What are the differences between the HMQC and HSQC …
2017年8月30日 · There are a lot more HSQC and HMQC variants that are used, e.g. Sofast-HMQC or TROSY sequences that are used for larger molecules like proteins. Another …
Product operator analysis for CHn groups in HSQC and HMQC
2020年5月16日 · And since HMQC basically gives the same info, I assume it will work the same, and results for $\ce{CH}$ and $\ce{CH2}$ group will also give me the same. Is this correct? Is …
Why does ''X {1H} nucleus'' NMR experiment doesn't give any …
2024年10月3日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
organic chemistry - Determining structure using HNMR and IR
2016年3月1日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
What effect does hydrogen bonding have on H NMR spectra?
Hydrogen bonding is well known to cause large changes in chemical shift values– this is evident if you look up the chemical shift of an alcohol in a data-book (for an aliphatic alcohol this is …
Why does Carbon-13 NMR not have splitting patterns?
2017年12月4日 · If you're interested in coupling to nuclei other than 1 H:. coupling to 13 C is all but invisible, considering the low natural abundance of 13 C. Recall that in a 13 C spectrum …
nmr spectroscopy - Chemistry Stack Exchange
2017年4月13日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
Comparison of COSY and TOCSY for detection of small couplings …
2017年6月1日 · Magnetisation transfer in a TOCSY experiment occurs via a different mechanism than for COSY. The spinlock generates an oscillatory exchange of coherence between spins …
What are the effects of radio waves on matter?
2019年9月4日 · Radio waves $10^4$ to $10^{11}$ Hz are not that innocent as is commonly purported. Long time ago there was an demonstration that radio waves of certain frequency …
Term symbol for atomic nitrogen: why can't S be -1/2?
2016年10月25日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …