Alkali metal alkoxyborate ester salts; a contemporary look at old compounds

Berger, Amanda; Ibrahim, Ainee; Hales, Thomas A.; D'Angelo, Anita M.; Buckley, Craig E.; Paskevicius, Mark

doi:10.1039/d3dt03721e

Dalton Trans.

2024

DOI: 10.1039/d3dt03721e

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Alkali metal alkoxyborate ester salts; a contemporary look at old compounds

Amanda Berger,

Ainee Ibrahim,

Thomas A. Hales

et al.

Abstract: Research into the use of sodium tetraalkoxyborate salts for different chemical applications including synthetic catalysis, hydrogen storage, or battery applications has been investigated, however, understanding of the structural, thermal and...

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Unraveling the Crystal Structure of Sodium Tetrabenzylborate: Synthesis through the Sodium Borohydride Reduction of Benzaldehyde in the Solid State

Castilla-Martinez,

Granier,

Yot

et al. 2024

Inorganics

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We present the synthesis, characterization, and crystal structure of sodium tetrabenzylborate, a novel tetraalkoxyborate obtained via a direct mechanochemical reaction between benzaldehyde and sodium borohydride at room temperature. The molecular and crystal structures of this borate were investigated using 11B MAS NMR, IR spectroscopy, differential scanning calorimetry (DSC), and X-ray diffraction (XRD) analyses. Crystalline sodium tetrabenzylborate exists in two different crystal structures, which were elucidated using powder- and single-crystal-XRD analyses. At a low temperature (e.g., −100 °C), sodium tetrabenzylborate crystallizes in the monoclinic system with the space group P21 (No. 4), but at room temperature, it displays a crystallization in the tetragonal system with the space group I4¯ (No. 82). According to the DSC analysis, the phase transition occurs at −45 °C. Upon hydrolysis, sodium tetrabenzylborate undergoes direct transformation into benzyl alcohol, thereby confirming the ability of sodium borohydride to convert an aldehyde into its primary alcohol analog. The key findings from our analyses are presented herein.

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Unraveling the Crystal Structure of Sodium Tetrabenzylborate: Synthesis through the Sodium Borohydride Reduction of Benzaldehyde in the Solid State

Castilla-Martinez,

Granier,

Yot

et al. 2024

Inorganics

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show abstract

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Alkali metal alkoxyborate ester salts; a contemporary look at old compounds

Abstract: Research into the use of sodium tetraalkoxyborate salts for different chemical applications including synthetic catalysis, hydrogen storage, or battery applications has been investigated, however, understanding of the structural, thermal and...

Cited by 1 publication

References 45 publications

Unraveling the Crystal Structure of Sodium Tetrabenzylborate: Synthesis through the Sodium Borohydride Reduction of Benzaldehyde in the Solid State

Unraveling the Crystal Structure of Sodium Tetrabenzylborate: Synthesis through the Sodium Borohydride Reduction of Benzaldehyde in the Solid State

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