Powder X-Ray Diffraction Data on Polymorphism of RbBSi2O6 and Crystal Structure of Its High-Temperature Modification

Research output

Abstract

Structural deformations and phase transformations of Rb-boroleucite RbBSi2O6 obtained by crystallization from glass at 1000 °C are studied by high-temperature X-ray powder diffraction and differential scanning calorimetry in the range 25–1200 °C. At 345 °C the compound undergoes a reversible cubic-cubic polymorphic transition with increasing symmetry I4 ¯ 3 d↔ Ia3 ¯ d. The crystal structure of RbBSi2O6 is refined by the Rietveld method at temperatures of 25 °C, 100 °C, 200 °C, 300 °C, 310 °C, 320 °C, 330 °C, 340 °C, 350 °C, 360 °C, 380 °C, 400 °C, 500 °C, 600 °C, 700 °C, 800 °C, and 900 °C, according to the powder X-ray diffraction data.

Original languageEnglish
Pages (from-to)1995-2000
Number of pages6
JournalJournal of Structural Chemistry
Volume59
Issue number8
DOIs
Publication statusPublished - 1 Dec 2018

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polymorphism
Polymorphism
X ray powder diffraction
Crystal structure
Rietveld method
crystal structure
Crystal symmetry
Crystallization
diffraction
phase transformations
Differential scanning calorimetry
x rays
heat measurement
Phase transitions
crystallization
Glass
Temperature
scanning
glass
symmetry

Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

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title = "Powder X-Ray Diffraction Data on Polymorphism of RbBSi2O6 and Crystal Structure of Its High-Temperature Modification",
abstract = "Structural deformations and phase transformations of Rb-boroleucite RbBSi2O6 obtained by crystallization from glass at 1000 °C are studied by high-temperature X-ray powder diffraction and differential scanning calorimetry in the range 25–1200 °C. At 345 °C the compound undergoes a reversible cubic-cubic polymorphic transition with increasing symmetry I4 ¯ 3 d↔ Ia3 ¯ d. The crystal structure of RbBSi2O6 is refined by the Rietveld method at temperatures of 25 °C, 100 °C, 200 °C, 300 °C, 310 °C, 320 °C, 330 °C, 340 °C, 350 °C, 360 °C, 380 °C, 400 °C, 500 °C, 600 °C, 700 °C, 800 °C, and 900 °C, according to the powder X-ray diffraction data.",
keywords = "borosilicates, leucite, polymorphism, powder X-ray diffraction, thermal behavior",
author = "Krzhizhanovskaya, {M. G.} and Bubnova, {R. S.} and Filatov, {S. K.}",
year = "2018",
month = "12",
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language = "English",
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journal = "Journal of Structural Chemistry",
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TY - JOUR

T1 - Powder X-Ray Diffraction Data on Polymorphism of RbBSi2O6 and Crystal Structure of Its High-Temperature Modification

AU - Krzhizhanovskaya, M. G.

AU - Bubnova, R. S.

AU - Filatov, S. K.

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Structural deformations and phase transformations of Rb-boroleucite RbBSi2O6 obtained by crystallization from glass at 1000 °C are studied by high-temperature X-ray powder diffraction and differential scanning calorimetry in the range 25–1200 °C. At 345 °C the compound undergoes a reversible cubic-cubic polymorphic transition with increasing symmetry I4 ¯ 3 d↔ Ia3 ¯ d. The crystal structure of RbBSi2O6 is refined by the Rietveld method at temperatures of 25 °C, 100 °C, 200 °C, 300 °C, 310 °C, 320 °C, 330 °C, 340 °C, 350 °C, 360 °C, 380 °C, 400 °C, 500 °C, 600 °C, 700 °C, 800 °C, and 900 °C, according to the powder X-ray diffraction data.

AB - Structural deformations and phase transformations of Rb-boroleucite RbBSi2O6 obtained by crystallization from glass at 1000 °C are studied by high-temperature X-ray powder diffraction and differential scanning calorimetry in the range 25–1200 °C. At 345 °C the compound undergoes a reversible cubic-cubic polymorphic transition with increasing symmetry I4 ¯ 3 d↔ Ia3 ¯ d. The crystal structure of RbBSi2O6 is refined by the Rietveld method at temperatures of 25 °C, 100 °C, 200 °C, 300 °C, 310 °C, 320 °C, 330 °C, 340 °C, 350 °C, 360 °C, 380 °C, 400 °C, 500 °C, 600 °C, 700 °C, 800 °C, and 900 °C, according to the powder X-ray diffraction data.

KW - borosilicates

KW - leucite

KW - polymorphism

KW - powder X-ray diffraction

KW - thermal behavior

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DO - 10.1134/S0022476618080322

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SP - 1995

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JO - Journal of Structural Chemistry

JF - Journal of Structural Chemistry

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