What absorbs at 2364 cm⁻¹ in an FTIR spectrum?
A band near 2364 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 6 cited sources
Jawapan pantas
A band near 2364 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 |
|---|---|---|---|
| Borate | 1 | 1 | 1.0 |
| Carbon dioxide | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Secondary amine | 1 | 0 | 1.0 |
| N h | 1 | 0 | 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 2364 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
-
Acetate keyakinan 1.0
“7c, partial decomposition of C-O bands at 2364 preparing the oxide materials, and are associated with metal oxide and cm-1 may describe the bonds in the octahedra sites [44,51].”
Low-temperature synthesis of Sr2FeMoO6 double perovskite; structure, morphology, and magnetic properties DOI: 10.1016/j.ceramint.2020.03.264 -
Aromatic ring keyakinan 1.0
“The weak bands at 2364 and of aromatic ring comand sharp strong peak at pound.”
Olajire 和 Mohammed - 2020 - Green synthesis of nickel oxide nanoparticles and DOI: 10.1016/j.apt.2019.10.012 -
Water (H2O) keyakinan 1.0
“Also, SeH weak bands associated with vibrations are also seen in the glass cm-1and~2332 cm-1.Inaddition,thebandabout samples at~2364 cm-1 ~1640 is observed which is related to the presence of water absorbed from air whilepelletizing samples”
Sharma 等 - 2017 - Impact of CuS on the crystallization kinetics of N DOI: 10.1016/j.jnoncrysol.2017.09.046 -
Hydroxyl (O-H) keyakinan 1.0
“band at 871 and broad band at 1414 This characteristic doublet recorded between cm-1 2334 and 2364 can be assigned to the stretching vibration of OH groups, and explained B.”
Colovic 等 - 2013 - Creating of Highly Active Calcium-Silicate Phases DOI: 10.2298/SOS1303341C -
Carbon dioxide keyakinan 1.0
“cm(cid:3)1 cm(cid:3)1) 2390-2250 tion bands in the (maxima at 2364 and 730-590cm(cid:3)1(maxima at669cm(cid:3)1) regionswere characteristic on bands of CO 2.”
Surface hardness and flammability of Na2SiO3 and nano-TiO2 reinforced wood composites DOI: 10.1039/c9ra05200c -
Borate keyakinan 1.0
“2371.2cm-1, trigonal The peaks at 2364.5 to are due to B-O symmetric stretching vibration in BO units from Pyro 3 bands15.”
Takai 等 - 2019 - Gamma Ray and FTIR Studies in Zinc Doped Lead Bora DOI: 10.1590/1980-5373-MR-2018-0404
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.