What absorbs at 3107 cm⁻¹ in an FTIR spectrum?

快速回答

A band near 3107 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.

可能的官能基指派

排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。

可能的材料

僅當同一文獻庫支援此波段以及至少一個額外特徵峰時，才會顯示材料。

光譜邏輯

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 3107 cm⁻¹ is usually not enough for material identification by itself.

實際使用

此類查詢常見於聚合物鑑別、未知塑膠篩選、品管故障排除、再生材料驗證，以及基於文獻的峰值歸屬審查。

常見錯誤

• 將一個孤立的譜帶視為材料的證據，而未檢查至少一兩個支持峰。
• 忽略重疊：多個官能團可能在相同波數附近貢獻。
• 當添加劑、混合物、氧化或污染物可能扭曲譜圖時，跳過驗證。

驗證建議

當仍然存在歧義時，使用DSC、GC-MS或TGA驗證假設，特別是對於混合物、降解樣品和填充聚合物。

這些指派背後的文獻

• N-O bond 信心 1.0

  “cm-1, 3085.4 For diamonds with no milky features, ~76% of them showed the peak at 3107 cm-1, while only ~8% showed a very weak peak at 3085.4 which is absent in the rest of the 23”

  Gu 和 Wang - 2018 - Optical defects in milky type IaB diamonds DOI: 10.1016/j.diamond.2018.09.010
• 信心 1.0

  “4), values very rarely observed globally but Hydrogen impurities in diamond are indicated by an infrared 3107cm-1, absorption peak at characteristic for so-called Group B (high-Ca eclogitic) diamonds attributed to stretching vibrations of”

  The micro-/macro-diamond relationship: A case study from the Artemisia kimberlite (Northern Slave Craton, Canada) DOI: 10.1016/j.lithos.2012.05.031
• 信心 1.0

  “cm-1 3.3 Hydrogen-related infrared absorption peak at 3107 cm-1 The hydrogen-related infrared absorption peak at 3107 has been assigned to the structure of three nitrogen atoms and a hydrogen atom surrounding a vacancy (VN 3H) [24].”

  Lai 等 - 2020 - Spectroscopic features of natural and HPHT-treated DOI: 10.1016/j.diamond.2019.107642
• Alkyl C-H 信心 1.0

  “2808-2806 C-H in CH3 stretching 3107 3109-3123 C-H aromatic stretching The main changes observed in Figure 4, as a consequence of the reaction of AZA with”

  Photodegradation of Azathioprine in the Presence of Sodium Thiosulfate DOI: 10.3390/ijms23073975
• Alkyl C-H 信心 1.0

  “The absorption peaks at gen impurity at 2850, 2920 and 3107 cm-1 sp3-CH 2are responsible for anti-symmetric vi2850 and 2920 sp3-CH 2symmetric vibrations in diamond, respectively brations and Fig.7.ThetypicalFTIRrecordedforthesynthesizeddiam”

  Yan 等 - 2016 - The effect of phosphorus and nitrogen co-doped on DOI: 10.1016/j.ijrmhm.2015.08.009
• C-S single bond 信心 1.0

  “υ(HC=N) γ(HC=N) υ(C=N) C-S-C C-O υH2O cm-1 The two bands at 3107, 3103, 3085, and 3100 and at 2979, 2984, 2974, and Compounds υ(Ln-S) υ(Ln-N) Imine Imine Thiazole Thiazole Furane Lattice cm-1 2986 are due to the asymmetric and symmetric str”

  Synthesis, Characterization and Biological Activities of New Schiff Base Compound and Its Lanthanide Complexes DOI: 10.3390/ph15040454
• Alkyl C-H 信心 1.0

  “and measuring in one place necessarily includes other cm-1 The peak at 3107 related to C-H vibrations is detected in most of the samples studied.”

  Mashkovtsev 等 - 2021 - Specific spectroscopic features of yellow cuboid d DOI: 10.3190/jgeosci.323
• Alkyl C-H 信心 1.0

  “The height (or area) of the band at 3107 cm-1, 58 considered as the major absorption band and related to a C-H bond in the N 3VH defect 59 [23,24], is used to estimate if a diamond is "H rich" [25].”

  Combination of ERDA, FTIR spectroscopy and NanoSIMS for the characterization of hydrogen incorporation in natural diamonds DOI: 10.1016/j.diamond.2023.110007