NaV1-xP2S6 (x = 0.16): A new compound with infinite straight (1/)[V0.837P2 S6]- chains that exfoliate forming gels

Servane Coste, Eric Gautier, Michel Evain, Martine Bujoli-Doeuff, Raymond Brec, Stéphane Jobic, Mercouri G Kanatzidis

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Abstract

The new 1D chalcogenophosphate material NaV0.837(6)P2S6 has been synthesized and its structure determined by X-ray powder diffraction analysis. This compound crystallizes in the monoclinic space group P21/n with a = 6.9677(3) Å, b = 5.9059(2) Å, c = 21.4537(8) Å, and β = 92.962(2)° [Z = 4, V = 881.66(8) Å3]. The Rietveld refinement led to Rp/Rwp = 0.0208/ 0.0271 (for 94 parameters refined). The material is isostructural with 1D-NaCrP2S6 and contains infinite (1/)[V0.837(6)P2 S6]- chains consisting of randomly occupied edge-sharing [VS6] octahedra defining zigzag (1/)[VS4] ribbons that are capped by tetradendate [P2S6] ethane-like groups linked to three successive [VS6] polyhedra. Because of the nonstoichiometry of the phase, the charge balance can be written as Na+(V4+)0.486(V3+) 0.351(P4+)2(S2-)6. NaV0.837(6)P2S6 is soluble in strongly polar organic solvents such as N-methylformamide (NMF). The exfoliation of NaV0.837(6)P2S6 in NMF leads to gels or to colored colloidal solutions with complex fluid behavior that depends strongly on concentration.

Original languageEnglish
Pages (from-to)2323-2327
Number of pages5
JournalChemistry of Materials
Volume15
Issue number12
DOIs
Publication statusPublished - Jun 17 2003

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methylformamide
Gels
Rietveld refinement
Ethane
X ray powder diffraction
Organic solvents
Fluids

ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

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NaV1-xP2S6 (x = 0.16) : A new compound with infinite straight (1/)[V0.837P2 S6]- chains that exfoliate forming gels. / Coste, Servane; Gautier, Eric; Evain, Michel; Bujoli-Doeuff, Martine; Brec, Raymond; Jobic, Stéphane; Kanatzidis, Mercouri G.

In: Chemistry of Materials, Vol. 15, No. 12, 17.06.2003, p. 2323-2327.

Research output: Contribution to journalArticle

Coste, Servane ; Gautier, Eric ; Evain, Michel ; Bujoli-Doeuff, Martine ; Brec, Raymond ; Jobic, Stéphane ; Kanatzidis, Mercouri G. / NaV1-xP2S6 (x = 0.16) : A new compound with infinite straight (1/)[V0.837P2 S6]- chains that exfoliate forming gels. In: Chemistry of Materials. 2003 ; Vol. 15, No. 12. pp. 2323-2327.
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abstract = "The new 1D chalcogenophosphate material NaV0.837(6)P2S6 has been synthesized and its structure determined by X-ray powder diffraction analysis. This compound crystallizes in the monoclinic space group P21/n with a = 6.9677(3) {\AA}, b = 5.9059(2) {\AA}, c = 21.4537(8) {\AA}, and β = 92.962(2)° [Z = 4, V = 881.66(8) {\AA}3]. The Rietveld refinement led to Rp/Rwp = 0.0208/ 0.0271 (for 94 parameters refined). The material is isostructural with 1D-NaCrP2S6 and contains infinite (1/∞)[V0.837(6)P2 S6]- chains consisting of randomly occupied edge-sharing [VS6] octahedra defining zigzag (1/∞)[VS4] ribbons that are capped by tetradendate [P2S6] ethane-like groups linked to three successive [VS6] polyhedra. Because of the nonstoichiometry of the phase, the charge balance can be written as Na+(V4+)0.486(V3+) 0.351(P4+)2(S2-)6. NaV0.837(6)P2S6 is soluble in strongly polar organic solvents such as N-methylformamide (NMF). The exfoliation of NaV0.837(6)P2S6 in NMF leads to gels or to colored colloidal solutions with complex fluid behavior that depends strongly on concentration.",
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AU - Coste, Servane

AU - Gautier, Eric

AU - Evain, Michel

AU - Bujoli-Doeuff, Martine

AU - Brec, Raymond

AU - Jobic, Stéphane

AU - Kanatzidis, Mercouri G

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N2 - The new 1D chalcogenophosphate material NaV0.837(6)P2S6 has been synthesized and its structure determined by X-ray powder diffraction analysis. This compound crystallizes in the monoclinic space group P21/n with a = 6.9677(3) Å, b = 5.9059(2) Å, c = 21.4537(8) Å, and β = 92.962(2)° [Z = 4, V = 881.66(8) Å3]. The Rietveld refinement led to Rp/Rwp = 0.0208/ 0.0271 (for 94 parameters refined). The material is isostructural with 1D-NaCrP2S6 and contains infinite (1/∞)[V0.837(6)P2 S6]- chains consisting of randomly occupied edge-sharing [VS6] octahedra defining zigzag (1/∞)[VS4] ribbons that are capped by tetradendate [P2S6] ethane-like groups linked to three successive [VS6] polyhedra. Because of the nonstoichiometry of the phase, the charge balance can be written as Na+(V4+)0.486(V3+) 0.351(P4+)2(S2-)6. NaV0.837(6)P2S6 is soluble in strongly polar organic solvents such as N-methylformamide (NMF). The exfoliation of NaV0.837(6)P2S6 in NMF leads to gels or to colored colloidal solutions with complex fluid behavior that depends strongly on concentration.

AB - The new 1D chalcogenophosphate material NaV0.837(6)P2S6 has been synthesized and its structure determined by X-ray powder diffraction analysis. This compound crystallizes in the monoclinic space group P21/n with a = 6.9677(3) Å, b = 5.9059(2) Å, c = 21.4537(8) Å, and β = 92.962(2)° [Z = 4, V = 881.66(8) Å3]. The Rietveld refinement led to Rp/Rwp = 0.0208/ 0.0271 (for 94 parameters refined). The material is isostructural with 1D-NaCrP2S6 and contains infinite (1/∞)[V0.837(6)P2 S6]- chains consisting of randomly occupied edge-sharing [VS6] octahedra defining zigzag (1/∞)[VS4] ribbons that are capped by tetradendate [P2S6] ethane-like groups linked to three successive [VS6] polyhedra. Because of the nonstoichiometry of the phase, the charge balance can be written as Na+(V4+)0.486(V3+) 0.351(P4+)2(S2-)6. NaV0.837(6)P2S6 is soluble in strongly polar organic solvents such as N-methylformamide (NMF). The exfoliation of NaV0.837(6)P2S6 in NMF leads to gels or to colored colloidal solutions with complex fluid behavior that depends strongly on concentration.

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