Table 1 Theoretical assignments to the bands observed on the FTIR and Raman spectra presented in Fig. 5, where individual nature of vibrational mode was depicted as ν - stretching, δ - deformation; (CCO)* refers to the saccharide ring47.
From: Unexpected Crossover in the kinetics of mutarotation in the supercooled region: the role of H-bonds
νFTIR [cm−1] | νRS [cm−1] | Theoretical band assignments | |||
|---|---|---|---|---|---|
α-L-sorbopyranose | β-L-sorbopyranose | α-L-sorbofuranose | β -L-sorbofuranose | ||
790 | 726 | ν(CCO)*, δ(CH2) | δ(OH), δ(CH2) | ν(CCO)*, δ(CH), | |
815 | 822 | ν(CCO)*, δ(CH), | δ(CH), δ(OH) | ν(CCO)*, δ(CH), | |
876 | 903 | δ(CH2), δ(OH) | ν(CCO)*, δ(CH), δ(CH2) | ||
900 | 910 | ν(CC), δ(CH), δ(CH2) | ν(CCO)*, δ(CH2), δ(OH) | ||
930 | 949 | ν(CCO)*, δ(CH2), δ(OH) | δ(CH), δ(CH2) | ||
981 | 994 | ν(CCO)*, δ(CH), δ(OH) | δ(CH2), δ(OH) | ||
1006 | 1010 | δ(CH2), δ(OH) | ν(CCO)*, δ(CH2), δ(OH) | ||
1011 | 1020 | ν(CCO)*, δ(OH) | ν(CCO)*, δ(CH2), δ(OH) | ||
1036 | 1080 | ν(CCO)*, δ(OH) | δ(CH2), δ(OH) | δ(CH2), δ(OH) | δ(CH2), δ(OH) |
3322 | 3380 | ν(OH) | ν(OH) | ν(OH) | ν(OH) |
