Abstract

Infrared spectra of several 1,3-dicarbonyl compounds from different organic chemical classes have been recorded. Assignments of characteristic enol frequencies have been made, and group frequency ranges developed. In most cases, the ranges are reasonably narrow considering the great changes in overall structure of the examples studied. The enol structure affects to a significant degree the absorption frequencies of certain modes.

Infrared Band Assignments for the 2900 cm⁻¹ Region Methyl Group Vibrations in XC₆H₄COOCH₃, XC₆H₄CH₃, and XC₆H₄COCH₃ Molecules

Marie-Thèrèse Forel, Nelson Fuson, and Marie-Louise Josien
J. Opt. Soc. Am. 50(12) 1228-1231 (1960)

Infrared-absorption characteristics of the pyrochlore structure*

Ronald A. McCauley
J. Opt. Soc. Am. 63(6) 721-725 (1973)

Optical absorption spectrum of trivalent cerium in Y₂O₃, Ba₂GdTaO₆, ThO₂, and related compounds

Glen A. Slack, Stephen L. Dole, Veneta Tsoukala, and George S. Nolas
J. Opt. Soc. Am. B 11(6) 961-974 (1994)

Absorption coefficients of selected explosives and related compounds in the range of 0.1–2.8 THz

Jian Chen, Yunqing Chen, Hongwei Zhao, Glenn J. Bastiaans, and X.-C. Zhang
Opt. Express 15(19) 12060-12067 (2007)

Similarities in the Infrared Spectra of Homologous Compounds

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