C=n — FTIR absorption peaks and assignments
These are the characteristic FTIR wavenumbers where C=n tends to absorb, compiled from published literature and ranked by supporting evidence. Each assignment is traceable to a source (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
Characteristic FTIR peaks for C=n
| 波數（cm⁻¹） | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| 1640 | 4 | 4 | 1.0 |
| 1630 | 4 | 3 | 0.9 |
| 1591 | 3 | 3 | 1.0 |
| 1530 | 3 | 3 | 0.95 |
| 1600 | 3 | 3 | 0.95 |
| 1594 | 3 | 3 | 0.9 |
| 1620 | 3 | 3 | 0.9 |
| 1618 | 3 | 3 | 0.9 |
| 1636 | 2 | 2 | 1.0 |
| 1567 | 2 | 2 | 1.0 |
| 1570 | 2 | 2 | 1.0 |
| 1593 | 2 | 2 | 1.0 |
| 1597 | 2 | 2 | 0.9 |
| 1580 | 2 | 2 | 0.9 |
| 1700 | 2 | 2 | 0.7 |
| 1602 | 2 | 1 | 0.9 |
| 1250 | 1 | 1 | 1.0 |
| 1538 | 1 | 1 | 1.0 |
| 1534 | 1 | 1 | 1.0 |
| 1697 | 1 | 1 | 1.0 |
| 1619 | 1 | 1 | 1.0 |
| 1551 | 1 | 1 | 1.0 |
| 2322 | 1 | 1 | 1.0 |
| 1490 | 1 | 1 | 1.0 |
| 1604 | 1 | 1 | 1.0 |
| 1413 | 1 | 1 | 0.95 |
| 1606 | 1 | 1 | 0.95 |
| 920 | 1 | 1 | 0.9 |
| 1635 | 1 | 1 | 0.9 |
| 1648 | 1 | 1 | 0.9 |
Showing the 30 best-supported peaks of 90 total for C=n.
這些指派背後的文獻
-
1604 cm⁻¹ 信心 1.0
“stretching at 1604 cm-1 represents C=N (imine) group”
Yusoff 等 - 2018 - Theoretical and Experimental Approach Towards P-Cy DOI: 10.1088/1757-899X/374/1/012086 -
1570 cm⁻¹ 信心 1.0
“Associated with C=N and C=C stretching vibrations of quinone and benzene rings.”
Abdolahi 等 - 2012 - Synthesis of Uniform Polyaniline Nanofibers throug DOI: 10.3390/ma5081487 -
2322 cm⁻¹ 信心 1.0
“Explicit assignment in text”
Ahmed 等 - 2023 - Design and Characterization of Baricitinib Incorpo DOI: 10.3390/polym15081825 -
1551 cm⁻¹ 信心 1.0
“C=N stretching.”
Cossolin 等 - 2019 - DOI: 10.4136/1980-993X -
1619 cm⁻¹ 信心 1.0
“Assigned to νC=N functional group in the ring.”
Farooq 等 - 2018 - SYNTHESIS, STRUCTURAL AND PHOTO-PHYSICAL STUDIES O DOI: 10.4314/bcse.v32i3.7 -
1697 cm⁻¹ 信心 1.0
“Explicit assignment in text”
Gouda 等 - 2022 - Fabrication of Chitosan Nanofibers Containing Some DOI: 10.3390/polym14102094 -
1591 cm⁻¹ 信心 1.0
“Explicit assignment in text”
Graur 等 - 2023 - Novel Copper(II) Complexes with N-4,S-Diallylisoth DOI: 10.3390/inorganics11050195 -
1570 cm⁻¹ 信心 1.0
“Explicit assignment in text: 'C=N stretch (1570 cm-1)'”
Gupta 等 - 2013 - Bioadhesive vaginal tablets containing spray dried DOI: 10.2478/acph-2013-0027
See C=n in your own spectrum
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