Preparation of dimethoxyborane and analysis by Fourier transform infrared spectroscopy

Andreas Bernas, Birgitta Peltopakka, Päivi Mäki-Arvela, Kari Eränen, Tapio Salmi, Dmitry Yu. Murzin*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)


Dimethoxyborane was prepared by the reaction of trimethoxyboroxine, sodium borohydride and trimethyl borate in diethylene glycol dimethyl ether solvent at 70°C under atmospheric pressure followed by distillation to increase the purity and analyzed in liquid phase by FT-IR. The concentration of dimethoxyborane was identified by hydrolysis with water, which yields boric acid, methanol and hydrogen, whereas the generated hydrogen was analyzed by the mass detector of a volumetric flow apparatus. The FT-IR absorbance peak area showed a linear dependence on dimethoxyborane concentration in the wavenumber range 873 to 950 cm-1 for samples with dimethoxyborane concentrations 0 to 6.2 wt% in trimethyl borate. Data fitting using the least square method gave an R 2 value of 97%.

Original languageEnglish
Pages (from-to)645-654
Number of pages10
JournalResearch on Chemical Intermediates
Issue number7
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed


  • Dimethoxyborane
  • FT-IR
  • Hydrolysis
  • Trimethylborate


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