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. 2020 Apr 28;12(5):283. doi: 10.3390/toxins12050283

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Theoretical infrared spectra of CH₃NH₃⁺ interactions—(a) A3 (AFB₁O₁₂O₁₃∙∙∙⁺H₃NCH₃), (b) A4 (AFB₁O₁₃∙∙∙⁺H₃NCH₃), (c) A6 (AFB₁O₁₂∙∙∙⁺H₃NCH₃) and (d) A7 (AFB₁O₁₃O₁₂∙∙∙⁺H₃NCH₃).