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Chudinova, N. N.; Зимина, Г. В.; Sereda, A. E.; Balagina, G. M.; Мурашова, Е. В.; Береснев, Э. Н.

doi:10.1023/a:1016204811901

Cited by 2 publications

(2 citation statements)

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“…Heating powders of lt ‐Eu III (PO 3 ) 3 at ϑ = 1020 °C for one day leads to transformation to the thermodynamically stable ht ‐Eu III (PO 3 ) 3 . Chudinova et al provided already hints on this compound . Colorless single crystals of ht ‐Eu III (PO 3 ) 3 were found in such powders and investigated by SXRD (Table ).…”

Section: Resultsmentioning

confidence: 96%

“…Besides the well‐known europium(III) phosphates Eu III PO 4 ( Monazite structure type) and Eu III P 5 O 14 the less‐well characterized oxide phosphate Eu III 3 O 3 (PO 4 ),, and the hitherto unknown high‐temperature phase ht ‐Eu III (PO 3 ) 3 (isotypic to monoclinic Gd III (PO 3 ) 3 ) were observed as equilibrium phases. The tetraphosphate Eu III 2 P 4 O 13 (isotypic to Y III 2 P 4 O 13 ) and a second, low‐temperature polymorph of the metaphosphate Eu III (PO 3 ) 3 (isotypic to orthorhombic Gd III (PO 3 ) 3 ) were obtained as thermodynamically metastable solids.…”

Section: Resultsmentioning

confidence: 99%

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Anhydrous Europium Phosphates: A Comprehensive Report on Syntheses, Crystal Structures, and Phase Relations

Grunwald

Wittich

Glaum

2018

Zeitschrift anorg allge chemie

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In the ternary system Eu/P/O the anhydrous phosphates EuII3(PO4)2, EuII3EuIII(PO4)3, EuIII3O3(PO4), EuIIIPO4, EuIII(PO3)3, and EuIIIP5O14 exist at equilibrium conditions (ϑ ≈ 1000 °C). A superstructure model for EuII3EuIII(PO4)3 [Eulytite structure family, Fdd2, Z = 24, a = 14.298(1) Å, b = 42.123(3) Å, c = 10.3887(9) Å] is proposed. The results of single‐crystal X‐ray diffraction (SXRD) studies on EuII10–xEuIIIx(PO4)6O1+x/2 (x ≈ 1.5), EuIII3O3(PO4) and ht‐EuIII(PO3)3 are reported. The crystal structures of the thermodynamically metastable phases EuIII2P4O13 (isotypic to YIII2P4O13) and lt‐EuIII(PO3)3 (isotypic to GdIII(PO3)3) were refined from X‐ray powder diffraction data (XRPD). According to our investigation for the oxide phosphide “EuII4OP2” an europium deficiency has to be assumed according to EuII4–xEuIII2x/3OP2 (x ≈ 1.5).

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Section: Resultsmentioning

confidence: 96%