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aromatic / amide

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Số kết quả: 20260211051512040343330 Chủ sở hữu: sjh Bình luận: 0
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FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20260211051512040343330 Date: Reported by: FTIR.fun Contact: [email protected]

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Based on the library matches and evidence above.

Conclusion

aromatic / amide

Library direction
Độ tin cậy tổng thể
#16203 Initial rank 1 Current rank 1 Library lead match 74.7%
Conclusion
  1. Direct literature evidence assigns the 1416 cm⁻¹ band to aromatic C–C stretching [7] and the 1290 cm⁻¹ band to C–O stretching [2], reinforcing the proposed ester/ether framework.
  2. The cited report assigns the 1096 cm⁻¹ region to ν(COC) vibrations, consistent with ether functionalities [40].
  3. The strong band at 1734 cm⁻¹ corresponds to carbonyl (C=O) stretching, typical of carboxylic acid esters or acids [1].
Main limitation

A band at 956 cm⁻¹ is literature-attributed to metal‑oxo vibrations [6], and a signal at 1180 cm⁻¹ is assigned to fluorine-containing moieties [4]; these features are not expected in a maleic acid copolymer and may indicate inorganic contamination or sample heterogeneity.

Evidence & interpretation
Evidence

Key evidence

Kết quả khớp hàng đầu từ thư viện
Poly(methyl vinyl ether:maleic acid) #16203 | match 74.7%
Hướng vật liệu
aromatic / amide The FTIR spectrum is most consistent with an oxygen-rich polymer material featuring carbonyl (ester/carboxylic acid), ether, aliphatic, and aromatic/amide moieties, best matches to Poly(methyl vinyl ether:maleic acid) in the library with moderate confidence.
Supporting peaks
669 cm-1 730 cm-1 802 cm-1 956 cm-1 1096 cm-1 1132 cm-1 1180 cm-1 1257 cm-1
Supporting groups
aromatic methyl n_h ring ring_6m oxygen ether c_o_c
Support

Evidence supporting the conclusion

Only sample-relevant statements that support the present conclusion are shown here.

  1. The FTIR spectrum is most consistent with an oxygen-rich polymer material featuring carbonyl (ester/carboxylic acid), ether, aliphatic, and aromatic/amide moieties, best matches to Poly(methyl vinyl ether:maleic acid) in the library with moderate confidence.
  2. Direct literature evidence assigns the 1416 cm⁻¹ band to aromatic C–C stretching [7] and the 1290 cm⁻¹ band to C–O stretching [2], reinforcing the proposed ester/ether framework.
  3. The cited report assigns the 1096 cm⁻¹ region to ν(COC) vibrations, consistent with ether functionalities [40].
  4. The strong band at 1734 cm⁻¹ corresponds to carbonyl (C=O) stretching, typical of carboxylic acid esters or acids [1].
  5. The intense absorbance near 1096 cm⁻¹ is assigned to ν(COC) asymmetric/symmetric stretching in PEO-PVC electrolyte systems [40], indicative of ether linkages.
  6. Aliphatic C–H stretching bands at 2846, 2913, and 2944 cm⁻¹, together with deformation bands near 1367 cm⁻¹ [8] and 1416 cm⁻¹, confirm the presence of alkyl chains.
  7. Aromatic C–H stretching at 3031 cm⁻¹ and skeletal modes at 1557 and 1472 cm⁻¹ indicate aromatic ring contributions, while the 1637 cm⁻¹ band is consistent with amide I vibrations [2].
  8. Bands at 1257 and 1290 cm⁻¹ are attributable to C–O stretching vibrations, further supporting ester/ether structures [2].
  9. Major peak assignments include 1096: Related literature: ν(C-O-C) ether stretch | Direct reference: c o single bond; alkyl c h | Quality: The spectrum edges look truncated or baseline-shifted; 1180: Direct reference: c o single bond; alkyl c h | Quality: The spectrum edges look truncated or baseline-shifted; 1132: Direct reference: c o single bond; alkyl c h | Quality: The spectrum edges look truncated or baseline-shifted; 802: Related literature: Si-O-Si / siloxane potential | Direct reference: c o single bond; alkyl c h | Quality: The spectrum edges look truncated or baseline-shifted.
Limitations

Evidence that limits the conclusion

  • A band at 956 cm⁻¹ is literature-attributed to metal‑oxo vibrations [6], and a signal at 1180 cm⁻¹ is assigned to fluorine-containing moieties [4]; these features are not expected in a maleic acid copolymer and may indicate inorganic contamination or sample heterogeneity.
  • The broad N–H/O–H absorption envelope between 3000 and 3600 cm⁻¹ and the possible amide bands at 1637 and 1557 cm⁻¹ suggest the presence of nitrogen-containing functional groups, which are absent in the top library hit; the material may be a modified, contaminated, or more complex polymer system.
  • Library confidence is moderate (75%), and the direction label ‘aromatic / amide’ reflects the need for a broader classification given the mixed evidence.
Recommendation

Suggested next verification

  • Acquire complementary data (e.g., Raman spectroscopy, elemental analysis, or thermal analysis) to clarify the nature of the nitrogen-containing and inorganic components.
  • Perform a hydrolysis experiment to verify the presence of maleic acid units and assess the polymer backbone.
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 ★ 1096 1.00 Gán hỗ trợ bởi tài liệu Dải tại 1096 cm-1 được gán cho ν(C-O C) ether stretch[40]. [40] Độ tin cậy LLM
2 · 1180 0.99 - - - -
3 ★ 1132 0.91 Gán hỗ trợ bởi tài liệu Dải tại 1132 cm-1 được gán cho C-O bonds in ether[10]. [10] Độ tin cậy tổng thể
4 · 802 0.73 - - - -
5 · 669 0.71 - - - -
6 ★ 1734 0.65 Gán văn học tương tự Dải tại 1734 cm-1 được gán cho Carbonyl (C=O) stretch[42][S5]. [42], [S5] Độ tin cậy LLM
7 ★ 1257 0.65 Gán hỗ trợ bởi tài liệu Dải tại 1257 cm-1 được gán cho C-O single bond[44]. [44] Độ tin cậy tổng thể
8 · 956 0.62 - - - -
9 · 730 0.62 - - - -
10 ★ 1557 0.59 Gán văn học tương tự Dải tại 1557 cm-1 được gán cho C=C aromatic ring stretch / N-H bend[41]. [41] Độ tin cậy tổng thể
11 ★ 1416 0.51 Gán hỗ trợ bởi tài liệu Dải tại 1416 cm-1 được gán cho aromatic C-C[7]. [7] Độ tin cậy LLM
12 ★ 1367 0.47 Gán hỗ trợ bởi tài liệu Dải tại 1367 cm-1 được gán cho methyl[39]. [39] Độ tin cậy tổng thể
13 · 1472 0.44 - - - -
14 ★ 1290 0.44 Gán hỗ trợ bởi tài liệu Dải tại 1290 cm-1 được gán cho C-O single bond[2]. [2] Độ tin cậy tổng thể
15 ★ 1637 0.41 Gán hỗ trợ bởi tài liệu Dải tại 1637 cm-1 được gán cho amide[47]. [47] Độ tin cậy tổng thể
16 ★ 2846 0.34 Gán hỗ trợ bởi tài liệu Dải tại 2846 cm-1 được gán cho alkyl C-H[46]. [46] Độ tin cậy LLM
17 ★ 2913 0.27 Gán hỗ trợ bởi tài liệu Dải tại 2913 cm-1 được gán cho alkyl C-H[45]. [45] Độ tin cậy LLM
18 · 2372 0.24 - - - -
19 · 3279 0.22 - - - -
20 · 3296 0.22 - - - -
21 · 2503 0.21 - - - -
22 · 3429 0.21 - - - -
23 · 3316 0.21 - - - -
24 · 2760 0.21 - - - -
25 · 3540 0.21 - - - -
26 · 3190 0.21 - - - -
27 · 2738 0.20 - - - -
28 · 3136 0.20 - - - -
29 · 3465 0.20 - - - -
30 · 3238 0.20 - - - -
31 · 3562 0.20 - - - -
32 · 3747 0.20 - - - -
33 · 3397 0.20 - - - -
34 · 3172 0.19 - - - -
35 · 3671 0.19 - - - -
36 ★ 3031 0.19 Gán hỗ trợ bởi tài liệu Dải tại 3031 cm-1 được gán cho Aromatic/olefinic C-H stretch[41]. [41] Độ tin cậy LLM
37 · 3604 0.18 - - - -
38 · 3988 0.18 - - - -
39 · 2978 0.18 - - - -
40 · 3864 0.18 - - - -
41 · 3798 0.17 - - - -
42 · 3821 0.17 - - - -
43 · 3655 0.17 - - - -
44 · 3898 0.17 - - - -
45 · 3941 0.17 - - - -
46 · 3763 0.17 - - - -
47 · 3703 0.17 - - - -
48 · 2944 0.12 - - - -
Literature

References

2024 local KG peak-level literature source(s) kept in the candidate pool; peaks 669, 730, 802, 956, 1096, 1132; groups 4_ring_breathing_mode, >n_h, [alo4]_tetrahedral, absorbed_atmospheric_water.

No. Title DOI Page
[1] Chaparro 等 - 2023 - Biowaxes from Palm Oil as Promising Candidates for 10.3390/ma16124402 -
[2] Zhang 等 - 2021 - Immobilization of Glycogen Synthase Kinase-3 beta 10.3389/fbioe.2021.806151 -
[3] Wang 等 - 2016 - Effects of aging on the structural, mechanical, an 10.1186/s40064-016-2549-y -
[4] Ramadan 和 Ismail - 2022 - Tunning the Physical Properties of PVDFPVCZinc F 10.21203/rs.3.rs-935328/v1 -
[5] Omar 等 - 2023 - Investigation of morphological, structural and ele 10.1007/s11082-023-04663-6 -
[6] Nagaraju - 2013 - Ultra Long Single Crystalline Na0.3V2O5 Nanofibers 10.5935/0103-5053.20130213 -
[7] Muresan-Pop 等 - 2011 - Spectroscopic and physical-chemical characterizati 10.3233/spe-2011-0519 -
[8] Meade 等 - 2007 - Growth substrate induced functional changes elucid 10.1007/s00216-006-0876-5 -
[9] Fedorkova 等 - 2018 - Synthesis and Characterization of Porous SulfurMW 10.20964/2018.01.67 -
[10] Arabyarmohammadi 等 - 2018 - Simultaneous immobilization of heavy metals in soi 10.1007/s40201-018-0294-6 -
[11] Al Jedani 等 - 2020 - A de-waxing methodology for scanning probe microsc 10.1039/d0ay00965b -
[12] Abdolahi 等 - 2012 - Synthesis of Uniform Polyaniline Nanofibers throug 10.3390/ma5081487 -
[13] pdf20231221 cm-1 infrared 第一部分/cordeiro 等 - 1998 - cork suberin as a new source of chemicals. 1. isol.pdf - -
[14] Lee 等 - 2019 - Adsorption properties of arsenic on sulfated TiO2 10.1016/j.jiec.2019.08.024 -
[15] Zhai 等 - 2020 - Preparation, Characterization of Propargyl Termina 10.3390/polym12040748 -
[16] Wang 等 - 2018 - A Comparison of Palladium Sorption Using Polyethyl 10.3390/app8020264 -
[17] Torrisi 等 - 2023 - Ultra-High Molecular Weight Polyethylene Modificat 10.3390/polym15051169 -
[18] Szostak 等 - 2019 - Nanoscale mapping of chemical composition in organ 10.1126/sciadv.aaw6619 -
[19] Rozman 等 - 2021 - Optimisation of Stingless Bee Honey Nanoemulsions 10.3390/foods10092133 -
[20] Rozi 等 - 2016 - Characterization of Ultraviolet-Photocured Acrylam 10.1063/1.4966755 -
[21] Rangayasami 等 - 2020 - Bioengineered silver nanoparticles using Elytraria 10.1016/j.bcab.2020.101690 -
[22] Pinto Cotrim 等 - 2016 - Preparation of beta-CyclodextrinLatex Dispersion 10.7569/jrm.2015.634122 -
[23] Moakes 等 - 2006 - Solvation dynamics of lithium salts in wet nitrobe 10.1016/j.jelechem.2006.03.028 -
[24] Mahto 和 Mishra - 2022 - The removal of textile industrial Dye-RB-19 using 10.1007/s00289-021-03663-4 -
[25] Litvak 等 - 2018 - On-line in situ determination of deuterium content 10.1039/c8ra03312a -
[26] Lee 等 - 2008 - Surface-initiated ring-opening polymerization of p 10.1002/pola.22457 -
[27] Jaleh 等 - 2015 - Characteristics of PVDF Membranes Irradiated by El 10.3390/membranes5010001 -
[28] Jaggy 等 - 2020 - ATR-FTIR Analysis and One-Week Stress Relaxation o 10.3390/ma13081868 -
[29] Ilic-Stojanovic 等 - 2018 - Thermosensitive hydrogels for modified release of 10.1080/00914037.2017.1354202 -
[30] El-Shekeil 等 - 2012 - Effect of pMDI isocyanate additive on mechanical a 10.1177/0021998310385030 -
[31] Amin 等 - 2022 - Spectroscopic and Physicochemical Investigations o 10.3390/ma15207197 -
[32] Akram 等 - 2022 - Impact of Diisocyanates on Morphological and In Vi 10.3390/polym14173701 -
[33] Akram 等 - 2021 - Influence of Graphene Oxide Contents on Mechanical 10.3390/polym -
[34] Ahuja 等 - 2021 - A comparative study on silicon nitride, titanium a 10.1002/mds3.10139 -
[35] pdf20231221 cm-1 infrared 第一部分/cakic 等 - 2006 - spectroscopic characteristics of highly selective .pdf - -
[36] 0816 ftir cm_1 peak wos/nishimura 和 thomas - 1993 - ir study of the interaction of hydroxyl-groups of .pdf - -
[37] Negri 等 - 2018 - Investigating the Low Temperature Formation of Cu- 10.1002/chem.201802769 -
[38] Dams 等 - 2006 - Plasma deposition of thiophene derivatives under a 10.1002/cvde.200606483 -
[39] Qin 等 - 2020 - Synthesis and properties of soluble polyimides con 10.1177/0954008320906602 -
[40] Arya 和 Sharma - 2018 - Structural, microstructural and electrochemical pr 10.1007/s11581-017-2364-7 46
[41] Arjunan 等 - 2012 - Quantum chemical studies and vibrational analysis 10.1016/j.saa.2012.08.053 9
[42] Kert 等 - 2021 - Application of Fragrance Microcapsules onto Cotton 10.3390/coatings11101181 13
[43] Sciutto 等 - 2017 - A Multivariate Methodological Workflow for the Ana 10.1155/2017/4938145 5
[44] Toeri 等 - 2017 - Preparation and ChemicalMicrostructural Character 10.3390/ma10040400 6
[45] Zhai 等 - 2020 - Preparation, Characterization of Propargyl Termina 10.3390/polym12040748 3
[46] Torrisi 等 - 2023 - Ultra-High Molecular Weight Polyethylene Modificat 10.3390/polym15051169 5
[47] Ono 等 - 2021 - Encapsulation of Lactoferrin for Sustained Release 10.3390/pr9010073 7
Appendix

Sample information and raw spectrum

Original uploaded spectrum for reference and verification.

Baseline correction method: Asymmetric Least Squares Smoothing

The wavelength range for analysis(cm-1): N/A

Raw spectrum without baseline correction or other processing:

Sample spectrum image
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