Synthesis, Structure, and Reactivity of Novel Lanthanum Tungstates

Structures and negative thermal expansion properties of solid solutions Y Nd2−W3O12 (x= 0.0–1.0, 1.6–2.0)

“…2. It is noted that for x = 0.0-1.0 their structures are consistent with that of the pure Nd 2 W 3 O 12 -type compounds La 2 W 3 O 12 [13], Ce 2 W 3 O 12 [14] and Eu 2 W 3 O 12 [15]. Vertical bars indicate the position of Bragg peaks for this phase.…”

“…[7,16]. Nd 2 W 3 O 12 is isomorphous with a number of rare earth tungstates; however, only the structure of the La compound has been studied in detail recently [13]. To get more accurate structural information of Y 0.25 Nd 1.75 W 3 O 12 , the TOF neutron diffraction data of Y 0.25 Nd 1.75 W 3 O 12 were collected at room temperature on SEPD of the Intense Pulsed Neutron Source at Argonne National Laboratory.…”

Hyperfine structure and hyperfine coherent properties of praseodymium in single-crystallineLa2(WO4)3by hol

“…Lanthanum tungstate crystal belongs to the monoclinic system with space group C2 / c, with unit parameters a = 7.873͑2͒ Å, b = 11.841͑2͒ Å, c = 11.654͑2͒ Å, ␤ = 109.25͑3͒, and Z =4. 20 Pr 3+ ions substitute La 3+ ions in only one crystallographic site of C 1 symmetry. The Pr concentration determined by inductively coupled plasma atomic spectroscopy is 0.2% which corresponds to 1.55 10 19 at/ cm 3 .…”

Chloride derivatives of lanthanoid(III) ortho-oxidotungstates(VI) with the formula LnCl[WO4] (Ln=Gd–Lu): Syntheses, crystal structures and spectroscopic properties

“…La 2 [WO 4 ] 3 : d(W 6þ -O 2À )¼171-187 pm [26]). Their W-O-W bond angles range from 100 to 1141 (Tables 5 and 6), thus showing a deviation of the ideal tetrahedral angle (109.51) by about 9%.…”