APSe6 (A = K, Rb, and Cs): Polymeric Selenophosphates with Reversible Phase-Change Properties

In Chung; Junghwan Do; Christian G. Canlas; David P. Weliky; Mercouri G. Kanatzidis

doi:10.1021/ic035448q

APSe₆ (A = K, Rb, and Cs): Polymeric Selenophosphates with Reversible Phase-Change Properties

In Chung, Junghwan Do, Christian G. Canlas, David P. Weliky^*, Mercouri G. Kanatzidis

^*Corresponding author for this work

Chemistry

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Abstract

The ternary alkali selenophosphates KPSe₆ and RbPSe₆ crystallize in the polar orthorhombic space group Pca2₁ with a = 11.7764(17) Å, b = 6.8580(10) Å, c = 11.4596(16) Å, and Z = 4 for RbPSe₆. CsPSe₆ crystallizes in the monoclinic space group P2/n with a = 6.877(3) Å, b = 12.713(4) Å, c = 11.242(4) Å, β = 92.735(7)°, and Z = 4. All compounds feature the one-dimensional infinite chain of [PSe₂(Se)₄^-], where each P atom is connected with Se₄^2- bridge. These compounds show reversible glass-crystal transition, and ³¹P NMR data suggest that crystallization and infinite [PSe₆^-] chain formation are coupled processes.

Original language	English (US)
Pages (from-to)	2762-2764
Number of pages	3
Journal	Inorganic chemistry
Volume	43
Issue number	9
DOIs	https://doi.org/10.1021/ic035448q
State	Published - May 3 2004

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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@article{365e81a38658483d8ab9ad278e45d8e8,

title = "APSe6 (A = K, Rb, and Cs): Polymeric Selenophosphates with Reversible Phase-Change Properties",

abstract = "The ternary alkali selenophosphates KPSe6 and RbPSe6 crystallize in the polar orthorhombic space group Pca21 with a = 11.7764(17) {\AA}, b = 6.8580(10) {\AA}, c = 11.4596(16) {\AA}, and Z = 4 for RbPSe6. CsPSe6 crystallizes in the monoclinic space group P2/n with a = 6.877(3) {\AA}, b = 12.713(4) {\AA}, c = 11.242(4) {\AA}, β = 92.735(7)°, and Z = 4. All compounds feature the one-dimensional infinite chain of [PSe2(Se)4-], where each P atom is connected with Se42- bridge. These compounds show reversible glass-crystal transition, and 31P NMR data suggest that crystallization and infinite [PSe6-] chain formation are coupled processes.",

author = "In Chung and Junghwan Do and Canlas, {Christian G.} and Weliky, {David P.} and Kanatzidis, {Mercouri G.}",

year = "2004",

month = may,

day = "3",

doi = "10.1021/ic035448q",

language = "English (US)",

volume = "43",

pages = "2762--2764",

journal = "Inorganic chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "9",

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TY - JOUR

T1 - APSe6 (A = K, Rb, and Cs)

T2 - Polymeric Selenophosphates with Reversible Phase-Change Properties

AU - Chung, In

AU - Do, Junghwan

AU - Canlas, Christian G.

AU - Weliky, David P.

AU - Kanatzidis, Mercouri G.

PY - 2004/5/3

Y1 - 2004/5/3

N2 - The ternary alkali selenophosphates KPSe6 and RbPSe6 crystallize in the polar orthorhombic space group Pca21 with a = 11.7764(17) Å, b = 6.8580(10) Å, c = 11.4596(16) Å, and Z = 4 for RbPSe6. CsPSe6 crystallizes in the monoclinic space group P2/n with a = 6.877(3) Å, b = 12.713(4) Å, c = 11.242(4) Å, β = 92.735(7)°, and Z = 4. All compounds feature the one-dimensional infinite chain of [PSe2(Se)4-], where each P atom is connected with Se42- bridge. These compounds show reversible glass-crystal transition, and 31P NMR data suggest that crystallization and infinite [PSe6-] chain formation are coupled processes.

AB - The ternary alkali selenophosphates KPSe6 and RbPSe6 crystallize in the polar orthorhombic space group Pca21 with a = 11.7764(17) Å, b = 6.8580(10) Å, c = 11.4596(16) Å, and Z = 4 for RbPSe6. CsPSe6 crystallizes in the monoclinic space group P2/n with a = 6.877(3) Å, b = 12.713(4) Å, c = 11.242(4) Å, β = 92.735(7)°, and Z = 4. All compounds feature the one-dimensional infinite chain of [PSe2(Se)4-], where each P atom is connected with Se42- bridge. These compounds show reversible glass-crystal transition, and 31P NMR data suggest that crystallization and infinite [PSe6-] chain formation are coupled processes.

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JF - Inorganic chemistry

IS - 9

ER -

APSe₆ (A = K, Rb, and Cs): Polymeric Selenophosphates with Reversible Phase-Change Properties

Abstract

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