Front Cover; Annual Reports on NMR Spectrosocopy, Volume 25; Copyright Page; Contents; List of Contributors; Preface; Chapter 1. Nitrogen NMR Spectroscopy; 1. Introduction; 2. Theory of nitrogen NMR parameters; 3. Calibration techniques and sign conventions; 4. Experimental techniques; 5. General considerations of nitrogen shieldings; 6. Some notes on nitrogen NMR in individual groups of molecules and ions; 7. Some notes on 15N coupling constants; 8. Relaxation phenomena; List of tables; Tables 1 to 34; Addendum on I4N NQR and ENDOR; References; Index