N c o — Puncak serapan FTIR dan tugasan
Ini ialah nombor gelombang FTIR ciri apabila N c o cenderung menyerap, yang dihimpunkan daripada literatur yang diterbitkan dan diperingkat berdasarkan bukti sokongan. Setiap penetapan boleh dijejaki kepada sumber (DOI) dan disahkan silang terhadap 320,000+ spektrum rujukan serta graf pengetahuan kami.
Disokong oleh 8 sumber yang dipetik
Jawapan pantas
N c o biasanya ditetapkan dengan mencari kelompok berulang puncak ciri dan bukan satu nombor tepat buku teks. Jadual di bawah menunjukkan di mana literatur paling kerap meletakkan kumpulan ini dalam FTIR, yang disusun mengikut bukti terkumpul.
Puncak FTIR ciri untuk N c o
| Nombor gelombang (cm⁻¹) | Fakta sokongan | Sumber dipetik | Keyakinan tertinggi |
|---|---|---|---|
| 2270 | 18 | 17 | 1.0 |
| 2260 | 4 | 4 | 1.0 |
| 2262 | 3 | 3 | 1.0 |
| 2272 | 2 | 2 | 1.0 |
| 2266 | 2 | 2 | 0.9 |
| 2360 | 1 | 1 | 1.0 |
| 1032 | 1 | 1 | 1.0 |
| 3287 | 1 | 1 | 1.0 |
| 473 | 1 | 1 | 1.0 |
| 2251 | 1 | 1 | 1.0 |
| 1159 | 1 | 1 | 1.0 |
| 2253 | 1 | 1 | 1.0 |
| 2273 | 1 | 1 | 1.0 |
| 2276 | 1 | 1 | 1.0 |
| 1634 | 1 | 1 | 1.0 |
| 2300 | 1 | 1 | 1.0 |
| 1180 | 1 | 1 | 1.0 |
| 2252 | 1 | 1 | 1.0 |
| 3436 | 1 | 1 | 1.0 |
| 1016 | 1 | 1 | 1.0 |
| 1106 | 1 | 1 | 1.0 |
| 1700 | 1 | 1 | 1.0 |
| 3330 | 1 | 1 | 1.0 |
| 1735 | 1 | 1 | 1.0 |
| 1628 | 1 | 1 | 1.0 |
| 3473 | 1 | 1 | 1.0 |
| 1285 | 1 | 1 | 1.0 |
| 1313 | 1 | 1 | 1.0 |
| 964 | 1 | 1 | 1.0 |
| 1730 | 1 | 1 | 1.0 |
Menunjukkan 30 puncak terbaik disokong daripada 36 jumlah untuk N c o.
Logik spektrum
Tugasan kumpulan berfungsi menjadi lebih yakin apabila beberapa jalur yang dijangkakan muncul bersama. Gunakan halaman ini untuk mencari puncak yang paling disokong, kemudian sahkan bahawa sampel yang sama menunjukkan corak yang koheren dan bukannya satu hit terpencil.
Penggunaan dunia sebenar
Halaman-halaman ini berguna untuk analisis bahan yang tidak diketahui, penjelasan puncak dalam laporan, penyelesaian masalah polimer, dan mengesahkan sama ada keluarga bahan calon adalah boleh dipercayai secara kimia.
Kesilapan biasa
- Menggunakan satu halaman kumpulan berfungsi sebagai keputusan bahan lengkap tanpa memeriksa spektrum yang lain.
- Dengan menganggap jalur yang paling kuat sentiasa menjadi yang paling diagnostik.
- Melupakan bahawa pemprosesan, bahan tambahan, penuaan, dan campuran boleh mengalihkan atau melebarkan puncak yang dijangkakan.
Nasihat pengesahan
Gunakan DSC, GC-MS, atau TGA apabila beberapa keluarga bahan berkongsi jalur yang serupa atau apabila kesan campuran menyebabkan tugasan FTIR tidak pasti.
Literatur di sebalik penetapan ini
-
2270 cm⁻¹ keyakinan 1.0
“troscopy is from the disappearance of the NCO peak at 2270 still observed even after 7 days of RT curing followed by 545 h 50◦C composition, time for complete cure, hard segment content curing at at 25% RH.”
Hydrogen bonding and thermomechanical properties of model polydimethylsiloxane based poly(urethane-urea) copolymers: Effect of hard segment content DOI: 10.1016/j.porgcoat.2015.06.015 -
2262 cm⁻¹ keyakinan 1.0
“LLM confirmed rule peak-group candidate”
Preparation of one-shot and two-shot method of semi-rigid polyurethane film based on functionalized liquid natural rubber DOI: 10.1063/1.5047200 -
3317 cm⁻¹ keyakinan 1.0
“peak at 3317 and disappearance of the NCO peak at 2295 The semirigid PU with low rubber polyol chain favored solubility in non-polar solvent (toluene and chloroform) and low polar solvent (THF).”
The behavior of semi-rigid polyurethane film based on functionalized rubber by one-shot and two-shot method preparation DOI: 10.1007/s10853-018-2578-8 -
2280 cm⁻¹ keyakinan 1.0
“LLM confirmed rule peak-group candidate”
Mechanical Properties of Palm Oil Polyol based Polyurethane Foam Reinforced Wollastonite Clay DOI: 10.1088/1742-6596/1082/1/012041 -
1730 cm⁻¹ keyakinan 1.0
“The formation of urea linkages at 1640 which occur increasing NCO/OH ratio, and its occurrences after 1730 cm-1 revealed that a high earlier as revealed by the 2D-COS study, suggests the significant side reactions between NCO/OH ratio induc”
Effects of NCO/OH Ratios on Bio-Based Polyurethane Film Properties Made from Acacia mangium Liquefied Wood DOI: 10.3390/polym15051154 -
964 cm⁻¹ keyakinan 1.0
“v3P-O and1-weekintraoralexposure.Thepeaksidentifiedwere:-OH (3500and1640cm(cid:2)1),-NH(3300-3100cm(cid:2)1),-CH 3/-CH 2-(2890, vibrations of amorphous Ca-P, and the peaks at 964 and 6101460cm(cid:2)1), (2052cm(cid:2)1), (1741cm(cid:2)1), 5”
Characterization of oral films formed in the presence of a CPP–ACP agent: An in situ study DOI: 10.1016/j.jdent.2008.01.005 -
1313 cm⁻¹ keyakinan 1.0
“amide III band (1313 which contains information C-N C-O N-H Based on this work, however, spectral analysis of the regarding the and stretching and the and cm-1”
Biochemical alterations of Candida albicans during the phenotypic transition from yeast to hyphae captured by Fourier transform mid-infrared-attenuated reflectance spectroscopy DOI: 10.1039/c8an01452c -
1285 cm⁻¹ keyakinan 1.0
“The peaks at 1285 and 1078 are due to Ar-O = prepared with NCO/OH 2 are shown in Figure 3A and B, and R-O stretching, respectively, showing the presence of 1700 1720”
Synthesis of thermally and mechanically improved polyurethane-urea elastomers by using novel diamines as chain extenders DOI: 10.1515/epoly-2016-0134
Lihat N c o dalam spektrum anda sendiri
Muat naik spektrum FTIR anda dan dapatkan laporan tafsiran penuh — tugasan puncak dengan petikan literatur, padanan perpustakaan, dan analisis berasaskan literatur — dalam beberapa saat.