What absorbs at 1582 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 1582 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.

가능한 작용기 할당

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가능한 재료

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스펙트럼 로직

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 1582 cm⁻¹ is usually not enough for material identification by itself.

실제 사용

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일반적인 실수

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검증 조언

모호성이 남아 있는 경우, 특히 혼합물, 분해된 시료 및 충전 폴리머의 경우 DSC, GC-MS 또는 TGA로 가설을 검증하십시오.

이 할당의 배경이 되는 문헌

• Alkyl C-H 신뢰도 1.0

  “Gavira and coworkers observed a medium band at 1616 and a 2 cm-1 very weak peak at 1582 in the FTIR spectrum of cytidine 3'-monophosphate (3'-CMP) and assigned them to be the ribose C-H vibrations and in-plane base vibrations, respectively.”

  Peng 等 - 2011 - Anharmonic Vibrational Modes of Nucleic Acid Bases DOI: 10.1021/ja205636h
• 신뢰도 1.0

  “1649 C-N stretching and N-H bending vibration - - - 1582 1547 1542 of amide II”

  Sukprasert 等 - 2020 - Synchrotron FTIR Light Reveals Signal Changes of B DOI: 10.1155/2020/6149713
• Aromatic ring 신뢰도 1.0

  “In addition, weak peaks at 1582 and 1601 in spectrum (d) are indicative of aromatic components' ring stretching.”

  Evaluation of the Composition, Thermal and Mechanical Behavior, and Color Changes of Artificially and Naturally Aged Polymers for the Conservation of Stained Glass Windows DOI: 10.3390/polym15122595
• Aromatic ring 신뢰도 1.0

  “vibration aromatic ring 1582 (vw) 1585 (vw) skeletal [41] vibration δas (C-”

  De Sa 等 - 2021 - Tracing Poly(Vinyl Acetate) Emulsions by Infrared DOI: 10.3390/polym13213609
• Carbonyl (C=O) 신뢰도 1.0

  “The carbonyl and benzene ring stretching vibrations are exhibited at 1660 cm-1 and 1582 cm-1, respectively.”

  Regularities of Encapsulation of Tolfenamic Acid and Some Other Non-Steroidal Anti-Inflammatory Drugs in Metal-Organic Framework Based on -Cyclodextrin DOI: 10.3390/pharmaceutics15010071
• 신뢰도 1.0

  “The band at 1582 attributed to the bending vibration of N-H group has been confirmed in the investigation.”

  Haniffa 等 - 2019 - Synergistic effect of (3-Aminopropyl)Trimethoxysil DOI: 10.1016/j.polymdegradstab.2018.11.009
• C c single bond 신뢰도 1.0

  “FTIR: stretching, 1582.21 and 1506.57 for for 2 cm-1 cm-1 C- -C-H -NO stretching, 1334.50 stretching, 3093.43 for aromatic stretching, for aromatic stretching, 2”

  Manjare 等 - 2023 - Microwave-Assisted Rapid and Green Synthesis of Sc DOI: 10.1021/acsomega.2c05187
• Alkyl C-H 신뢰도 1.0

  “Also, the peak at 1582 corresponding to bending vibrations of C-H, faded away, indicating that the N-H bonds on cotton-g-PSMA were converted to N-Cl bonds during chlorination .”

  Peng 等 - 2021 - Grafted antimicrobial cotton fabrics with N-halami DOI: 10.21203/rs.3.rs-261084/v1