Apakah yang menyerap pada 1020 cm⁻¹ dalam spektrum FTIR?
Jalur berhampiran 1020 cm⁻¹ boleh menunjuk kepada beberapa kumpulan berfungsi. Di bawah adalah tugasan yang paling mungkin, disusun mengikut berapa banyak bukti yang diterbitkan menyokong setiap satu — setiap satu dapat dikesan ke literatur (DOI) dan disahkan silang terhadap 130,000+ spektrum rujukan dan graf pengetahuan kami.
Backed by 8 cited sources
Jawapan pantas
Jalur berhampiran 1020 cm⁻¹ biasanya ditafsirkan dengan memeriksa kumpulan berfungsi yang sering wujud bersama di sana dalam literatur, kemudian mengesahkan sekurang-kurangnya satu atau dua puncak tambahan dalam sampel yang sama. Halaman ini menyusun tugasan tersebut berdasarkan bukti terkumpul dan bukannya peraturan buku teks tetap tunggal.
Penetapan kumpulan berfungsi yang mungkin
| Kumpulan berfungsi | Fakta sokongan | Sumber dipetik | Keyakinan tertinggi |
|---|---|---|---|
| Methacrylate | 34 | 32 | 1.0 |
| Acetate | 34 | 32 | 1.0 |
| C-O single bond | 33 | 31 | 1.0 |
| Methoxy (OCH3) | 32 | 30 | 1.0 |
| Phosphate (PO4) | 15 | 13 | 1.0 |
| Hydroxyl (O-H) | 14 | 13 | 1.0 |
| Carbohydrate | 11 | 9 | 1.0 |
| Silicon-oxygen (Si-O) | 10 | 10 | 1.0 |
| Silicon (Si) | 9 | 9 | 1.0 |
| Siloxane (Si-O-Si) | 9 | 9 | 1.0 |
| Alkyl C-H | 8 | 7 | 1.0 |
| Carboxyl (COOH) | 7 | 7 | 1.0 |
| Phosphorus | 6 | 5 | 1.0 |
| Amide | 5 | 5 | 1.0 |
| Aromatic ring | 4 | 4 | 1.0 |
| C c single bond | 4 | 3 | 1.0 |
| Carbonate | 3 | 3 | 1.0 |
| Ring structure | 3 | 3 | 1.0 |
| Metal oxygen | 3 | 2 | 1.0 |
| Metal oxo | 3 | 1 | 1.0 |
| Ketone | 2 | 2 | 1.0 |
| Ester | 2 | 2 | 1.0 |
| Carbonyl (C=O) | 2 | 2 | 1.0 |
| C-S single bond | 2 | 2 | 1.0 |
| Water (H2O) | 2 | 2 | 1.0 |
| S eq o | 2 | 2 | 1.0 |
| Nitrogen heterocycle | 2 | 1 | 1.0 |
| Alkene (C=C) | 1 | 1 | 1.0 |
| Metal hydroxyl | 1 | 1 | 1.0 |
| Thiol | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 1.0 |
| Chlorine | 1 | 1 | 1.0 |
| N-O bond | 1 | 1 | 1.0 |
| Silicate | 1 | 1 | 1.0 |
| Protein | 1 | 1 | 1.0 |
| S s | 1 | 1 | 1.0 |
| Sulfonyl | 1 | 1 | 1.0 |
| Aldehyde (CHO) | 1 | 1 | 1.0 |
Peringkat mencerminkan bukti literatur terkumpul, bukan peraturan tetap tunggal. Sentiasa sahkan berdasarkan konteks sampel anda.
Bahan yang mungkin
| Bahan | Puncak sokongan | Kumpulan bertindih | Sumber dipetik |
|---|---|---|---|
| Silica | 1020, 1100, 1080 | Methacrylate, Acetate | 1 |
| TiO2 | 1020, 1700, 1093 | Methacrylate, Acetate, C-O single bond | 1 |
| starch | 1020, 1650, 1540 | Methacrylate, Acetate, C-O single bond | 1 |
| DNA | 1020, 1712, 1660 | Methacrylate, Acetate, C-O single bond | 1 |
| cells | 1020, 970, 1741 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
| silica nanoparticles | 1020, 1718, 2925 | Methacrylate | 1 |
Bahan hanya dipaparkan apabila kumpulan literatur yang sama menyokong jalur ini dan sekurang-kurangnya satu puncak ciri tambahan.
Logik spektrum
Jalur ini menjadi bermakna hanya apabila dibaca dengan puncak-puncak jirannya. Dalam amalan, penganalisis terlebih dahulu melihat tugasan di atas, kemudian menyemak sama ada sampel yang sama juga menunjukkan puncak lain yang dijangka untuk motif struktur yang sama. Jalur tunggal berhampiran 1020 cm⁻¹ biasanya tidak mencukupi untuk pengenalpastian bahan dengan sendirinya.
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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keyakinan 1.0
“In the fingerprint region, the wavenumbers 1020 and 1150 represent the asymmetric cm-1 cm-1 fingerprint region, the wavenumbers 1020 cm-1 and 1150 cm-1 represent the asymmetric stretching vibrations Si-O-Si.”
Biosynthesized Silica Nanosuspension as Thermal Fluid in Parabolic Solar Panels DOI: 10.3390/e23020142 -
Carbohydrate keyakinan 1.0
“The discernible peaks at 1020 have been C\\O assigned to the stretching vibrations of the bond in the starch's glucose ring [21].”
Gao 等 - 2021 - Synthetic mechanism of octenyl succinic anhydride DOI: 10.1016/j.ijbiomac.2021.01.082 -
Water (H2O) keyakinan 1.0
“At 14 days (Figure 4C), it is noteworthy that at depths of 2 and 3 mm, the level COO-), cm-1, presence of followed by another peak at 1020 which represents the presence of water absorption was lower (1636 cm-1), and the presence of the othe”
Remineralization Potential of Three Restorative Glass Ionomer Cements: An In Vitro Study DOI: 10.3390/jcm12062434 -
Aldehyde (CHO) keyakinan 1.0
“On the other hand, peak 3 cm-1 at 1020 of the TCHO region represents non-structural CHO such as starch [15].”
Gene-Transformation-Induced Changes in Chemical Functional Group Features and Molecular Structure Conformation in Alfalfa Plants Co-Expressing Lc-bHLH and C1-MYB Transcriptive Flavanoid Regulatory Genes: Effects of Single-Gene and Two-Gene Insertion DOI: 10.3390/ijms18030664 -
keyakinan 1.0
“the characteristic silica (Si-O) stretching vibrations of SMF appeared at 1020 Here, it is noteworthy that the bands present in cAB spectrum shifted to higher/lower wavenumbers in cSMFB”
Silico-manganese fumes waste encapsulated cryogenic alginate beads for aqueous environment de-colorization DOI: 10.1016/j.jclepro.2019.118867 -
Phosphate (PO4) keyakinan 1.0
“O-P-O (1080-1095 to investigate DNA and phospholipid damage following ionization vibration (1020 and symmetric at the single cell level.”
A new approach to studying the effects of ionising radiation on single cells using FTIR synchrotron microspectroscopy DOI: 10.1016/j.radphyschem.2013.03.037 -
C c single bond keyakinan 1.0
“The variable peak at 1020cm-1 110cm-1 is due to C-C-C in plane bending vibraThe peak at is due to the CH out of plane bending.”
Nagabalalsubramanian 等 - 2009 - A scaled quantum mechanical approach of vibrationa DOI: 10.1016/j.saa.2009.10.002 -
Acetate keyakinan 1.0
“cm-1, in Figure 4A shows bands at 1110, 1020, 944, and 905 case, however, no electron scavenger was added to the solution 1110-cm-1 of which the 1020and bands can be assigned to g Fe3+ because ions were unstable in pH 3, causing an C-O (Ti-”
Nakamura 和 Nakato - 2004 - Primary intermediates of oxygen photoevolution rea DOI: 10.1021/ja0388764CCC
Ada spektrum dengan jalur ini?
Muat naik spektrum FTIR anda dan dapatkan laporan tafsiran penuh — tugasan puncak dengan petikan literatur, padanan perpustakaan, dan analisis berasaskan literatur — dalam beberapa saat.