The decoupled HSQC (or Double INEPT) experiment in which the initial INEPT and the last retro-INEPT pulse trains are replaced by refocused INEPT pulse trains in order to achieve in-phase …

2004年1月12日 · The goal of this article is to provide a comprehensive, pedagogical description of these two pulse sequences, with the aid of product operator formalism. Building from basic …

2021年11月3日 · In overcrowded HSQC spectra, proton multiplet structures of cross peaks set a limit to the power of resolution and make a straightforward assignment difficult. In this work, …

Modern NMR techniques consist of a seemingly end-less multitude of pulse sequences and remains in a state of continuous evolution. However, two simple building blocks are the root of …

2023年2月11日 · The pulse sequence for a typical HSQC experiment is detailed below involving 1 H and 15 N nuclei. In an HSQC spectrum, a 13 C or heteroatom spectrum is displayed on one …

Heteronuclear single quantum coherence spectroscopy (HSQC) is used to correlate the chemical shift of protons (displayed on the F2 axis) to the 13 C chemical shift (on the “indirect,” F1 axis) …

2023年1月1日 · In this chapter, we highlight the potential of a class of methods called intrinsically quantitative 2D HSQC. They are generated by designing pulse sequences able for each …

How does the HSQC work? The HSQC is a poster-child for building block sequences. The red part of the above pulse sequence diagram is an optional TANGO (see last month’s topic), it …

COSY experiments provide information about 1H-1H coupling, producing crosspeaks for proton pairs having direct JHH couplings ranging 2.5 to 25 Hz for standard COSY and DQ-COSY, …

A vectorial representation of the full sequence of events occurring during the 2D-NMR heteronuclear single-quantum correlation (HSQC) experiment is presented. The proposed …