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Article Abstract
The infrared (IR) spectrum of borane(3) anions (BH) isolated in solid Ar was recorded; two vibrational modes were observed at 2259.4 and 606.6 cm, which were assigned to the BH stretching (ν) and out-of-plane large-amplitude (ν) modes, respectively. These anions were produced by the electron bombardment of an Ar matrix sample containing a small proportion of BH and H during matrix deposition or by the photolysis of single-bridged-BH in an Ar matrix with the selected ultraviolet light. The band positions, relative intensity ratios, isotopic splitting pattern, and isotopic shift ratios of the observed IR features of BH are generally in good agreement with those predicted by the B2PLYP/aug-cc-pVTZ method.
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