IR Absorption Table
IR Absorption Table Wavenumber (cm⁻¹) Absorption Group / Structure Notes 3600–3650 Sharp, strong Free O–H (phenol/alcohol) Not H-bonded 3500–3450 Sharp, medium 2° amine N–H (–NH) Single absorption 340…
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FTIR Learning Series (60 Episodes) — Index | 红外光谱科普系列索引
FTIR Learning Series / 红外光谱科普系列 Canonical SEO pages (preferred for reading & search): Series index : https://ftir.fun/learn/ir/ Chinese: https://ftir.fun/learn/ir/?hl=zh-hans This forum topic is a…
Common Materials by FTIR — Index | 常见材料红外鉴定索引
Common Materials by FTIR — Index | 常见材料红外鉴定索引 Canonical material pages under /ir/material/ . Showing top 40 materials by cited DOI coverage (not the full catalog). Materials chitosan ( chitosan ) — 24…
Common FTIR Functional Groups — Index | 常见官能团索引
Common FTIR Functional Groups — Index | 常见官能团索引 Canonical group pages under /ir/group/ . Full searchable table: https://ftir.fun/ir/frequency-table/ Showing top 40 groups by supporting facts (not the…
FTIR IR Evidence Pages Hub — /ir/ Index | 红外光谱证据页总索引
FTIR IR Evidence Pages Hub / 红外光谱证据页总索引 Canonical pages (preferred for search & citation): Frequency table : https://ftir.fun/ir/frequency-table/ Chinese: https://ftir.fun/ir/frequency-table/?hl=z…
9-Vinylanthracene / Styrenic Polymer FTIR Analysis: DPT Format Full-Spectrum Search
Substance Overview Target Substance (library + LLM consensus): 9-Vinylanthracene (9-Ethenylanthracene) / 9-Vinylanthracene / 9-Ethenylanthracene Molecular Formula: C₁₆H₁₂ CAS No.: 2444-68-0 Library To…
Polystyrene (PS) FTIR Spectrum Analysis: LLM Reasoning vs. Library Match
Substance Overview Target Substance (library + LLM consensus): Polystyrene (PS) / Polystyrene Molecular Formula: (C₈H₈)ₙ CAS No.: 9003-53-6 Library Top-1 Hit: 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9-hexadecaf…
Results20260708092657018103445
inorganic sulfate salt, possibly hydrated The main component may be an inorganic sulfate salt, likely with water of crystallization. The spectrum exhibits a strong, broad S=O asymmetric stretch charac…
Results20260625084011913764142
LLM暂时无法使用，请稍后重试。 LLM暂时无法使用，请稍后重试。 Review the report above first. Use the comments below for follow-up questions or extra information. en&2
Results20260625104516302797707
ethane-1,2-diol The main component may be ethane-1,2-diol (ethylene glycol). The spectrum exhibits a broad O–H stretching band near 3287 cm⁻¹, alkyl C–H stretches at 2935 and 2876 cm⁻¹, and C–O stretc…