Thorium Amides and Imides

Chemistry Division, Atomic Energy Research Establishment, 

The reported thorium amides, imides, and related double salts are listed in Table 13. There has been no recent publication dealing with thorium tetramide (see Thorium 1955, pp. 242/3). 

The diamideimide Th(NH)(NH2)2 is reported to precipitate when potassium amide is added to a solution of the hexanitrato complex K2Th(N03)e in anhydrous liquid ammonia at -10°C [1]. 

The imidenitride Th2N2(NH) is obtained by heating thorium metal powder in ammonia (2500 to 5500 atm) at 400 to 550°C for 24 to 96 h [2,4] and by the thermal decomposition of Th(NH)2 [2]. A second imidenitride, Th3N2(NH)3, is reported to form when ThNI or ThNBr mixed with NaNH2 is heated with KN3 in ammonia (350°C, 6000 atm, 650 h). The product also contained Th2N2(NH) [2]. 

---

Unit Cell Dimensions and Densities for Thorium Amides and Imides. 

The various thorium(IV) amides and imides are readily hydrolysed [1 to 3]. 

---