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Structural changes in metastable γ-Na2B4O7 between –150 ºC and 720 ºC. / Fofanova, M.; Bubnova, R.; AlbertI, B.; Filatov, S.; Cordier, G.; Egorysheva, A.

In: Zeitschrift fur Kristallographie, Vol. 228, No. 10, 2013, p. 520-525.

Research output: Contribution to journal › Article › peer-review

Harvard

Fofanova, M, Bubnova, R, AlbertI, B, Filatov, S, Cordier, G & Egorysheva, A 2013, 'Structural changes in metastable γ-Na2B4O7 between –150 ºC and 720 ºC', Zeitschrift fur Kristallographie, vol. 228, no. 10, pp. 520-525. https://doi.org/10.1524/zkri.2013.1637

APA

Fofanova, M., Bubnova, R., AlbertI, B., Filatov, S., Cordier, G., & Egorysheva, A. (2013). Structural changes in metastable γ-Na2B4O7 between –150 ºC and 720 ºC. Zeitschrift fur Kristallographie, 228(10), 520-525. https://doi.org/10.1524/zkri.2013.1637

Vancouver

Fofanova M, Bubnova R, AlbertI B, Filatov S, Cordier G, Egorysheva A. Structural changes in metastable γ-Na2B4O7 between –150 ºC and 720 ºC. Zeitschrift fur Kristallographie. 2013;228(10):520-525. https://doi.org/10.1524/zkri.2013.1637

Author

Fofanova, M. ; Bubnova, R. ; AlbertI, B. ; Filatov, S. ; Cordier, G. ; Egorysheva, A. / Structural changes in metastable γ-Na2B4O7 between –150 ºC and 720 ºC. In: Zeitschrift fur Kristallographie. 2013 ; Vol. 228, No. 10. pp. 520-525.

BibTeX

@article{1f753b9527e74eabb6f1923dd71f1039,
title = "Structural changes in metastable γ-Na2B4O7 between –150 ºC and 720 ºC",
abstract = "Temperature-dependent structural studies of the metastable phase gamma-Na2B4O7 (triclinic, P (1) over bar) have been performed by low temperature single crystal X-ray diffraction at -150, -120, -75, -50 and 27 degrees C and by high temperature X-ray powder diffraction in the range of 27 to 780 degrees C. gamma-Na2B4O7 melts at 720 +/- 10 degrees C. The thermal expansion of the crystal structure is sharply anisotropic. Between -150 degrees C and 600 degrees C the main coefficients of the thermal expansion tensor are alpha(11) = 14, alpha(22) = -1, alpha(33) = 9, alpha(V) = 22 x 10(-6) K-1. gamma-Na2B4O7 consists of a three-dimensional framework with two crystallographically independent pentaborate groups as fundamental building blocks that are connected via two tetrahedra. Upon heating from -150 up to 27 degrees C, the pentaborate groups are stable but the structure expands due to changing B-O-B angles. Owing to nearly parallel orientation of the pentaborate groups in the structure, a minimal expansion in the",
author = "M. Fofanova and R. Bubnova and B. AlbertI and S. Filatov and G. Cordier and A. Egorysheva",
year = "2013",
doi = "10.1524/zkri.2013.1637",
language = "English",
volume = "228",
pages = "520--525",
journal = "Zeitschfrift fur Kristallographie",
issn = "0044-2968",
publisher = "De Gruyter",
number = "10",

}

RIS

TY - JOUR

T1 - Structural changes in metastable γ-Na2B4O7 between –150 ºC and 720 ºC

AU - Fofanova, M.

AU - Bubnova, R.

AU - AlbertI, B.

AU - Filatov, S.

AU - Cordier, G.

AU - Egorysheva, A.

PY - 2013

Y1 - 2013

N2 - Temperature-dependent structural studies of the metastable phase gamma-Na2B4O7 (triclinic, P (1) over bar) have been performed by low temperature single crystal X-ray diffraction at -150, -120, -75, -50 and 27 degrees C and by high temperature X-ray powder diffraction in the range of 27 to 780 degrees C. gamma-Na2B4O7 melts at 720 +/- 10 degrees C. The thermal expansion of the crystal structure is sharply anisotropic. Between -150 degrees C and 600 degrees C the main coefficients of the thermal expansion tensor are alpha(11) = 14, alpha(22) = -1, alpha(33) = 9, alpha(V) = 22 x 10(-6) K-1. gamma-Na2B4O7 consists of a three-dimensional framework with two crystallographically independent pentaborate groups as fundamental building blocks that are connected via two tetrahedra. Upon heating from -150 up to 27 degrees C, the pentaborate groups are stable but the structure expands due to changing B-O-B angles. Owing to nearly parallel orientation of the pentaborate groups in the structure, a minimal expansion in the

AB - Temperature-dependent structural studies of the metastable phase gamma-Na2B4O7 (triclinic, P (1) over bar) have been performed by low temperature single crystal X-ray diffraction at -150, -120, -75, -50 and 27 degrees C and by high temperature X-ray powder diffraction in the range of 27 to 780 degrees C. gamma-Na2B4O7 melts at 720 +/- 10 degrees C. The thermal expansion of the crystal structure is sharply anisotropic. Between -150 degrees C and 600 degrees C the main coefficients of the thermal expansion tensor are alpha(11) = 14, alpha(22) = -1, alpha(33) = 9, alpha(V) = 22 x 10(-6) K-1. gamma-Na2B4O7 consists of a three-dimensional framework with two crystallographically independent pentaborate groups as fundamental building blocks that are connected via two tetrahedra. Upon heating from -150 up to 27 degrees C, the pentaborate groups are stable but the structure expands due to changing B-O-B angles. Owing to nearly parallel orientation of the pentaborate groups in the structure, a minimal expansion in the

U2 - 10.1524/zkri.2013.1637

DO - 10.1524/zkri.2013.1637

M3 - Article

VL - 228

SP - 520

EP - 525

JO - Zeitschfrift fur Kristallographie

JF - Zeitschfrift fur Kristallographie

SN - 0044-2968

IS - 10

ER -

ID: 7406120