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Pentacoordinated silicon in the high-pressure modification of datolite, CaBSiO4(OH). / Gorelova, Liudmila A.; Pakhomova, Anna S.; Aprilis, Georgios; Dubrovinsky, Leonid S.; Krivovichev, Sergey V.

In: Inorganic Chemistry Frontiers, Vol. 5, No. 7, 01.07.2018, p. 1653-1660.

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

Harvard

Gorelova, LA, Pakhomova, AS, Aprilis, G, Dubrovinsky, LS & Krivovichev, SV 2018, 'Pentacoordinated silicon in the high-pressure modification of datolite, CaBSiO4(OH)', Inorganic Chemistry Frontiers, vol. 5, no. 7, pp. 1653-1660. https://doi.org/10.1039/c8qi00257f

APA

Gorelova, L. A., Pakhomova, A. S., Aprilis, G., Dubrovinsky, L. S., & Krivovichev, S. V. (2018). Pentacoordinated silicon in the high-pressure modification of datolite, CaBSiO4(OH). Inorganic Chemistry Frontiers, 5(7), 1653-1660. https://doi.org/10.1039/c8qi00257f

Vancouver

Gorelova LA, Pakhomova AS, Aprilis G, Dubrovinsky LS, Krivovichev SV. Pentacoordinated silicon in the high-pressure modification of datolite, CaBSiO4(OH). Inorganic Chemistry Frontiers. 2018 Jul 1;5(7):1653-1660. https://doi.org/10.1039/c8qi00257f

Author

Gorelova, Liudmila A. ; Pakhomova, Anna S. ; Aprilis, Georgios ; Dubrovinsky, Leonid S. ; Krivovichev, Sergey V. / Pentacoordinated silicon in the high-pressure modification of datolite, CaBSiO4(OH). In: Inorganic Chemistry Frontiers. 2018 ; Vol. 5, No. 7. pp. 1653-1660.

BibTeX

@article{b2967e8210f84c809bef8d0e775bded0,
title = "Pentacoordinated silicon in the high-pressure modification of datolite, CaBSiO4(OH)",
abstract = "A new modification of borosilicate datolite, CaBSiO4(OH), has been discovered using synchrotron-based in situ high-pressure single-crystal X-ray diffraction. The phase transition from low (I) to high (II) pressure modification is isosymmetric and occurs between 27 and 33 GPa. The crystal structure of datolite-II contains pentacoordinated Si atoms forming SiO5 triangular bipyramids that share edges to form Si2O8 dimers. The dimers are linked through BO4 tetrahedra, resulting in the [B(SiO4)OH]2- layers of a novel topology that has not previously been observed in inorganic compounds. Datolite-II is only the second inorganic structure that contains Si in purely fivefold coordination. The results obtained shed new light on the high-pressure behaviour of silicates and demonstrate that cold compression can be considered as a low-energy pathway to metastable structures, which might possess unusual and unexpected coordination geometries and topologies.",
author = "Gorelova, {Liudmila A.} and Pakhomova, {Anna S.} and Georgios Aprilis and Dubrovinsky, {Leonid S.} and Krivovichev, {Sergey V.}",
year = "2018",
month = jul,
day = "1",
doi = "10.1039/c8qi00257f",
language = "English",
volume = "5",
pages = "1653--1660",
journal = "Inorganic Chemistry Frontiers",
issn = "2052-1545",
publisher = "Royal Society of Chemistry",
number = "7",

}

RIS

TY - JOUR

T1 - Pentacoordinated silicon in the high-pressure modification of datolite, CaBSiO4(OH)

AU - Gorelova, Liudmila A.

AU - Pakhomova, Anna S.

AU - Aprilis, Georgios

AU - Dubrovinsky, Leonid S.

AU - Krivovichev, Sergey V.

PY - 2018/7/1

Y1 - 2018/7/1

N2 - A new modification of borosilicate datolite, CaBSiO4(OH), has been discovered using synchrotron-based in situ high-pressure single-crystal X-ray diffraction. The phase transition from low (I) to high (II) pressure modification is isosymmetric and occurs between 27 and 33 GPa. The crystal structure of datolite-II contains pentacoordinated Si atoms forming SiO5 triangular bipyramids that share edges to form Si2O8 dimers. The dimers are linked through BO4 tetrahedra, resulting in the [B(SiO4)OH]2- layers of a novel topology that has not previously been observed in inorganic compounds. Datolite-II is only the second inorganic structure that contains Si in purely fivefold coordination. The results obtained shed new light on the high-pressure behaviour of silicates and demonstrate that cold compression can be considered as a low-energy pathway to metastable structures, which might possess unusual and unexpected coordination geometries and topologies.

AB - A new modification of borosilicate datolite, CaBSiO4(OH), has been discovered using synchrotron-based in situ high-pressure single-crystal X-ray diffraction. The phase transition from low (I) to high (II) pressure modification is isosymmetric and occurs between 27 and 33 GPa. The crystal structure of datolite-II contains pentacoordinated Si atoms forming SiO5 triangular bipyramids that share edges to form Si2O8 dimers. The dimers are linked through BO4 tetrahedra, resulting in the [B(SiO4)OH]2- layers of a novel topology that has not previously been observed in inorganic compounds. Datolite-II is only the second inorganic structure that contains Si in purely fivefold coordination. The results obtained shed new light on the high-pressure behaviour of silicates and demonstrate that cold compression can be considered as a low-energy pathway to metastable structures, which might possess unusual and unexpected coordination geometries and topologies.

UR - http://www.scopus.com/inward/record.url?scp=85049833266&partnerID=8YFLogxK

U2 - 10.1039/c8qi00257f

DO - 10.1039/c8qi00257f

M3 - Article

AN - SCOPUS:85049833266

VL - 5

SP - 1653

EP - 1660

JO - Inorganic Chemistry Frontiers

JF - Inorganic Chemistry Frontiers

SN - 2052-1545

IS - 7

ER -

ID: 35995369