Table 2.3.15N Chemical shift ranges for organonitrogen compounds δN900 800700 600 500400 300 200 100 0(NH3) C-Nitroso- N-Nitroso- Nitro- Azides inner Azo compounds Diazo-,diazonium- ter Pyridine-N furazanes pyrimidines Imino-N oximes hydrazones Pyrrole-N Cyanides Isocyanides Guanidines Amino- Sulfonamides Thioamides Amides Thioureas,ureas Enamines Anilines Amines 8w900 800700600 500400300200100 0(NH3)