Infrared spectrum of formamide in the solid phase

Sivaraman, B.; Sekhar, B. N. Raja; Nair, B. G.; Hatode, V. and Mason, N. J. (2013). Infrared spectrum of formamide in the solid phase. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 105 pp. 238–244.

DOI: https://doi.org/10.1016/j.saa.2012.12.039

Abstract

Infrared spectra of solid formamide are reported as a function of temperature. Solid formamide samples were prepared at 30 K and then annealed to higher temperatures (300 K) with infrared transmission spectra being recorded over the entire temperature range. The NH₂ vibrations of the formamide molecule were found to be particularly very sensitive to temperature change. The IR spectra revealed a phase change occurring in solid formamide between 155 and 165 K. Spectral changes observed above and below the phase transition may be attributed to a rearrangement between formamide dimers and the formation of polymers is proposed at higher temperatures.

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About

• Item ORO ID
• 36298
• Item Type
• Journal Item
• ISSN
• 1386-1425
• Keywords
• infrared spectroscopy; astrochemical ices; solid formamide; ice morphology; temperature effect; formamide dimers
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Research Group
• Physics
• Copyright Holders
• © 2012 Elsevier B.V.
• Depositing User
• Astrid Peterkin