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dc.contributor.authorKobayashi, T.-
dc.contributor.authorNishiyama, Y.-
dc.contributor.authorPandey, M.K.-
dc.date.accessioned2024-10-13T17:21:21Z-
dc.date.available2024-10-13T17:21:21Z-
dc.date.issued2024-10-13-
dc.identifier.urihttp://dspace.iitrpr.ac.in:8080/xmlui/handle/123456789/4733-
dc.description.abstractThe mutual orientation of nuclear spin interaction tensors provides critical information on the conformation and arrangement of molecules in chemicals, materials, and biological systems at an atomic level. Proton is a ubiquitous and important element in a variety of substances, and its NMR is highly sensitive due to their virtually 100% natural abundance and large gyromagnetic ratio. Nevertheless, the measurement of mutual orientation between the 1H CSA tensors has remained largely untouched in the past due to strong 1H–1H homonuclear interactions in a dense network of protons. In this study, we have developed a proton-detected 3D 1H CSA/1H CSA/1H CS correlation method that utilizes three techniques to manage homonuclear interactions, namely fast magic-angle spinning, windowless C-symmetry-based CSA recoupling (windowless-ROCSA), and a band-selective 1H–1H polarization transfer. The asymmetric 1H CSA/1H CSA correlated powder patterns produced by the C-symmetry-based methods are highly sensitive to the sign and asymmetry parameter of the 1H CSA, and the Euler angle β as compared to the symmetric pattern obtained by the existing γ-encoded R-symmetry-based CSA/CSA correlation methods and allows a larger spectral area for data fitting. These features are beneficial for determining the mutual orientation between the nuclear spin interaction tensors with improved accuracy.en_US
dc.language.isoen_USen_US
dc.subjectSolid-state NMRen_US
dc.subjectFast MASen_US
dc.subject1H CSAen_US
dc.subjectMutual orientation of tensorsen_US
dc.titleDetermination of the mutual orientation between proton CSA tensors mediated through band-selective 1H–1H recoupling under fast MASen_US
dc.typeArticleen_US
Appears in Collections:Year-2023

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