NickelMaghrebV1, PascalFrancis, Corpus, bibRecord, 000427

Study of the crystal structures of sodium magnesium and sodium nickel diphosphates

Identifieur interne : 000427 ( PascalFrancis/Corpus ); précédent : 000426; suivant : 000428

Study of the crystal structures of sodium magnesium and sodium nickel diphosphates

Auteurs : F. Erragh ; A. Boukhari ; F. Abraham ; B. Elouadi

Source :

Journal of solid state chemistry [ 0022-4596 ] ; 2000.

RBID : Pascal:00-0465869

Descripteurs français

Pascal (Inist)
- Etude expérimentale, Diffraction RX, Structure cristalline, Structure tunnel, Sodium Diphosphate, Magnésium Diphosphate, Nickel Diphosphate, 6166F, Na3,64Mg2,18(P2O7)2, Mg Na O P, Na3,64Ni2,18(P2O7)2, Na Ni O P.

English descriptors

KwdEn :
- Channel structure, Crystal structure, Experimental study, Magnesium Pyrophosphates, Nickel Pyrophosphates, Sodium Pyrophosphates, XRD.

Abstract

Single-crystal X-ray crystallography studies have shown that diphosphates Na_3,64Mg_2.18(P₂O₇)₂ and Na_3.64Ni_2.18(P₂O₇)₂ crystallize with the same structural type and the same space group P1. Their triclinic lattice parameters are equal to a = 10.901 (2), b = 9.765 (2), c = 6.382 (1) Å, α = 112.43 (1)°, β = 99.64 (1)°, γ = 107.53 (1)°, Z = 2 and a = 10.889 (5), b = 9.705 (4), c = 6.358 (4) A, α = 112.46 (4)°, β = 99.92 (4)°, y = 107.54 (4)°, Z = 2, respectively. The structure could be regarded as a packing of diphosphate groups [P₂O₇]^4- and [MO₆] octahedra (M = Mg, Ni) delimiting cavities and tunnels which host sodium cations. The tunnels are running along [001]. The structure is characterized by mixed (Na, M) sites with an occupation factor ratio equal to ca. 0.82/0.18. Sodium cations are located in five different sites: two cavities (one penta- and the other octa-coordinated) totally occupied and three octahedral interstices, which are partially filled by Na(3), Na(4), and Na(5) according to the respective occupation factors of 0.15, 0.42, and 0.25 for Na_3.64Mg_2.18(P₂O₇)₂ and 0.13, 0.40, and 0.29 in the case of Na_3.64Ni_2.18(P₂O₇)₂.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0022-4596`
A02	`01`			`@0 JSSCBI`
A03		`1`		`@0 J. solid state chem.`
A05				`@2 152`
A06				`@2 2`
A08	`01`	`1`	`ENG`	`@1 Study of the crystal structures of sodium magnesium and sodium nickel diphosphates`
A11	`01`	`1`		`@1 ERRAGH (F.)`
A11	`02`	`1`		`@1 BOUKHARI (A.)`
A11	`03`	`1`		`@1 ABRAHAM (F.)`
A11	`04`	`1`		`@1 ELOUADI (B.)`
A14	`01`			`@1 Applied Solid State Chemistry Laboratory, Faculty of Sciences, Charia Ibn Batota @2 Rabat @3 MAR @Z 1 aut. @Z 2 aut.`
A14	`02`			`@1 Department of Chemistry, Faculty of Sciences @2 El Jadida @3 MAR @Z 1 aut.`
A14	`03`			`@1 Laboratoire de Cristallochimie et Physicochimie du Solide, URPRES A CNRS 8012 Université de Lille I, ENSCL, B.P. 108 @2 59652 Villeneuve d'Ascq @3 FRA @Z 3 aut.`
A14	`04`			`@1 LEACIM, Département de Chimie, Université de La Rochelle, Avenue Marillac @2 17042 La Rochelle @3 FRA @Z 4 aut.`
A20				`@1 323-331`
A21				`@1 2000`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 14677 @5 354000090212630010`
A44				`@0 0000 @1 © 2000 INIST-CNRS. All rights reserved.`
A45				`@0 32 ref.`
A47	`01`	`1`		`@0 00-0465869`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Journal of solid state chemistry`
A66	`01`			`@0 USA`
C01	`01`		`ENG`	@0 Single-crystal X-ray crystallography studies have shown that diphosphates Na_3,64Mg_2.18(P₂O₇)₂ and Na_3.64Ni_2.18(P₂O₇)₂ crystallize with the same structural type and the same space group P1. Their triclinic lattice parameters are equal to a = 10.901 (2), b = 9.765 (2), c = 6.382 (1) Å, α = 112.43 (1)°, β = 99.64 (1)°, γ = 107.53 (1)°, Z = 2 and a = 10.889 (5), b = 9.705 (4), c = 6.358 (4) A, α = 112.46 (4)°, β = 99.92 (4)°, y = 107.54 (4)°, Z = 2, respectively. The structure could be regarded as a packing of diphosphate groups [P₂O₇]^4- and [MO₆] octahedra (M = Mg, Ni) delimiting cavities and tunnels which host sodium cations. The tunnels are running along [001]. The structure is characterized by mixed (Na, M) sites with an occupation factor ratio equal to ca. 0.82/0.18. Sodium cations are located in five different sites: two cavities (one penta- and the other octa-coordinated) totally occupied and three octahedral interstices, which are partially filled by Na(3), Na(4), and Na(5) according to the respective occupation factors of 0.15, 0.42, and 0.25 for Na_3.64Mg_2.18(P₂O₇)₂ and 0.13, 0.40, and 0.29 in the case of Na_3.64Ni_2.18(P₂O₇)₂.
C02	`01`	`3`		`@0 001B60A66F4`
C03	`01`	`3`	`FRE`	`@0 Etude expérimentale @5 01`
C03	`01`	`3`	`ENG`	`@0 Experimental study @5 01`
C03	`02`	`3`	`FRE`	`@0 Diffraction RX @5 02`
C03	`02`	`3`	`ENG`	`@0 XRD @5 02`
C03	`03`	`3`	`FRE`	`@0 Structure cristalline @5 03`
C03	`03`	`3`	`ENG`	`@0 Crystal structure @5 03`
C03	`04`	`X`	`FRE`	`@0 Structure tunnel @5 05`
C03	`04`	`X`	`ENG`	`@0 Channel structure @5 05`
C03	`04`	`X`	`SPA`	`@0 Estructura túnel @5 05`
C03	`05`	`3`	`FRE`	`@0 Sodium Diphosphate @2 NC @2 NA @5 07`
C03	`05`	`3`	`ENG`	`@0 Sodium Pyrophosphates @2 NC @2 NA @5 07`
C03	`06`	`3`	`FRE`	`@0 Magnésium Diphosphate @2 NC @2 NA @5 08`
C03	`06`	`3`	`ENG`	`@0 Magnesium Pyrophosphates @2 NC @2 NA @5 08`
C03	`07`	`3`	`FRE`	`@0 Nickel Diphosphate @2 NC @2 NA @5 09`
C03	`07`	`3`	`ENG`	`@0 Nickel Pyrophosphates @2 NC @2 NA @5 09`
C03	`08`	`3`	`FRE`	`@0 6166F @2 PAC @4 INC @5 56`
C03	`09`	`3`	`FRE`	`@0 Na3,64Mg2,18(P2O7)2 @4 INC @5 92`
C03	`10`	`3`	`FRE`	`@0 Mg Na O P @4 INC @5 93`
C03	`11`	`3`	`FRE`	`@0 Na3,64Ni2,18(P2O7)2 @4 INC @5 94`
C03	`12`	`3`	`FRE`	`@0 Na Ni O P @4 INC @5 95`
C07	`01`	`3`	`FRE`	`@0 Composé minéral @5 04`
C07	`01`	`3`	`ENG`	`@0 Inorganic compounds @5 04`
C07	`02`	`3`	`FRE`	`@0 Métal transition composé @5 06`
C07	`02`	`3`	`ENG`	`@0 Transition element compounds @5 06`
N21				`@1 311`

Format Inist (serveur)

NO :	PASCAL 00-0465869 INIST
ET :	Study of the crystal structures of sodium magnesium and sodium nickel diphosphates
AU :	ERRAGH (F.); BOUKHARI (A.); ABRAHAM (F.); ELOUADI (B.)
AF :	Applied Solid State Chemistry Laboratory, Faculty of Sciences, Charia Ibn Batota/Rabat/Maroc (1 aut., 2 aut.); Department of Chemistry, Faculty of Sciences/El Jadida/Maroc (1 aut.); Laboratoire de Cristallochimie et Physicochimie du Solide, URPRES A CNRS 8012 Université de Lille I, ENSCL, B.P. 108/59652 Villeneuve d'Ascq/France (3 aut.); LEACIM, Département de Chimie, Université de La Rochelle, Avenue Marillac/17042 La Rochelle/France (4 aut.)
DT :	Publication en série; Niveau analytique
SO :	Journal of solid state chemistry; ISSN 0022-4596; Coden JSSCBI; Etats-Unis; Da. 2000; Vol. 152; No. 2; Pp. 323-331; Bibl. 32 ref.
LA :	Anglais
EA :	Single-crystal X-ray crystallography studies have shown that diphosphates Na_3,64Mg_2.18(P₂O₇)₂ and Na_3.64Ni_2.18(P₂O₇)₂ crystallize with the same structural type and the same space group P1. Their triclinic lattice parameters are equal to a = 10.901 (2), b = 9.765 (2), c = 6.382 (1) Å, α = 112.43 (1)°, β = 99.64 (1)°, γ = 107.53 (1)°, Z = 2 and a = 10.889 (5), b = 9.705 (4), c = 6.358 (4) A, α = 112.46 (4)°, β = 99.92 (4)°, y = 107.54 (4)°, Z = 2, respectively. The structure could be regarded as a packing of diphosphate groups [P₂O₇]^4- and [MO₆] octahedra (M = Mg, Ni) delimiting cavities and tunnels which host sodium cations. The tunnels are running along [001]. The structure is characterized by mixed (Na, M) sites with an occupation factor ratio equal to ca. 0.82/0.18. Sodium cations are located in five different sites: two cavities (one penta- and the other octa-coordinated) totally occupied and three octahedral interstices, which are partially filled by Na(3), Na(4), and Na(5) according to the respective occupation factors of 0.15, 0.42, and 0.25 for Na_3.64Mg_2.18(P₂O₇)₂ and 0.13, 0.40, and 0.29 in the case of Na_3.64Ni_2.18(P₂O₇)₂.
CC :	001B60A66F4
FD :	Etude expérimentale; Diffraction RX; Structure cristalline; Structure tunnel; Sodium Diphosphate; Magnésium Diphosphate; Nickel Diphosphate; 6166F; Na3,64Mg2,18(P2O7)2; Mg Na O P; Na3,64Ni2,18(P2O7)2; Na Ni O P
FG :	Composé minéral; Métal transition composé
ED :	Experimental study; XRD; Crystal structure; Channel structure; Sodium Pyrophosphates; Magnesium Pyrophosphates; Nickel Pyrophosphates
EG :	Inorganic compounds; Transition element compounds
SD :	Estructura túnel
LO :	INIST-14677.354000090212630010
ID :	00-0465869

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Pascal:00-0465869

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<author><name sortKey="Abraham, F" sort="Abraham, F" uniqKey="Abraham F" first="F." last="Abraham">F. Abraham</name>
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<s2>59652 Villeneuve d'Ascq</s2>
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<sZ>3 aut.</sZ>
</inist:fA14>
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<author><name sortKey="Elouadi, B" sort="Elouadi, B" uniqKey="Elouadi B" first="B." last="Elouadi">B. Elouadi</name>
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<series><title level="j" type="main">Journal of solid state chemistry</title>
<title level="j" type="abbreviated">J. solid state chem.</title>
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<imprint><date when="2000">2000</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Channel structure</term>
<term>Crystal structure</term>
<term>Experimental study</term>
<term>Magnesium Pyrophosphates</term>
<term>Nickel Pyrophosphates</term>
<term>Sodium Pyrophosphates</term>
<term>XRD</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term>
<term>Diffraction RX</term>
<term>Structure cristalline</term>
<term>Structure tunnel</term>
<term>Sodium Diphosphate</term>
<term>Magnésium Diphosphate</term>
<term>Nickel Diphosphate</term>
<term>6166F</term>
<term>Na3,64Mg2,18(P2O7)2</term>
<term>Mg Na O P</term>
<term>Na3,64Ni2,18(P2O7)2</term>
<term>Na Ni O P</term>
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<front><div type="abstract" xml:lang="en">Single-crystal X-ray crystallography studies have shown that diphosphates Na<sub>3,64</sub>
Mg<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub>2</sub>
 and Na<sub>3.64</sub>
Ni<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub>2</sub>
 crystallize with the same structural type and the same space group P1. Their triclinic lattice parameters are equal to a = 10.901 (2), b = 9.765 (2), c = 6.382 (1) Å, α = 112.43 (1)°, β = 99.64 (1)°, γ = 107.53 (1)°, Z = 2 and a = 10.889 (5), b = 9.705 (4), c = 6.358 (4) A, α = 112.46 (4)°, β = 99.92 (4)°, y = 107.54 (4)°, Z = 2, respectively. The structure could be regarded as a packing of diphosphate groups [P<sub>2</sub>
O<sub>7</sub>
]<sup>4-</sup>
 and [MO<sub>6</sub>
] octahedra (M = Mg, Ni) delimiting cavities and tunnels which host sodium cations. The tunnels are running along [001]. The structure is characterized by mixed (Na, M) sites with an occupation factor ratio equal to ca. 0.82/0.18. Sodium cations are located in five different sites: two cavities (one penta- and the other octa-coordinated) totally occupied and three octahedral interstices, which are partially filled by Na(3), Na(4), and Na(5) according to the respective occupation factors of 0.15, 0.42, and 0.25 for Na<sub>3.64</sub>
Mg<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub>2</sub>
 and 0.13, 0.40, and 0.29 in the case of Na<sub>3.64</sub>
Ni<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub>2</sub>
.</div>
</front>
</TEI>
<inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0022-4596</s0>
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<fA05><s2>152</s2>
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<fA08 i1="01" i2="1" l="ENG"><s1>Study of the crystal structures of sodium magnesium and sodium nickel diphosphates</s1>
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<fA11 i1="01" i2="1"><s1>ERRAGH (F.)</s1>
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<fA11 i1="02" i2="1"><s1>BOUKHARI (A.)</s1>
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<fA11 i1="03" i2="1"><s1>ABRAHAM (F.)</s1>
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<fA14 i1="01"><s1>Applied Solid State Chemistry Laboratory, Faculty of Sciences, Charia Ibn Batota</s1>
<s2>Rabat</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</fA14>
<fA14 i1="02"><s1>Department of Chemistry, Faculty of Sciences</s1>
<s2>El Jadida</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
</fA14>
<fA14 i1="03"><s1>Laboratoire de Cristallochimie et Physicochimie du Solide, URPRES A CNRS 8012 Université de Lille I, ENSCL, B.P. 108</s1>
<s2>59652 Villeneuve d'Ascq</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
</fA14>
<fA14 i1="04"><s1>LEACIM, Département de Chimie, Université de La Rochelle, Avenue Marillac</s1>
<s2>17042 La Rochelle</s2>
<s3>FRA</s3>
<sZ>4 aut.</sZ>
</fA14>
<fA20><s1>323-331</s1>
</fA20>
<fA21><s1>2000</s1>
</fA21>
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<fA43 i1="01"><s1>INIST</s1>
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<s1>© 2000 INIST-CNRS. All rights reserved.</s1>
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<fA66 i1="01"><s0>USA</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>Single-crystal X-ray crystallography studies have shown that diphosphates Na<sub>3,64</sub>
Mg<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub>2</sub>
 and Na<sub>3.64</sub>
Ni<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub>2</sub>
 crystallize with the same structural type and the same space group P1. Their triclinic lattice parameters are equal to a = 10.901 (2), b = 9.765 (2), c = 6.382 (1) Å, α = 112.43 (1)°, β = 99.64 (1)°, γ = 107.53 (1)°, Z = 2 and a = 10.889 (5), b = 9.705 (4), c = 6.358 (4) A, α = 112.46 (4)°, β = 99.92 (4)°, y = 107.54 (4)°, Z = 2, respectively. The structure could be regarded as a packing of diphosphate groups [P<sub>2</sub>
O<sub>7</sub>
]<sup>4-</sup>
 and [MO<sub>6</sub>
] octahedra (M = Mg, Ni) delimiting cavities and tunnels which host sodium cations. The tunnels are running along [001]. The structure is characterized by mixed (Na, M) sites with an occupation factor ratio equal to ca. 0.82/0.18. Sodium cations are located in five different sites: two cavities (one penta- and the other octa-coordinated) totally occupied and three octahedral interstices, which are partially filled by Na(3), Na(4), and Na(5) according to the respective occupation factors of 0.15, 0.42, and 0.25 for Na<sub>3.64</sub>
Mg<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub>2</sub>
 and 0.13, 0.40, and 0.29 in the case of Na<sub>3.64</sub>
Ni<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub>2</sub>
.</s0>
</fC01>
<fC02 i1="01" i2="3"><s0>001B60A66F4</s0>
</fC02>
<fC03 i1="01" i2="3" l="FRE"><s0>Etude expérimentale</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="3" l="ENG"><s0>Experimental study</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="3" l="FRE"><s0>Diffraction RX</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="3" l="ENG"><s0>XRD</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="3" l="FRE"><s0>Structure cristalline</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="3" l="ENG"><s0>Crystal structure</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Structure tunnel</s0>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Channel structure</s0>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Estructura túnel</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="3" l="FRE"><s0>Sodium Diphosphate</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>07</s5>
</fC03>
<fC03 i1="05" i2="3" l="ENG"><s0>Sodium Pyrophosphates</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="3" l="FRE"><s0>Magnésium Diphosphate</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>08</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Magnesium Pyrophosphates</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE"><s0>Nickel Diphosphate</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>09</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG"><s0>Nickel Pyrophosphates</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="3" l="FRE"><s0>6166F</s0>
<s2>PAC</s2>
<s4>INC</s4>
<s5>56</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE"><s0>Na3,64Mg2,18(P2O7)2</s0>
<s4>INC</s4>
<s5>92</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>Mg Na O P</s0>
<s4>INC</s4>
<s5>93</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Na3,64Ni2,18(P2O7)2</s0>
<s4>INC</s4>
<s5>94</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Na Ni O P</s0>
<s4>INC</s4>
<s5>95</s5>
</fC03>
<fC07 i1="01" i2="3" l="FRE"><s0>Composé minéral</s0>
<s5>04</s5>
</fC07>
<fC07 i1="01" i2="3" l="ENG"><s0>Inorganic compounds</s0>
<s5>04</s5>
</fC07>
<fC07 i1="02" i2="3" l="FRE"><s0>Métal transition composé</s0>
<s5>06</s5>
</fC07>
<fC07 i1="02" i2="3" l="ENG"><s0>Transition element compounds</s0>
<s5>06</s5>
</fC07>
<fN21><s1>311</s1>
</fN21>
</pA>
</standard>
<server><NO>PASCAL 00-0465869 INIST</NO>
<ET>Study of the crystal structures of sodium magnesium and sodium nickel diphosphates</ET>
<AU>ERRAGH (F.); BOUKHARI (A.); ABRAHAM (F.); ELOUADI (B.)</AU>
<AF>Applied Solid State Chemistry Laboratory, Faculty of Sciences, Charia Ibn Batota/Rabat/Maroc (1 aut., 2 aut.); Department of Chemistry, Faculty of Sciences/El Jadida/Maroc (1 aut.); Laboratoire de Cristallochimie et Physicochimie du Solide, URPRES A CNRS 8012 Université de Lille I, ENSCL, B.P. 108/59652 Villeneuve d'Ascq/France (3 aut.); LEACIM, Département de Chimie, Université de La Rochelle, Avenue Marillac/17042 La Rochelle/France (4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of solid state chemistry; ISSN 0022-4596; Coden JSSCBI; Etats-Unis; Da. 2000; Vol. 152; No. 2; Pp. 323-331; Bibl. 32 ref.</SO>
<LA>Anglais</LA>
<EA>Single-crystal X-ray crystallography studies have shown that diphosphates Na<sub>3,64</sub>
Mg<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub>2</sub>
 and Na<sub>3.64</sub>
Ni<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub>2</sub>
 crystallize with the same structural type and the same space group P1. Their triclinic lattice parameters are equal to a = 10.901 (2), b = 9.765 (2), c = 6.382 (1) Å, α = 112.43 (1)°, β = 99.64 (1)°, γ = 107.53 (1)°, Z = 2 and a = 10.889 (5), b = 9.705 (4), c = 6.358 (4) A, α = 112.46 (4)°, β = 99.92 (4)°, y = 107.54 (4)°, Z = 2, respectively. The structure could be regarded as a packing of diphosphate groups [P<sub>2</sub>
O<sub>7</sub>
]<sup>4-</sup>
 and [MO<sub>6</sub>
] octahedra (M = Mg, Ni) delimiting cavities and tunnels which host sodium cations. The tunnels are running along [001]. The structure is characterized by mixed (Na, M) sites with an occupation factor ratio equal to ca. 0.82/0.18. Sodium cations are located in five different sites: two cavities (one penta- and the other octa-coordinated) totally occupied and three octahedral interstices, which are partially filled by Na(3), Na(4), and Na(5) according to the respective occupation factors of 0.15, 0.42, and 0.25 for Na<sub>3.64</sub>
Mg<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub> 2</sub>
 and 0.13, 0.40, and 0.29 in the case of Na<sub>3.64</sub>
Ni<sub>2.18</sub>
(P<sub>2</sub>
O<sub>7</sub>
)<sub>2</sub>
.</EA>
<CC>001B60A66F4</CC>
<FD>Etude expérimentale; Diffraction RX; Structure cristalline; Structure tunnel; Sodium Diphosphate; Magnésium Diphosphate; Nickel Diphosphate; 6166F; Na3,64Mg2,18(P2O7)2; Mg Na O P; Na3,64Ni2,18(P2O7)2; Na Ni O P</FD>
<FG>Composé minéral; Métal transition composé</FG>
<ED>Experimental study; XRD; Crystal structure; Channel structure; Sodium Pyrophosphates; Magnesium Pyrophosphates; Nickel Pyrophosphates</ED>
<EG>Inorganic compounds; Transition element compounds</EG>
<SD>Estructura túnel</SD>
<LO>INIST-14677.354000090212630010</LO>
<ID>00-0465869</ID>
</server>
</inist>
</record>

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Study of the crystal structures of sodium magnesium and sodium nickel diphosphates

Study of the crystal structures of sodium magnesium and sodium nickel diphosphates

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