What absorbs at 3232 cm⁻¹ in an FTIR spectrum?
A band near 3232 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
クイックアンサー
A band near 3232 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.
可能性のある官能基アサイン
| 官能基 | 裏付け事実 | 引用元 | 最高信頼度 |
|---|---|---|---|
| Carbonate | 3 | 3 | 1.0 |
| Secondary amine | 2 | 2 | 1.0 |
| N h | 2 | 2 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Nitro (NO2) | 1 | 1 | 1.0 |
| Fluorine (C-F) | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Metal hydroxyl | 1 | 1 | 0.9 |
ランキングは蓄積された文献証拠を反映しており、単一の権威あるルールではありません。常にサンプルのコンテキストと照合して確認してください。
可能性のある材料
| 素材 | 補助ピーク | 重複グループ | 引用元 |
|---|---|---|---|
| diamond | 3232, 1378, 1332 | Secondary amine, Methoxy (OCH3) | 1 |
| calcium carbonate | 3232, 2954, 1320 | Carbonate, Methoxy (OCH3) | 1 |
同じ文献プールがこのバンドと少なくとも1つの追加の特性ピークをサポートする場合にのみ、材料が表示されます。
スペクトルロジック
This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 3232 cm⁻¹ is usually not enough for material identification by itself.
実使用例
この種のクエリは、ポリマー識別、未知のプラスチックスクリーニング、QCトラブルシューティング、リサイクル材料の検証、および文献に基づいたピーク帰属のレビューで一般的です。
よくある間違い
- 少なくとも1～2つの支持ピークを確認せずに、1つの孤立したバンドを材料の証拠として扱うこと。
- 重複を無視: 複数の官能基が同じ波数付近に寄与することがあります。
- 添加剤、ブレンド、酸化、または汚染がスペクトルを歪める可能性がある場合に検証を省略すること。
検証アドバイス
曖昧さが残る場合は、特にブレンド、劣化サンプル、充填ポリマーについて、DSC、GC-MS、またはTGAで仮説を検証してください。
これらのアサインの根拠となる文献
-
Hydroxyl (O-H) 信頼度 1.0
“These features dominant peak at 3309 with two subordinate peaks at 3232 and 3184 These were revealed by FTIR analysis and were found to be related to the structural OH groups features were revealed by FTIR analysis and were found to be rela”
Wang 和 Takahashi - 2023 - Development of Mid-Infrared Absorption Spectroscop DOI: 10.3390/min13050625 -
信頼度 1.0
“complex, the same bands were observed at 3232 and Our results revealed that L1, Pt(II)L1 and Pt(II)L2 had cm(cid:2)1 3136 which shifts to lower frequency by 128 and a cytotoxic effect on the human retinoblastoma cell line cm(cid:2)1 53 as c”
Synthesis and in vitro activity of platinum(II) complexes of two fluorenylspirohydantoins against a human tumour cell line DOI: 10.1080/13102818.2014.910363 -
Carbonate 信頼度 1.0
“42significant the FTIR spectrum shows the powder material to be dehyAs no other HPO peaks were observed in the droxylated (due to the diminished OHpeaks) and conFTIR spectra for the HAp powder, it would be suggested 3232cm-1 taining carbona”
The deposition of strontium and zinc Co-substituted hydroxyapatite coatings DOI: 10.1007/s10856-017-5846-2 -
N h 信頼度 1.0
“General procedure for the synthesis of 7-hydroxy-4-phenylquinoline cm(cid:2)1): 3462.01, 3376.59, 3336.67 (NH2, hexane (7:3)), FTIR (KBr disc, derivatives (5a-o) (C(cid:3)N), NH stretch), 3231.58, 3186.68, 3066.43 (Ar CH), 2192.36”
7-Hydroxy-4-phenyl-1, 2-dihydroquinoline derivatives: synthesis via one-pot, three-component reaction and structure elucidation DOI: 10.1016/j.heliyon.2020.e05035 -
N h 信頼度 1.0
“215(cid:3)C 218(cid:3)C, 13C-NMR 2), 4.58 (s, 1H, Hd), (75 MHz, DMSOOff white solid, Yield: 65%, m.p: to Rf: 0.69 2H, NH cm-1): δ n-hexane 6) 160.9(C4), 149.3 (C7, C6), 146.1 (C14), 131.6 (C12), d [Acetone: (7:3)], FTIR (KBr disk, 129.9 (C1”
Development of an Efficient, One-Pot, Multicomponent Protocol for Synthesis of 8-Hydroxy-4-Phenyl-1,2-Dihydroquinoline Derivatives DOI: 10.1002/jhet.4193 -
Carbonate 信頼度 1.0
“The main calcite bands are centered The 3232at ~2514 [ν1 (CO results of enzymatic analyses also denied the presence of sucrose in symmetric stretching) + ν3 (CO asymmetric”
Zhang 等 - 2020 - CONTRIBUTION OF ENZYMATIC METHOD FOR ANALYZING SUC DOI: 10.21577/0100-4042.20170561 -
Carbonate 信頼度 1.0
“Herit Sci (2021) 9:4 Page 9 of 15 Table 6 FTIR band assignment of calcite, tile dust and sticky rice powder (cm-1) Wavenumber Band assignment 3232symmetric stretching) ν3 (CO asymmetric stretching) and/or 2ν2 (O-C-O out-of-plane Calcite ~ 2”
Zhang 等 - 2021 - Effects of sticky rice addition on the properties DOI: 10.1186/s40494-020-00475-z -
Metal hydroxyl 信頼度 0.9
“Side peaks at 3232 and 3185 are part of the 3309 cm-1 series assigned as -Ti-OH stretching.”
Phlayrahan 等 - 2018 - Fe oxidation state in heat-treated basaltic blue s DOI: 10.1088/1742-6596/1144/1/012057
このバンドを持つスペクトルがありますか？
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