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A Homonuclear Rotational Echo Double‐Resonance Method for Measuring Site‐Resolved Distance Distributions in I = 1/2 Spin Pairs, Clusters, and Multispin Systems
Author(s) -
Ren Jinjun,
Eckert Hellmut
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201207094
Subject(s) - homonuclear molecule , heteronuclear molecule , pulse sequence , coupling constant , hamiltonian (control theory) , dipole , nuclear magnetic resonance , spin echo , resonance (particle physics) , echo (communications protocol) , chemistry , magnetic dipole–dipole interaction , physics , atomic physics , molecular physics , nuclear magnetic resonance spectroscopy , quantum mechanics , molecule , computer science , magnetic resonance imaging , mathematics , medicine , mathematical optimization , radiology , computer network
In a new solid‐state NMR method a double‐quantum Hamiltonian based on a POST‐C7 pulse sequence is used to recouple the homonuclear dipole–dipole interactions. Similar to the heteronuclear rotational echo double‐resonance (REDOR) method, an analysis of the difference signal at short evolution times yields site‐resolved summed squares of the dipole–dipole coupling constants.