Polarised single crystal Raman spectroscopy of sinhalite, MgAlBO4

Hayward, Chris; Best, Stephen P.; Clark, Robin J. H.; Ross, Nancy L.; Withnall, Rob

doi:10.1016/0584-8539(94)80094-4

“…The crystal structure of Ba BP O has been determined by single crystal XRD method (16), the results are as follows: orthorhombic system, space group Ibca, with lattice constants a"7.0859(13) A s , b"14.2903 (22) A s , c"22.1868(32) A s , »"2246.6(3) A s , and Z"8. In this crystal, boron and phosphorus are tetrahedral coordinated by oxygen.…”

Section: Decomposition Products Analysismentioning

confidence: 99%

Crystal Structure and Thermal Decomposition Studies of Barium Borophosphate, BaBPO5

Shi

¹

,

Liang

²

,

Zhang

³

et al. 1998

Journal of Solid State Chemistry

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sp² to sp³ Hybridization Transformation in Ionic Crystals under Unprecedentedly Low Pressure

Jiang

¹

,

Molokeev

²

,

Wang

³

et al. 2022

Angewandte Chemie

1

0

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Under cold pressure sp 1 /sp 2 -to-sp 3 hybridization transformation has been exclusively observed in covalent or molecular crystals overwhelmingly above � 10 GPa, and the approaches to lower the transition pressure are limited on external heat-treatment and/or catalyzers. Herein we demonstrate that, by internallattice stress-transfer from ionic to covalent groups, the transformation can be significantly prompted, as shown in a crystal of LiBO 2 under 2.85 GPa for the first case in ionic crystals. This unprecedentedly low transformation pressure is ascribed to the enhanced localized stress on covalent BÀ O frames transferred from ionic LiÀ O bonds in LiBO 2 , and accordingly the corresponding structural feature is summarized. This work provides an internal structural regulation strategy for pressure-reduction of the s-p orbital hybridization transformation and extends the sp 1 /sp 2 -to-sp 3 transformation landscape from molecular and covalent compounds to ionic systems.

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sp² to sp³ Hybridization Transformation in Ionic Crystals under Unprecedentedly Low Pressure

Jiang

¹

,

Molokeev

²

,

Wang

³

et al. 2022

View full text Add to dashboard Cite

Under cold pressure sp 1 /sp 2 -to-sp 3 hybridization transformation has been exclusively observed in covalent or molecular crystals overwhelmingly above � 10 GPa, and the approaches to lower the transition pressure are limited on external heat-treatment and/or catalyzers. Herein we demonstrate that, by internallattice stress-transfer from ionic to covalent groups, the transformation can be significantly prompted, as shown in a crystal of LiBO 2 under 2.85 GPa for the first case in ionic crystals. This unprecedentedly low transformation pressure is ascribed to the enhanced localized stress on covalent BÀ O frames transferred from ionic LiÀ O bonds in LiBO 2 , and accordingly the corresponding structural feature is summarized. This work provides an internal structural regulation strategy for pressure-reduction of the s-p orbital hybridization transformation and extends the sp 1 /sp 2 -to-sp 3 transformation landscape from molecular and covalent compounds to ionic systems.

show abstract

Polarised single crystal Raman spectroscopy of sinhalite, MgAlBO4

Cited by 7 publications

References 17 publications

Crystal Structure and Thermal Decomposition Studies of Barium Borophosphate, BaBPO5

Crystal Structure and Thermal Decomposition Studies of Barium Borophosphate, BaBPO5

sp² to sp³ Hybridization Transformation in Ionic Crystals under Unprecedentedly Low Pressure

sp² to sp³ Hybridization Transformation in Ionic Crystals under Unprecedentedly Low Pressure

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Polarised single crystal Raman spectroscopy of sinhalite, MgAlBO4

Cited by 7 publications

References 17 publications

Crystal Structure and Thermal Decomposition Studies of Barium Borophosphate, BaBPO5

Crystal Structure and Thermal Decomposition Studies of Barium Borophosphate, BaBPO5

sp2 to sp3 Hybridization Transformation in Ionic Crystals under Unprecedentedly Low Pressure

sp2 to sp3 Hybridization Transformation in Ionic Crystals under Unprecedentedly Low Pressure

Contact Info

Product

Resources

About

sp² to sp³ Hybridization Transformation in Ionic Crystals under Unprecedentedly Low Pressure

sp² to sp³ Hybridization Transformation in Ionic Crystals under Unprecedentedly Low Pressure