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Spectroscopic Evidence for Atmospheric Stabilization of Aluminum Borohydride in Polydimethylsiloxane Grease

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Abstract:

Raman and infrared vibrational spectroscopy were used to confirm the presence of aluminum borohydride dissolved in a commercial polydimethylsiloxane vacuum grease at room temperature. Spectroscopic evidence for an adduct between the aluminum borohydride and polydimethylsiloxane is also presented. Once dissolved in the polydimethylsiloxane grease, the aluminum borohydride was stabilized with respect to its usual pyrophoric reactivity in wet or dry air.

Keywords: Aluminum borohydride; FT-IR spectroscopy; Fourier transform infrared spectroscopy; Polydimethylsiloxane grease; Raman spectroscopy; Reactive stabilization; Spectroscopic medium

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/11-06448

Affiliations: Toyota Research Institute of North America, 1555 Woodridge Ave., Ann Arbor, Michigan 48109, USA

Publication date: May 1, 2012

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