Related Experiment Video
Updated: May 15, 2025

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
Published on: October 9, 2020
Nuclear Magnetic Resonance- and Electron Paramagnetic Resonance Spectroscopic Characterization of S4N4 and (SN)
Julian Radicke1, Vanessa Jerschabek1, Haleh Hashemi Haeri1
1Department of Chemistry, Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany.
Abstract:
This work focuses on the reaction mechanism of poly(sulfur nitride) ((SN), (S15N)), with the ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate [EMIm][OAc]. We compare this with the reaction of the IL with S4N4 or its 15N-labeled form S415N4, a precursor for the synthesis of (SN) and (S15N). After purification of the S4N4-IL- and S415N4-IL systems via column chromatography, we characterized the reaction products with 1H, 13C, and 15N nuclear magnetic resonance spectroscopy and with electron spray ionization time-of-flight mass spectrometry. Furthermore, time-resolved electron paramagnetic resonance spectroscopy and time-resolved ultraviolet-visible spectroscopy were carried out. Thus, radical intermediates were detected, which were consumed with reaction time. Finally, we postulate a reaction mechanism for the S4N4-IL- and S415N4-IL systems and compare this with the respective data for the (SN) -IL- and (S15N)-IL-systems.
More Related Videos
07:24Paramagnetic Relaxation Enhancement for Detecting and Characterizing Self-Associations of Intrinsically Disordered Proteins
Published on: September 23, 2021
08:01Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo
Published on: September 26, 2016
Related Concept Videos
Nuclear Magnetic Resonance (NMR): Overview
NMR spectroscopy generates a spectrum where the characteristic absorption frequencies of the sample are...
Applications Of NMR In Biology
Atomic Nuclei: Magnetic Resonance
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals
NMR Spectrometers: Overview