The thorium–tellurium system

Ternary and Quaternary Uranium and Thorium Chalcogenides

“…The two subgroups adopt either the anti-Ti 2 Bi structure type (UGeTe) [36][37][38][39] or the PbFCl structure type. 2,4,37,38,[40][41][42][43][44][45][46][47] The difference between the two structures lies in the way the antiprisms are connected. For the former, the antiprisms stack directly on top of one another, sharing 4Y faces (Figure 8a).…”

“…The prisms share edges and corners to form layers that stack with an atom sequence Y − An − Q − Q − An − Y −. The two subgroups adopt either the anti-Ti 2 Bi structure type (UGeTe) − or the PbFCl structure type. ,,,,− The difference between the two structures lies in the way the antiprisms are connected. For the former, the antiprisms stack directly on top of one another, sharing 4 Y faces (Figure a).…”

“…Interest in the chemistry of thorium (Th) and uranium (U) chalcogenides (chalcogen = Q = S, Se, Te) began in the late 1940s . Early work centered mainly on the synthesis of solid-state binary chalcogenides; these were characterized almost entirely by X-ray powder diffraction techniques. − However, as better synthetic and analytical techniques became available, the focus of such research shifted to single-crystal studies of binary, ternary, and even quaternary systems. Though the structural chemistry of the actinides is often similar to that of some lighter transition metals, such as Zr and Hf, and to that of the lanthanides, the diffuse nature of the 5 f orbitals leads to some differences and especially to interesting magnetic and electrical properties.…”

Synthesis and Structure of the Layered Thorium Telluride CsTh2Te6

“…Because of their interesting magnetic properties and because of the accessibility of several oxidation states, solid-state compounds of actinide metals have been studied extensively. , The number of known uranium chalcogenide compounds greatly exceeds the number of known thorium chalcogenides. Binary thorium tellurides, characterized structurally only by X-ray powder patterns, include ThTe, ThTe 3 , and Th 2 Te 3 ThSbTe, and ThBiTe 6 have also been reported.…”

Thermodynamic investigation on MTe2O6 (M=Th, Ce)

“…The possibility of interaction of Te with fuel material and fission products to form both metallic and oxide phases cannot be ruled out. The formation of species like ThOTe [9] and ThTe 2 O 6 [10] has been reported in the Th-Te-O system. However, thermodynamic data on this system are scarce.…”