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Infrared spectrum of formamide in the solid phase

Sivaraman, B and Sekhar, Raja BN and Nair, BG and Hatode, V and Mason, NJ (2013) Infrared spectrum of formamide in the solid phase. In: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 105 . pp. 238-244.

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Official URL: http://dx.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.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Infrared Spectroscopy; Astrochemical Ices; Solid formamide; Ice Morphology; Temperature Effect; Formamide Dimers
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Francis Jayakanth
Date Deposited: 27 May 2013 11:06
Last Modified: 27 May 2013 11:06
URI: http://eprints.iisc.ac.in/id/eprint/46583

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