Abstract

Matrix-isolated (MI) Fourier transform infrared spectra (FT-IR) have been collected on a series of aldehydes and acids. The values for the carbonyl absorption are intermediate between the higher values for vapor-phase (VP) and lower values for solid-state (SS) phases. Substituent effects on aromatic rings induce shifts in carbonyl absorptions in the same manner as found in VP and SS studies. The magnitude of the shifts is approximately the same for all three phases. The spectra reveal a splitting or broadening of the carbonyl absorption for both aldehydes and acids. The size of the molecule affects the degree of band broadening. In certain cases discrete conformers appear to have been isolated in the matrix.

Towards a standard operating procedure for revealing hidden volatile organic compounds in breath: the Fourier-transform IR spectroscopy case

Alexander Apolonski and Kiran Sankar Maiti
Appl. Opt. 60(14) 4217-4224 (2021)

Quantitative Liquid-Phase Infrared Spectra of Several Simple Organic Compounds

Hugh R. Carlon
Appl. Opt. 11(3) 549-550 (1972)

Similarities in the Infrared Spectra of Homologous Compounds

Richard G. Fowler and Raymond M. Smith
J. Opt. Soc. Am. 43(11) 1054-1057 (1953)

Analysis of far-infrared emission Fourier transform spectra

Jae H. Park and Bruno Carli
Appl. Opt. 25(19) 3490-3501 (1986)

Spectroscopy from the Point of View of Communication Theory. Part IV. Automatic Recording of Infrared Spectra on Punched Cards

Gilbert W. King, Elaine H. Blanton, and Joanna Frawley
J. Opt. Soc. Am. 44(5) 397-402 (1954)