What absorbs at 1007 cm⁻¹ in an FTIR spectrum?
A band near 1007 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 1007 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 |
|---|---|---|---|
| Siloxane (Si-O-Si) | 3 | 3 | 1.0 |
| Silicon-oxygen (Si-O) | 3 | 3 | 1.0 |
| Silicon (Si) | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| Ketone | 2 | 2 | 1.0 |
| Ester | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| Carbonyl (C=O) | 2 | 2 | 1.0 |
| Amide | 2 | 2 | 1.0 |
| Methacrylate | 2 | 2 | 1.0 |
| C-O single bond | 2 | 2 | 1.0 |
| Acetate | 2 | 2 | 1.0 |
| Aromatic ring | 2 | 2 | 1.0 |
| Phosphate (PO4) | 2 | 2 | 1.0 |
| Metal hydroxyl | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| C-S single bond | 1 | 1 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| Sulfate (SO4) | 1 | 1 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Metal oxo | 1 | 1 | 1.0 |
Pemeringkatan mencerminkan bukti literatur terkumpul, bukan satu peraturan berwibawa. Sentiasa sahkan terhadap konteks sampel anda.
Bahan yang mungkin
| Bahan | Puncak sokongan | Kumpulan bertindih | Sumber dipetik |
|---|---|---|---|
| glucose | 1007, 1740, 1400 | Hydroxyl (O-H) | 1 |
| TiO2 | 1007, 1700, 1093 | Hydroxyl (O-H) | 1 |
| biochar | 1007, 1640, 1115 | Hydroxyl (O-H) | 1 |
Bahan hanya dipaparkan apabila kumpulan literatur yang sama menyokong jalur ini dan sekurang-kurangnya satu puncak ciri tambahan.
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 1007 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
-
Metal oxo keyakinan 1.0
“LLM confirmed rule peak-group candidate”
Optical and structural characterization of quadruplet and quintuplet molybdenum-containing phosphate glasses DOI: 10.1142/S0217984916502705 -
Water (H2O) keyakinan 1.0
“l cm-1 (cid:1)C, "degenerate" between 200 and 300 phosphoric acid undergoes condensa- [P(OH) very strong bands at 1007 and 1165 3 43tion reactions with loss of water molecules, leading to the stretching mode of PO ], a weak band at and PO s”
Yi 等 - 2011 - Phosphine Adsorption Removal from Yellow Phosphoru DOI: 10.1021/ie101622x -
C-O single bond keyakinan 1.0
“Peak was observed at 1006.7 of smooth and non-homogeneous surface, while the 6b the the C-OH stretch vibration within the cellulosic structure.”
Nanobiocatalyst beds with Fenton process for removal of methylene blue DOI: 10.1007/s13201-021-01367-8 -
Sulfate (SO4) keyakinan 1.0
“The characteristic peaks at 1131 and cm-1 1007 correspond to the stretching vibration of sulfate (-S = O).”
Development of New Amphiphilic Catalytic Steam Additives for Hydrothermal Enhanced Oil Recovery Techniques DOI: 10.3390/catal12080921 -
Aromatic ring keyakinan 1.0
“However, the representative peaks for aromatic carbon ap1007/s11356-013-1659-0.”
Simultaneous immobilization of heavy metals in soil environment by pulp and paper derived nanoporous biochars DOI: 10.1007/s40201-018-0294-6 -
Siloxane (Si-O-Si) keyakinan 1.0
“Part of doublet assigned to Si-O-Si.”
Bao 等 - 2018 - Manufacturing and characterization of long-acting DOI: 10.1016/j.ijpharm.2018.09.004. -
Silicon (Si) keyakinan 1.0
“the one located at 1089 cm-1 in MK to 1007 cm-1 due to the asymmetric stretching of the Si-O-T band”
Metakaolin-Based Geopolymer with Added TiO2 Particles: Physicomechanical Characteristics DOI: 10.3390/coatings7120233 -
Carbohydrate keyakinan 1.0
“2, however, the contribution of glucose cannot be neglected, especially due to the bands at 1007, 1045, 1072 and cm-1.”
Leopold 等 - 2011 - Quantification of carbohydrates in fruit juices us DOI: 10.3233/SPE-2011-0529
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.