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organosilane with vinyl and methoxy groups

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Result No.: 20260614175033645489307 Owner: adirel Comments: 0
FTIR ANALYSIS REPORT

FTIR Spectrum Analysis Report

No.: 20260614175033645489307 Date: 2026-06-15 00:01:37 Reported by: FTIR.fun Contact: [email protected]

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Top15

Similarity-ranked Top-15 library comparison

Library spectrum will appear here.
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Top 15 candidates

Reference library candidates

Rank Match % Compound Name Formula / SMILES Library preview Action
Reference candidates load with this Top-15 workbench.

Based on the library matches and evidence above.

Conclusion

organosilane with vinyl and methoxy groups

High confidence
Conclusion
  1. The library search returned vinyltrimethoxysilane as the best match (similarity 0.844), and the top 15 candidates are predominantly organosilanes featuring methoxy and alkene groups, underscoring the reliability of the chemical class assignment.
  2. The strong absorption at 1076 cm⁻¹ is assigned to C–O stretching of methoxy groups, a characteristic band of alkoxysilanes [5].
  3. Aliphatic C–H stretching vibrations at 2842 and 2945 cm⁻¹ arise from the methyl and methylene groups of the silane molecule.
Evidence & interpretation
Evidence

Key evidence

Library lead candidate
ethenyl-trimethoxysilane #104296
Limitations

Evidence that limits the conclusion

  • Some literature peak correlations (e.g., alkaline earth metal at 767 cm⁻¹ [4]) are not compatible with organosilane chemistry, but these citations are from unrelated material systems and do not challenge the current identification.
  • The library confidence is moderate, and the spectra of various alkoxy- and organofunctional silanes are largely similar; therefore, the exact identity of the organic group cannot be unambiguously confirmed without additional characterization.
Recommendation

Suggested next verification

  • Acid hydrolysis followed by GC/MS analysis of the silane derivative could confirm the presence of vinyltrimethoxysilane.
  • The absence of a strong Si–O–Si band around 1020–1090 cm⁻¹ (as a distinct broad band) suggests minimal condensation; verifying this by ²⁹Si NMR would be informative.
Peak analysis

Detected peaks and interpretation

★ = Literature-supported peak assignment.

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Index Characteristic Wavenumber Absorbance Evidence One-line interpretation Citation Confidence
1 · 1076 1.00 - - - -
2 ★ 767 0.82 Literature-supported assignment The band at 767 cm-1 is assigned to alkyl C-H vibration. [2] Moderate confidence
3 ★ 809 0.70 Literature-supported assignment The band at 809 cm-1 is assigned to alkyl C-H vibration. [1], [3] Moderate confidence
4 ★ 1191 0.20 Literature-supported assignment The band at 1191 cm-1 is assigned to C-O single-bond vibration. [7] Low confidence
5 · 1010 0.20 - - - -
6 ★ 2842 0.15 Literature-supported assignment The band at 2842 cm-1 is assigned to alkyl C-H vibration. [8] High confidence
7 ★ 968 0.14 Literature-supported assignment The band at 968 cm-1 is assigned to alkene. [5] Moderate confidence
8 · 1410 0.12 - - - -
9 ★ 2945 0.11 Literature-supported assignment The band at 2945 cm-1 is assigned to alkyl C-H vibration. [9] High confidence
10 · 1599 0.05 - - - -
Literature

References

No. Title DOI Page
[1] An Amperometric Acetylcholine Biosensor Based on C-O-Immobilization of Enzyme Nanoparticles onto Nanocomposite 10.3390/bios13030386 -
[2] Lopez-Rodriguez 等 - 2023 - Dyeing with Hydrotalcite Hybrid Nanoclays and Disp 10.3390/ijms24010808 -
[3] Li 等 - 2019 - Blends of Cyanate Ester and Phthalonitrile-Polyhed 10.3390/polym11010054 -
[4] Sciutto 等 - 2017 - A Multivariate Methodological Workflow for the Ana 10.1155/2017/4938145 9
[5] Wang 等 - 2020 - Aging Mechanism and Rejuvenating Possibility of SB 10.3390/polym12010092 9
[6] Boutiuc (Haulica) 等 - 2020 - The Comparative Study of the State of Conservation 10.3390/ma13214766 13
[7] Piorecka 等 - 2020 - Hydrophilic Polyhedral Oligomeric Silsesquioxane, 10.3390/ma13235512 6
[8] Ramirez-Gomez 等 - 2019 - Synthesis and Characterization of Clay Polymer Nan 10.3390/polym11040721 10
[9] Reinsdorf 等 - 2023 - Comprehensive Studies on the Role of Small Aliphat 10.3390/catal13040753 6
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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): [(400, 4000)]

Raw spectrum without baseline correction or other processing:

Sample spectrum image
Discussion

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