This work was supported by the University of Rosario, Consejo Nacional de Investigaciones Cientificas y Tecnicas, Argentina, (CONICET) and Fundacion Antorchas (A.C.O., S.H.A.) We thank the U.K. Science and Engineering Research Council (SERC) for access to the Varian VXR 300 spectrometer under the National Solid-State NMR Service arrangements, and for provision of the Chemagnetics CMX 200 system (research grant GR/H96096). We are grateful to R. Challoner, B. J. Say, and D. C. Apperley for assistance with spectrometer operation. S.A.C. thanks the University of Durham for a Research Studentship.
Effects of 35Cl/37Cl, 13C Residual Dipolar Coupling on the Variable-Temperature 13C CP/MAS NMR Spectra of Solid, Chlorinated Sodium Acetates†
Article first published online: 22 DEC 2003
Copyright © 1994 by VCH Verlagsgesellschaft mbH, Germany
Angewandte Chemie International Edition in English
Volume 33, Issue 15-16, pages 1624–1625, September 2, 1994
How to Cite
Alarcón, S. H., Olivieri, A. C., Carss, S. A. and Harris, R. K. (1994), Effects of 35Cl/37Cl, 13C Residual Dipolar Coupling on the Variable-Temperature 13C CP/MAS NMR Spectra of Solid, Chlorinated Sodium Acetates. Angew. Chem. Int. Ed. Engl., 33: 1624–1625. doi: 10.1002/anie.199416241
- Issue published online: 22 DEC 2003
- Article first published online: 22 DEC 2003
- Manuscript Received: 11 MAR 1994
Agreement between theory and practice: Solid-state NMR studies on organic compounds with CH2Cl, CHCl2, and CCl3 groups show that residual dipolar coupling between 35Cl/37Cl and 13C nuclei influences the splitting of the signals depending on the magnetic field strength B. When molecular motions are slow enough to prevent self-decoupling, signals for C nuclei affected by a single Cl nucleus appear as symmetric doublets at B0 >5 T and as asymmetric triplets at lower fields.