Poddig Hagen, Doert Thomas
Faculty of Chemistry and Food Chemistry, TU Dresden, D-01062 Dresden, Germany.
Acta Crystallogr E Crystallogr Commun. 2022 May 13;78(Pt 6):559-562. doi: 10.1107/S2056989022004844. eCollection 2022 Jun 1.
Single crystals of LaTe (lanthanum telluride) have been obtained by chemical transport reactions with iodine as transport agent. LaTe adopts the CeSe structure type and crystallizes in the space group 4/ with lattice parameters = 10.1072 (3) Å and = 18.2874 (6) Å. The crystal structure comprises an alternating stacking of puckered [LaTe] slabs and planar [Te] layers along [001]. The planar [Te] layer is dominated by dumbbell-shaped Te anions along an isolated Te anion and a vacancy. The Te anions form an eight-membered ring enclosing the vacancy in the centre.
通过以碘作为传输剂的化学传输反应获得了碲化镧（LaTe）的单晶。LaTe采用CeSe结构类型，结晶于空间群4/，晶格参数a = 10.1072 (3) Å和c = 18.2874 (6) Å。晶体结构由沿[001]方向交替堆叠的褶皱[LaTe]板和平面[Te]层组成。平面[Te]层主要由哑铃形Te阴离子沿着一个孤立的Te阴离子和一个空位排列。Te阴离子形成一个八元环，中心包围着空位。
