2015年3月7日 · If the rate of exchange is slow compared to the nmr timescale, then two distinct peaks, both with accurate integrals, are seen. In the case where the rate of exchange is …

2021年2月11日 · Recording NMR is not limited to $\mathrm{^1H}$, but for isotopes of other nuclei, too if their magnetic spin is not zero. $\mathrm{^{13}C}$ , for example is an other …

2019年11月11日 · In NMR a spectrum consists of noise and peaks. While steps, such as repeated scans or smoothing of the spectra can reduce noise some still remains. As such one …

2020年3月8日 · Overlapping peaks. NMR spectra are simply the superposition of all nuclei in the sample. If two singlet species have a non-identical chemical shift within their natural …

2014年10月20日 · I need to assign the H-NMR of aspirin, below is aspirin with the H's labelled. The peaks I have are: 2.30ppm (I this is a singlet and would be F) 7.07ppm (I think this is E) …

2017年8月26日 · The type of H-NMR spectra observed for S=PF2H and other inorganic molecules similar to this Hot Network Questions How would Nicodemus, a Pharisee and …

2018年5月4日 · The following spectrum is taken using a high resolution NMR instrument. The $\delta~7.70-7.70$ region was expanded to show the coupling pattern of 5 aromatic …

2019年3月20日 · The 2 peaks produced do appear to get sharper with temperature and the two peaks are the same size, however the difference in chemical shift (between the 2 peaks) at …

2024年4月12日 · I think I have figured out the IR spectrum for benzophenone. Would it be that the sharp peak in the middle (1700 cm^-1) is for the ketone and the little peaks past the 2900 cm^ …

2020年4月30日 · Keep in mind that chemical shifts of these two signals can be moved to up- or down-field positions depending on the using locking solvent. For example, the locking solvent …