Correction: Depolymerization of polystyrene under ambient conditions

Balema, Viktor P.; Hlova, Ihor Z.; Carnahan, Scott L.; Seyedi, Mastooreh; Dolotko, Oleksandr; Rossini, Aaron J.; Luzinov, Igor

doi:10.1039/d1nj90029c

Cited by 2 publications

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“…For example, oxygen‐ and carbon‐centered radicals were detected in the mechanochemical depolymerization of polystyrene. [ 40 ] Furthermore, mechanophores forming radicals reversibly have been incorporated into polymeric systems, and their freezing‐induced mechanochemistry has been studied by EPR spectroscopy. [ 41 ] Finally, spin labels have been applied.…”

Section: Analytical Methods In Organic Mechanochemistrymentioning

confidence: 99%

Opportunities and Challenges in Applying Solid‐State NMR Spectroscopy in Organic Mechanochemistry

et al. 2023

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In recent years it was shown that mechanochemical strategies can be beneficial in directed conversions of organic compounds. Finding new reactions proved difficult, and due to the lack of mechanistic understanding of mechanochemical reaction events, respective efforts have mostly remained empirical. Spectroscopic techniques are crucial in shedding light on these questions. In this overview, the opportunities and challenges of solid‐state nuclear magnetic resonance (NMR) spectroscopy in the field of organic mechanochemistry are discussed. After a brief discussion of the basics of high‐resolution solid‐state NMR under magic‐angle spinning (MAS) conditions, seven opportunities for solid‐state NMR in the field of organic mechanochemistry are presented, ranging from ex‐situ approaches to structurally elucidate reaction products obtained by milling to the potential and limitations of in‐situ solid‐state NMR approaches. Particular strengths of solid‐state NMR, for instance in differentiating polymorphs, in NMR‐crystallographic structure‐determination protocols, or in detecting weak noncovalent interactions in molecular‐recognition events employing proton‐detected solid‐state NMR experiments at fast MAS frequencies, are discussed.This article is protected by copyright. All rights reserved

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Section: Analytical Methods In Organic Mechanochemistrymentioning

confidence: 99%

Opportunities and Challenges in Applying Solid‐State NMR Spectroscopy in Organic Mechanochemistry

et al. 2023

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“…NMR crystallography has been employed already in the field of mechanochemistry, for instance in structure determination of organic mechanochemical products like multi-component crystals containing urea, [63] fluoxetine HCl co-crystals, [64] and Zn-Terephthalate networks. [65] In these examples, solid-state NMR on quadrupolar nuclei ( 17 O and 35 Cl) was employed. DFTcalculated electric-field gradient (EFG) tensors were explored from an initial structure model based on the powder X-ray diffraction pattern data and refined using the solid-state NMR data gathered for the studied crystals.…”

Section: Opportunities Of High-resolution Solid-state Nmr Spectramentioning

confidence: 99%

“…DFTcalculated electric-field gradient (EFG) tensors were explored from an initial structure model based on the powder X-ray diffraction pattern data and refined using the solid-state NMR data gathered for the studied crystals. For multi-component crystals containing urea, experimental 35 Cl EFG tensors were used as a figure of merit for further refinement of the crystal structure.…”

Section: Opportunities Of High-resolution Solid-state Nmr Spectramentioning

confidence: 99%

“…For example, oxygen-and carbon-centered radicals were detected in the mechanochemical depolymerization of polystyrene. [35] Furthermore, mechanophores forming radicals reversibly have been incorporated into polymeric systems, and their freezing-induced mechanochemistry has been studied by EPR spectroscopy. [36] Finally, spin labels have been applied.…”

Section: Introductionmentioning

confidence: 99%

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Opportunities and Challenges in Applying Solid-State NMR Spectroscopy in Organic Mechanochemistry

Silva

Bartalucci

Bolm

et al. 2023

Preprint

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In recent years it was shown that mechanochemical strategies can be beneficial in directed conversions of organic compounds. Finding new reactions proved difficult, and due to the lack of mechanistic understanding of mechanochemical reaction events, respective efforts have mostly remained empirical. Spectroscopic techniques are crucial in shedding light on these questions. In this overview, we discuss the opportunities and challenges of solid-state nuclear magnetic resonance (NMR) spectroscopy in the field of organic mechanochemistry. After a brief discussion of the basics of high-resolution solid-state NMR under magic-angle spinning (MAS) conditions, we present seven opportunities for solid-state NMR in the field of organic mechanochemistry, ranging from ex-situ approaches to structurally elucidate reaction products obtained by milling to the potential and limitations of in-situ solid-state NMR approaches. Particular strengths of solid-state NMR, for instance in differentiating polymorphs, in NMR-crystallographic structure-determination protocols, or in detecting weak noncovalent interactions in molecular-recognition events employing proton-detected solid-state NMR experiments at fast MAS frequencies, are discussed.

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Correction: Depolymerization of polystyrene under ambient conditions

Abstract: Correction for ‘Depolymerization of polystyrene under ambient conditions’ by Viktor P. Balema et al., New J. Chem., 2021, 45, 2935–2938, DOI: 10.1039/D0NJ05984F.

Cited by 2 publications

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Opportunities and Challenges in Applying Solid‐State NMR Spectroscopy in Organic Mechanochemistry

Opportunities and Challenges in Applying Solid‐State NMR Spectroscopy in Organic Mechanochemistry

Opportunities and Challenges in Applying Solid-State NMR Spectroscopy in Organic Mechanochemistry

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