Abstract
The interaction of proton donors with Bu4NBH4 and BH3NEt3 in hexane and dichloromethane was studied by IR and NMR spectroscopy and it was found for the first time that the proton-accepting centre of interaction of charged and neutral borohydrides with proton donors in solution is the hydrogen atom; the spectral and thermodynamic characteristics of the BH···HX hydrogen bond in solution were obtained and found, from enthalpy values, to be of medium strength.
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