Serveur d'exploration sur le cobalt au Maghreb

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Preparation and structure of a series of cyclohexaphosphates : M(p-CH3C6H4NH3)4P6O18.8H2O (M = Cd, Co, Zn, and Cu)

Identifieur interne : 000306 ( France/Analysis ); précédent : 000305; suivant : 000307

Preparation and structure of a series of cyclohexaphosphates : M(p-CH3C6H4NH3)4P6O18.8H2O (M = Cd, Co, Zn, and Cu)

Auteurs : S. Abid [Tunisie] ; M. Rzaigui [Tunisie] ; M. Bagieu-Beucher [France]

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RBID : Pascal:01-0328109

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Abstract

Four new cyclohexaphosphates with the general formula M(p-CH3C6H4NH3)4P6O18.8H2O (M: Cd, Co, Zn, and Cu) are reported. They crystallize with triclinic unit cells and are isotopic. As an example, we give the parameters of Cd(p-CH3C6H4NH3)4P6O18.8H2O: a = 13.834(2), b = 9.974(2), c = 9.134(1) Å, α = 108.12(1), β=91.93(1), γ = 93.45(1)°, Z = 1, P========Imacr;, V = 1193.9(6) Å3, and Dx = 1.618 g.cm-3. The crystal structure was determined using 5214 independent reflections with a final R = 0.027. The atomic arrangement can be described as layers built up by P6O186- ring anions, Cd cations, and water molecules, parallel to the (100) planes. Organic cations are located between these layers.


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Pascal:01-0328109

Le document en format XML

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<title xml:lang="en" level="a">Preparation and structure of a series of cyclohexaphosphates : M(p-CH
<sub>3</sub>
C
<sub>6</sub>
H
<sub>4</sub>
NH
<sub>3</sub>
)
<sub>4</sub>
P
<sub>6</sub>
O
<sub>18</sub>
.8H
<sub>2</sub>
O (M = Cd, Co, Zn, and Cu)</title>
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C
<sub>6</sub>
H
<sub>4</sub>
NH
<sub>3</sub>
)
<sub>4</sub>
P
<sub>6</sub>
O
<sub>18</sub>
.8H
<sub>2</sub>
O (M = Cd, Co, Zn, and Cu)</title>
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<sZ>2 aut.</sZ>
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<term>Benzenic compound</term>
<term>Cadmium phosphates</term>
<term>Chemical preparation</term>
<term>Cobalt phosphates</term>
<term>Copper phosphates</term>
<term>Crystal structure</term>
<term>Experimental study</term>
<term>Infrared spectra</term>
<term>Organic cation</term>
<term>TGA</term>
<term>XRD</term>
<term>Zinc phosphates</term>
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<term>Etude expérimentale</term>
<term>Préparation chimique</term>
<term>Diffraction RX</term>
<term>Structure cristalline</term>
<term>Cadmium phosphate</term>
<term>Cobalt phosphate</term>
<term>Zinc phosphate</term>
<term>Cuivre phosphate</term>
<term>Cation organique</term>
<term>Composé benzénique</term>
<term>Spectre IR</term>
<term>TGA</term>
<term>6166F</term>
<term>6166H</term>
<term>Ammonium(p-tolyl)</term>
<term>Cyclohexaphosphate</term>
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<front>
<div type="abstract" xml:lang="en">Four new cyclohexaphosphates with the general formula M(p-CH
<sub>3</sub>
C
<sub>6</sub>
H
<sub>4</sub>
NH
<sub>3</sub>
)
<sub>4</sub>
P
<sub>6</sub>
O
<sub>18</sub>
.8H
<sub>2</sub>
O (M: Cd, Co, Zn, and Cu) are reported. They crystallize with triclinic unit cells and are isotopic. As an example, we give the parameters of Cd(p-CH
<sub>3</sub>
C
<sub>6</sub>
H
<sub>4</sub>
NH
<sub>3</sub>
)
<sub>4</sub>
P
<sub>6</sub>
O
<sub>18</sub>
.8H
<sub>2</sub>
O: a = 13.834(2), b = 9.974(2), c = 9.134(1) Å, α = 108.12(1), β=91.93(1), γ = 93.45(1)°, Z = 1, P========Imacr;, V = 1193.9(6) Å
<sup>3</sup>
, and D
<sub>x</sub>
= 1.618 g.cm
<sup>-3</sup>
. The crystal structure was determined using 5214 independent reflections with a final R = 0.027. The atomic arrangement can be described as layers built up by P
<sub>6</sub>
O
<sub>18</sub>
<sup>6-</sup>
ring anions, Cd cations, and water molecules, parallel to the (100) planes. Organic cations are located between these layers.</div>
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