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  Ba(BO2OH) - A Monoprotonated Monoborate from Hydroflux Showing Intense Second Harmonic Generation

Li, Y., Hegarty, P. A., Rüsing, M., Eng, L. M., & Ruck, M. (2022). Ba(BO2OH) - A Monoprotonated Monoborate from Hydroflux Showing Intense Second Harmonic Generation. Zeitschrift für anorganische und allgemeine Chemie, e202200193, pp. 1-6. doi:10.1002/zaac.202200193.

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 Creators:
Li, Yuxi1, Author
Hegarty, Peter A.1, Author
Rüsing, Michael1, Author
Eng, Lukas M.1, Author
Ruck, Michael2, Author           
Affiliations:
1External Organizations, ou_persistent22              
2Michael Ruck, Max Planck Fellow, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863444              

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 Abstract: Pure samples of colorless, air-stable Ba(BO2OH) crystals were obtained from Ba(NO3)(2) and H3BO3 under the ultra-alkaline conditions of a KOH hydroflux at about 250 degrees C. The product formation depends on the water-base molar ratio and the molar ratio of the starting materials. B(OH)(3) acts as a proton donor (Bronsted acid) rather than a hydroxide acceptor (Lewis acid). Ba(BO2OH) crystallizes in the non-centrosymmetric orthorhombic space group P2(1)2(1)2(1). Hydrogen bonds connect the almost planar (BO2OH)(2-) anions, which are isostructural to HCO3-, into a syndiotactic chain. IR and Raman spectroscopy confirm the presence of hydroxide groups, which are involved in weak hydrogen bonds. Upon heating in air to about 450 degrees C, Ba(BO2OH) dehydrates to Ba2B2O5. Moreover, the non-centrosymmetric structure of Ba(BO2OH) crystals was verified with power-dependent confocal Second Harmonic Generation (SHG) microscopy indicating large conversion efficiencies in ambient atmosphere.

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Language(s): eng - English
 Dates: 2022-07-202022-07-20
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000831336900001
DOI: 10.1002/zaac.202200193
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Title: Zeitschrift für anorganische und allgemeine Chemie
  Other : J. Inorg. Gen Chem.
  Other : Journal of Inorganic and General Chemistry
  Abbreviation : Z. Anorg. Allg. Chem.
Source Genre: Journal
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Publ. Info: Leipzig, Weinheim : Verlag Johann Ambrosius Barth / Wiley-VCH
Pages: - Volume / Issue: - Sequence Number: e202200193 Start / End Page: 1 - 6 Identifier: Other: 1521-3749
ISSN: 0044-2313
CoNE: https://pure.mpg.de/cone/journals/resource/954925453895