Abstract
Infrared absorption spectra of anhydrous, crystalline, inorganic borates were obtained in the 2000 cm-1 to 300 cm-1 range. Compounds with B10 and B11 isotopes were prepared to assist interpretation. Spectral bands for all orthoborates and pyroborates and some metaborates could be assigned satisfactorily. Borates with complex ring-type anions generally exhibited spectra of such complexity that only superficial interpretation was attempted. From correlations between spectra and structure it appears that boron in 3-fold or in 4-fold coordination can be identified with reasonable assurance on the basis of the infrared spectrum alone. Absorption bands are tabulated for about 80 borates and typical spectra are shown.
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Schedule a callMore From: Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry
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