.P. 7955</s1>
<s2>Casablanca</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>Maroc</country>
<wicri:noRegion>Casablanca</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="El Kababi, K" sort="El Kababi, K" uniqKey="El Kababi K" first="K." last="El Kababi">K. El Kababi</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Recherches de Chimie-Physique Générale, Faculté des Sciences Ben M'sik, Université Hassan II-Mohammedia, B.P. 7955</s1>
<s2>Casablanca</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>Maroc</country>
<wicri:noRegion>Casablanca</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Vilminot, S" sort="Vilminot, S" uniqKey="Vilminot S" first="S." last="Vilminot">S. Vilminot</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Groupe des Matériaux Inorganiques, IPCMS, UMR 7504, 23 rue du Loess</s1>
<s2>67037, Strasbourg</s2>
<s3>FRA</s3>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region">Grand Est</region>
<region type="old region">Alsace (région administrative)</region>
<settlement type="city">Strasbourg</settlement>
</placeName>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Journal of thermal analysis and calorimetry</title>
<title level="j" type="abbreviated">J. therm. anal. calorim.</title>
<idno type="ISSN">1388-6150</idno>
<imprint><date when="2002">2002</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Journal of thermal analysis and calorimetry</title>
<title level="j" type="abbreviated">J. therm. anal. calorim.</title>
<idno type="ISSN">1388-6150</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ammonium</term>
<term>Cobalt II Complexes</term>
<term>Copper II Complexes</term>
<term>Cyclophosphate</term>
<term>Differential thermal analysis</term>
<term>Hydrates</term>
<term>Infrared spectrometry</term>
<term>Inorganic ligand</term>
<term>Nickel II Complexes</term>
<term>Pyrolysis</term>
<term>Raman spectrometry</term>
<term>Thermal analysis</term>
<term>Thermogravimetry</term>
<term>X ray diffraction</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Pyrolyse</term>
<term>Cuivre II Complexe</term>
<term>Nickel II Complexe</term>
<term>Cobalt II Complexe</term>
<term>Coordinat minéral</term>
<term>Ammonium</term>
<term>Phosphate cyclique</term>
<term>Hydrate</term>
<term>Analyse thermique</term>
<term>Analyse thermique différentielle</term>
<term>Thermogravimétrie</term>
<term>Spectrométrie IR</term>
<term>Spectrométrie Raman</term>
<term>Diffraction RX</term>
</keywords>
</textClass>
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</teiHeader>
<front><div type="abstract" xml:lang="en">We have studied the thermal behaviour under atmospheric pressure of isotypic tetrahydrate cyclotriphosphates M<sup>II</sup>
(NH<sub>4</sub>
)<sub>4</sub>
(P<sub>3</sub>
O<sub>9</sub>
)<sub>2</sub>
.4H<sub>2</sub>
O (M<sup>II</sup>
=Cu, Ni and Co), between 25 and 1400°C, by X-ray diffraction, thermal analyses (TG and DTA) and infrared spectrometry. This study shows that the series of the compounds M<sup>II</sup>
(NH<sub>4</sub>
)<sub>4</sub>
(P<sub>3</sub>
O<sub>9</sub>
)<sub>2</sub>
.4H<sub>2</sub>
O (M<sup>II</sup>
=Cu, Ni and Co) after elimination of water, in two different stages, and ammonia leads, at 400°C to cyclotetraphosphate M<sup>II</sup>
<sub>2</sub>
P<sub>4</sub>
O<sub>12</sub>
 crystallized and to a thermal residue with a formula H<sub>4</sub>
P<sub>4</sub>
O<sub>12</sub>
 which undergoes under a thermal degradation by evolving water and pentoxide phosphorus. The kinetic characteristics of the dehydration and elimination of ammonia have been determinated. The vibrational spectra of Cu(NH<sub>4</sub>
)<sub>4</sub>
(P<sub>3</sub>
O<sub>9</sub>
)<sub>2</sub>
.4H<sub>2</sub>
O were examined and interpreted, in the domain of the valency frequencies, on the basis of the crystalline structure of its isotypic compound Co(NH<sub>4</sub>
)<sub>4</sub>
(P<sub>3</sub>
O<sub>9</sub>
)<sub>2</sub>
.4H<sub>2</sub>
O whose cycle has the site symmetry C<sub>1</sub>
, of our results of the calculation of the IR frequencies and the successive isotopic substitutions of the equivalent atoms (3P, 30i and 60e belonging to the P<sub>3</sub>
Oi<sub>3</sub>
Oe<sub>6</sub>
 ring) of the P<sub>3</sub>
O<sup>3</sup>
<sub>9</sub>
 cycle with high symmetry D<sub>3h</sub>
.</div>
</front>
</TEI>
<affiliations><list><country><li>France</li>
<li>Maroc</li>
</country>
<region><li>Alsace (région administrative)</li>
<li>Grand Est</li>
</region>
<settlement><li>Strasbourg</li>
</settlement>
</list>
<tree><country name="Maroc"><noRegion><name sortKey="Sbai, K" sort="Sbai, K" uniqKey="Sbai K" first="K." last="Sbai">K. Sbai</name>
</noRegion>
<name sortKey="Abouimrane, A" sort="Abouimrane, A" uniqKey="Abouimrane A" first="A." last="Abouimrane">A. Abouimrane</name>
<name sortKey="El Kababi, K" sort="El Kababi, K" uniqKey="El Kababi K" first="K." last="El Kababi">K. El Kababi</name>
</country>
<country name="France"><region name="Grand Est"><name sortKey="Vilminot, S" sort="Vilminot, S" uniqKey="Vilminot S" first="S." last="Vilminot">S. Vilminot</name>
</region>
</country>
</tree>
</affiliations>
</record>

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Dégradation thermique et étude vibrationnelle de MII(NH4)4(P3O9)2.4H2O (MII=Cu2+, Ni2+, Co2+)

Dégradation thermique et étude vibrationnelle de MII(NH4)4(P3O9)2.4H2O (MII=Cu2+, Ni2+, Co2+)

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri