---
res:
  bibo_abstract:
  - <jats:title>Abstract</jats:title><jats:p>Pure samples of colorless, air‐stable
    Ba(BO<jats:sub>2</jats:sub>OH) crystals were obtained from Ba(NO<jats:sub>3</jats:sub>)<jats:sub>2</jats:sub>
    and H<jats:sub>3</jats:sub>BO<jats:sub>3</jats:sub> under the ultra‐alkaline conditions
    of a KOH hydroflux at about 250 °C. The product formation depends on the water‐base
    molar ratio and the molar ratio of the starting materials. B(OH)<jats:sub>3</jats:sub>
    acts as a proton donor (Brønsted acid) rather than a hydroxide acceptor (Lewis
    acid). Ba(BO<jats:sub>2</jats:sub>OH) crystallizes in the non‐centrosymmetric
    orthorhombic space group <jats:italic>P</jats:italic>2<jats:sub>1</jats:sub>2<jats:sub>1</jats:sub>2<jats:sub>1</jats:sub>.
    Hydrogen bonds connect the almost planar (BO<jats:sub>2</jats:sub>OH)<jats:sup>2−</jats:sup>
    anions, which are isostructural to HCO<jats:sub>3</jats:sub><jats:sup>−</jats:sup>,
    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 °C, Ba(BO<jats:sub>2</jats:sub>OH) dehydrates to Ba<jats:sub>2</jats:sub>B<jats:sub>2</jats:sub>O<jats:sub>5</jats:sub>.
    Moreover, the non‐centrosymmetric structure of Ba(BO<jats:sub>2</jats:sub>OH)
    crystals was verified with power‐dependent confocal Second Harmonic Generation
    (SHG) microscopy indicating large conversion efficiencies in ambient atmosphere.</jats:p>@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Yuxi
      foaf_name: Li, Yuxi
      foaf_surname: Li
  - foaf_Person:
      foaf_givenName: Peter A.
      foaf_name: Hegarty, Peter A.
      foaf_surname: Hegarty
  - foaf_Person:
      foaf_givenName: Michael
      foaf_name: Rüsing, Michael
      foaf_surname: Rüsing
      foaf_workInfoHomepage: http://www.librecat.org/personId=22501
    orcid: 0000-0003-4682-4577
  - foaf_Person:
      foaf_givenName: Lukas M.
      foaf_name: Eng, Lukas M.
      foaf_surname: Eng
  - foaf_Person:
      foaf_givenName: Michael
      foaf_name: Ruck, Michael
      foaf_surname: Ruck
  bibo_doi: 10.1002/zaac.202200193
  bibo_issue: '21'
  bibo_volume: 648
  dct_date: 2022^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0044-2313
  - http://id.crossref.org/issn/1521-3749
  dct_language: eng
  dct_publisher: Wiley@
  dct_subject:
  - Inorganic Chemistry
  dct_title: Ba(BO2OH) – A Monoprotonated Monoborate from Hydroflux Showing Intense
    Second Harmonic Generation@
...