The dehydration of Eu2(C2O4)3 · 10H2O occurs below 200 °C:[1]
The
decomposition of this compound takes place in two stages, the first at 350 °C and the second at about 620 °C.[1][6]
In the
Mössbauer spectrum, Eu2(C2O4)3 · 10H2O shows an isomer shift of +0,26 mm/s with a line width of 2,38 mm/s, in reference to
EuF3.[4][7] The
Debye temperature of Eu2(C2O4)3 is 166±15 K.[8]
Eu2(C2O4)3 · 10H2O crystallizes
monoclinically in the space group of P21/c (space group no. 14) with the lattice parameters a = 1098, b = 961, c = 1004 pm and β = 114.2° with four formula units per unit cell.[9]
Nanoparticles show a line emission when excited by a light source of 393 nm, the transitions 5D0→7F1 (592 nm) and 5D0→7F2 (616 nm) can then be found in the spectrum. This can be used as a red
phosphor for white
LEDs.[10]
^S. S. Berdonosov, D. G. Berdonosova, M. A. Prokofev, V. Ya. Lebedev (1976). "Study of europium oxalate decahydrate". Zh. Neorg. Khim.: 1184–1189.{{
cite journal}}: CS1 maint: multiple names: authors list (
link)
^
abWynter, C. I.; Oliver, F. R.; Hill, Dana; Spijkerman, J. J.; Boyd-Bartlett, Y. P. (1991-08-01). "Short Communication: Mössbauer Effect 151Eu of in Europium Chelates". Radiochimica Acta. 55 (2): 111–112.
doi:
10.1524/ract.1991.55.2.111.
S2CID99690174.
^A. Glasner, E. Levy, M. Steinberg (1965). "Thermogravimetric and Differentialthermoanalyse of europium(III)oxalat and unite europium(II)salzen". Chemisches Zentralblatt (17): 05296.{{
cite journal}}: CS1 maint: multiple names: authors list (
link)
^Wynter, C.I.; Oliver, F.W.; Davis, Alfred; Spijkerman, J.J.; Stadelmaier, H.; Wolfe, E.A. (1993). "Mössbauer effect of 151Eu in europium oxalate and fluorides". Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 76 (1–4): 352–353.
Bibcode:
1993NIMPB..76..352W.
doi:
10.1016/0168-583X(93)95235-W.