NMR investigation into the dynamic behaviour of a novel C2-symmetric macrocyclic ligand
Copyright (c) 2005 John Wiley & Sons, Ltd
| Veröffentlicht in: | Magnetic resonance in chemistry : MRC. - 1985. - 43(2005), 4 vom: 23. Apr., Seite 321-5 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2005
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| Zugriff auf das übergeordnete Werk: | Magnetic resonance in chemistry : MRC |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Heterocyclic Compounds Ligands Macrocyclic Compounds Protons 1,4,7-triazacyclononane 4730-54-5 |
| Zusammenfassung: | Copyright (c) 2005 John Wiley & Sons, Ltd The variable-temperature (1)H NMR spectra of a tosylated triazacyclononane are reported. The spectra show a dynamic process which is assigned to hindered rotation about the amide-like N--S bonds, and a value for the free energy of activation for the rotations is derived, DeltaG* = 50.2 kJ mol(-1) at 273 K. Steric and electronic factors which influence the barrier are discussed |
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| Beschreibung: | Date Completed 17.06.2005 Date Revised 15.11.2006 published: Print Citation Status MEDLINE |
| ISSN: | 0749-1581 |