• トップライブラリ一致: 1,5-dithiocan-3-ol #79779

• The top library candidate 1,5‑dithiocan‑3‑ol contains sulfur, yet no characteristic S–O or C–S vibrations are observed in the spectrum, making that identification highly unlikely.
• One direct source attributes the 1079 cm⁻¹ band to silicon‑oxygen [11], which is incompatible with the predominantly organic C–O character of the sample; this assignment is not considered further.
• The low library similarity (0.15) and the absence of a unique, specific marker band prevent a definitive chemical identification; the material may be a mixture or a modified biopolymer.
• The exact nature of the aromatic and amide contributors cannot be determined from the FTIR data alone; alternative analytical techniques are required to clarify the chemical composition.

推奨される次のステップ: To narrow the material direction, perform pyrolysis GC‑MS to identify monomeric units characteristic of polysaccharides (e.g., levoglucosan for cellulose) and to detect lignin markers if the aromatic contribution is significant. If the sample is a plant‑derived material, traditional wet‑chemical analysis or specific staining for lignin/polysaccharide content would provide supporting evidence for the presence of aromatic and carbohydrate fractions. Complementary Raman spectroscopy or solid‑state NMR could help differentiate between water bending and amide contributions at 1644 cm⁻¹.