What absorbs at 2060 cm⁻¹ in an FTIR spectrum?
A band near 2060 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
Jawapan pantas
A band near 2060 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.
Penetapan kumpulan berfungsi yang mungkin
| Kumpulan berfungsi | Fakta sokongan | Sumber dipetik | Keyakinan tertinggi |
|---|---|---|---|
| Adsorbed carbon monoxide | 3 | 2 | 1.0 |
| C#c | 1 | 1 | 1.0 |
| Urea | 1 | 1 | 1.0 |
Pemeringkatan mencerminkan bukti literatur terkumpul, bukan satu peraturan berwibawa. Sentiasa sahkan terhadap konteks sampel anda.
Logik spektrum
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 2060 cm⁻¹ is usually not enough for material identification by itself.
Penggunaan dunia sebenar
Jenis pertanyaan ini biasa dalam pengenalpastian polimer, saringan plastik tidak diketahui, penyelesaian masalah QC, pengesahan bahan kitar semula, dan semakan tugasan puncak yang disokong oleh literatur.
Kesilapan biasa
- Menganggap satu jalur terpencil sebagai bukti bahan tanpa memeriksa sekurang-kurangnya satu atau dua puncak sokongan.
- Mengabaikan pertindihan: pelbagai kumpulan berfungsi boleh menyumbang berhampiran nombor gelombang yang sama.
- Melangkau pengesahan apabila bahan tambahan, campuran, pengoksidaan, atau pencemaran boleh memesongkan spektrum.
Nasihat pengesahan
Apabila kekaburan masih ada, sahkan hipotesis dengan DSC, GC-MS, atau TGA, terutamanya untuk campuran, sampel terdegradasi, dan polimer terisi.
Literatur di sebalik penetapan ini
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Urea keyakinan 1.0
“3458cm21 17 Local base lines for the urea peak at and the thiocyanate peak 2060cm21 2551cm21 07:56 at were drawn by hand using the points at 3711 and for 1930cm21 the urea peak and 2319 and for the thiocyanate peak, respectively.”
Furlan 等 - 2004 - FTIR analysis of mouse urine urea using IR cards DOI: 10.1081/SL-120038766 -
keyakinan 1.0
“Kadinov et found a new band at cm-1 cm-1 2030 using IR spectroscopy to study the CO adsorption (B) The peak at 2060 was also characteristic of the and coadsorption with H on 5% Ru/Al 2O and assigned it to a surface,33,34 Co(0001) which has”
Song 等 - 2007 - In situ diffuse reflectance FTIR study of CO adsor DOI: 10.1021/jp0751357 -
Adsorbed carbon monoxide keyakinan 1.0
“LLM confirmed rule peak-group candidate”
Surface Spectroscopy on UHV-Grown and Technological Ni–ZrO2 Reforming Catalysts: From UHV to Operando Conditions DOI: 10.1007/s11244-016-0678-8 -
Adsorbed carbon monoxide keyakinan 1.0
“cm-1 2070 will be unambiguously attributed to Another band, around 2060 may be attributed to CO adsorbed on Pt alloyed with Rh, according to Lévy et al.[5].”
Controlled preparation and characterization of Pt-Rh/Al2O3 bimetallic catalysts for reactions in reducing conditions DOI: 10.1016/j.apcata.2016.02.024 -
C#c keyakinan 1.0
“At peak with wave numbers 2140.99 cm-1 and 2059.98 , corresponds to the absorption caused by the triple bonds of C≡C (alkaline type cm-1”
Maulida 等 - 2018 - Utilization of mango seed starch in manufacture of DOI: 10.1088/1748-0221/5/10/P10010/pdf -
keyakinan 0.95
“Explicit assignment: 'band at 2060 H-Si-O'”
Haiss 等 - 2006 - Surface termination and hydrogen bubble surfaces d DOI: 10.1016/j.jelechem.2006.07.027 -
keyakinan 0.8
“Same as above.”
Upgrading the PtCu intermetallic compounds: The role of Pt and Cu in the alloy DOI: 10.1016/j.cattod.2019.11.026 -
keyakinan 0.8
“High-frequency stretching mode of carbon-nitrogen complex”
Kuenneth 等 - 2018 - Symmetry and structure of carbon-nitrogen complexe DOI: 10.1088/1367-2630/14/5/053020
Ada spektrum dengan jalur ini?
Muat naik spektrum FTIR anda dan dapatkan laporan tafsiran penuh — penetapan puncak dengan petikan literatur, padanan perpustakaan, dan rantaian bukti berkadar keyakinan — dalam beberapa saat.