IR Spectra for Carbohydrates

Table: IR Spectra of Sucrose, Glucose, and Fructose.

Material Wavenumber (cm⁻¹) Assignment Annotations Ref
Sucrose (H₂O)₅ 1645 ν₂ H₂O R2
Sucrose (H₂O)₅ 2680 comb. R2
Sucrose (H₂O)₅ 2850 comb. R2
Sucrose (H₂O)₅ 2882 νCH₂ s R2
Sucrose (H₂O)₅ 2938 νCH₂ as R2
Sucrose (H₂O)₅ 2974 νCH₃ as R2
Sucrose (H₂O)₅ 868 νC-C R2
Sucrose (H₂O)₅ 929 νC-C fruc R2
Sucrose (H₂O)₅ 998 νC-O exo vs R2
Sucrose (H₂O)₅ ~2125 ν₂ H₂O + νLH₂O R2
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NOMENCLATURE:

IR: Experimental IR frequencies
Note: The water bands are identified by H2O; the other bands are those of sucrose.
Abbreviations: fru, D-fructosyl moiety; glu, D-glucosyl moiety; δ, deformation; ν, stretch; τ, torsion; ω, wag; endo, endocyclic; exo, exocyclic; s, strong; d, double; m, medium; sh, shoulder; w, weak. Annotations: The following symbols are used: S, strong; M, medium; W, weak; Sh, shoulder; Br, broad; V, very; d, doublet

References:

R1: Kodad H., Mokhlisse R., Davin E., Mille G. Etude IRTF Par Reflexion Totale Attenuee (ATR) De Sucres en Solution Aqueuse. Can. J. Appl. Spectrosc. 1994;39:107–112.

R2: Max, J.-J., & Chapados, C. (2001). Sucrose Hydrates in Aqueous Solution by IR Spectroscopy. The Journal of Physical Chemistry A, 105(47), 10681–10688. DOI: https://doi.org/10.1021/jp012809j

R3: Max, J.-J., & Chapados, C. (2007). Glucose and Fructose Hydrates in Aqueous Solution by IR Spectroscopy. The Journal of Physical Chemistry A, 111(14), 2679–2689. DOI: https://doi.org/10.1021/jp066882r

R4: Wiercigroch, E., Szafraniec, E., Czamara, K., Pacia, M. Z., Majzner, K., Kochan, K., Kaczor, A., Baranska, M., & Malek, K. (2017). Raman and infrared spectroscopy of carbohydrates: A review. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 185, 317–335. DOI: https://doi.org/10.1016/j.saa.2017.05.045