NEW LAYERED POLYANION IN Α-CSB5O8 HIGH-TEMPERATURE MODIFICATION

R.S. Bubnova, V.S. Fundamensky, J.E. Anderson, S.K. Filatov

Research output

23 Citations (Scopus)

Abstract

Crystal structure of high-temperature polymorphic modification, α-CsB5O8, was determined from single-crystal X-ray diffraction data. The phase crystallizes in space group P21/c with a = 7.122(2), b = 9.640(3), c = 11.411(3) Å, β = 116.64(2)° and V = 700.3(3) Å3, Z = 4. It contains new zigzag layer polyanions built up from rigid [B5O8]- pentaborate groups that consist of four triangles and a tetrahedron condensed to a double ring via common tetrahedron. The cesium cations are located in large cavities of the layers and they are coordinated by nine oxygen atoms with distances from 3.037 to 3.429 Å. Five of the oxygen atoms are placed in the same layer as cesium atom; other four ones are distributed between two adjacent layers. Under heating this structure demonstrates a highly anisotropic thermal expansion (α11 = 27, α22 = 61, α33 = -8 × 10-6 K-1); the thermal expansion in the direction perpendicular to the layer is the intermediate one. © 2002 Éditions scientifiques et médicales Elsevier SAS. All rights reserv
Original languageEnglish
Pages (from-to)87-91
JournalSolid State Sciences
Issue number1
Publication statusPublished - 2002
Externally publishedYes

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Cesium
Atoms
Thermal expansion
Oxygen
cesium
tetrahedrons
thermal expansion
oxygen atoms
Temperature
Cations
Crystal structure
Positive ions
Single crystals
Heating
X ray diffraction
SAS
triangles
polyanions
cations
cavities

Cite this

Bubnova, R. S., Fundamensky, V. S., Anderson, J. E., & Filatov, S. K. (2002). NEW LAYERED POLYANION IN Α-CSB5O8 HIGH-TEMPERATURE MODIFICATION. Solid State Sciences, (1), 87-91.
Bubnova, R.S. ; Fundamensky, V.S. ; Anderson, J.E. ; Filatov, S.K. / NEW LAYERED POLYANION IN Α-CSB5O8 HIGH-TEMPERATURE MODIFICATION. In: Solid State Sciences. 2002 ; No. 1. pp. 87-91.
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abstract = "Crystal structure of high-temperature polymorphic modification, α-CsB5O8, was determined from single-crystal X-ray diffraction data. The phase crystallizes in space group P21/c with a = 7.122(2), b = 9.640(3), c = 11.411(3) {\AA}, β = 116.64(2)° and V = 700.3(3) {\AA}3, Z = 4. It contains new zigzag layer polyanions built up from rigid [B5O8]- pentaborate groups that consist of four triangles and a tetrahedron condensed to a double ring via common tetrahedron. The cesium cations are located in large cavities of the layers and they are coordinated by nine oxygen atoms with distances from 3.037 to 3.429 {\AA}. Five of the oxygen atoms are placed in the same layer as cesium atom; other four ones are distributed between two adjacent layers. Under heating this structure demonstrates a highly anisotropic thermal expansion (α11 = 27, α22 = 61, α33 = -8 × 10-6 K-1); the thermal expansion in the direction perpendicular to the layer is the intermediate one. {\circledC} 2002 {\'E}ditions scientifiques et m{\'e}dicales Elsevier SAS. All rights reserv",
author = "R.S. Bubnova and V.S. Fundamensky and J.E. Anderson and S.K. Filatov",
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language = "English",
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Bubnova, RS, Fundamensky, VS, Anderson, JE & Filatov, SK 2002, 'NEW LAYERED POLYANION IN Α-CSB5O8 HIGH-TEMPERATURE MODIFICATION', Solid State Sciences, no. 1, pp. 87-91.

NEW LAYERED POLYANION IN Α-CSB5O8 HIGH-TEMPERATURE MODIFICATION. / Bubnova, R.S.; Fundamensky, V.S.; Anderson, J.E.; Filatov, S.K.

In: Solid State Sciences, No. 1, 2002, p. 87-91.

Research output

TY - JOUR

T1 - NEW LAYERED POLYANION IN Α-CSB5O8 HIGH-TEMPERATURE MODIFICATION

AU - Bubnova, R.S.

AU - Fundamensky, V.S.

AU - Anderson, J.E.

AU - Filatov, S.K.

PY - 2002

Y1 - 2002

N2 - Crystal structure of high-temperature polymorphic modification, α-CsB5O8, was determined from single-crystal X-ray diffraction data. The phase crystallizes in space group P21/c with a = 7.122(2), b = 9.640(3), c = 11.411(3) Å, β = 116.64(2)° and V = 700.3(3) Å3, Z = 4. It contains new zigzag layer polyanions built up from rigid [B5O8]- pentaborate groups that consist of four triangles and a tetrahedron condensed to a double ring via common tetrahedron. The cesium cations are located in large cavities of the layers and they are coordinated by nine oxygen atoms with distances from 3.037 to 3.429 Å. Five of the oxygen atoms are placed in the same layer as cesium atom; other four ones are distributed between two adjacent layers. Under heating this structure demonstrates a highly anisotropic thermal expansion (α11 = 27, α22 = 61, α33 = -8 × 10-6 K-1); the thermal expansion in the direction perpendicular to the layer is the intermediate one. © 2002 Éditions scientifiques et médicales Elsevier SAS. All rights reserv

AB - Crystal structure of high-temperature polymorphic modification, α-CsB5O8, was determined from single-crystal X-ray diffraction data. The phase crystallizes in space group P21/c with a = 7.122(2), b = 9.640(3), c = 11.411(3) Å, β = 116.64(2)° and V = 700.3(3) Å3, Z = 4. It contains new zigzag layer polyanions built up from rigid [B5O8]- pentaborate groups that consist of four triangles and a tetrahedron condensed to a double ring via common tetrahedron. The cesium cations are located in large cavities of the layers and they are coordinated by nine oxygen atoms with distances from 3.037 to 3.429 Å. Five of the oxygen atoms are placed in the same layer as cesium atom; other four ones are distributed between two adjacent layers. Under heating this structure demonstrates a highly anisotropic thermal expansion (α11 = 27, α22 = 61, α33 = -8 × 10-6 K-1); the thermal expansion in the direction perpendicular to the layer is the intermediate one. © 2002 Éditions scientifiques et médicales Elsevier SAS. All rights reserv

M3 - Article

SP - 87

EP - 91

JO - Solid State Sciences

JF - Solid State Sciences

SN - 1293-2558

IS - 1

ER -