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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
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CC=28190 Help
TitleStructure determination of erbium pyrosilicate.
AuthorsSmolin, Yu.I.;Shepelev, Yu.F.
ReferenceIzvestiya Akademii Nauk SSSR, Neorganich (1968) 4, 113-113
Link XRef SCOPUS Google
Also: Phase Transition (1992) 38, 127-220
Link XRef SCOPUS Google
CompoundEr2 O7 Si2 - Dierbium disilicate [A2B2X7] [mP22] [e5 d] []
Cell4.683(5), 5.556(5), 10.79(1), 90., 90., 96.
P1121/B (14) V=279.2
RemarksR=0.062000 : P =25-1416 :
Calculated density unusual but tolerable.
Cell of HoSi2O7: 4.686, 5.580, 10.84, 95.97
Stable below 1323 K (2nd ref., Tomaszewski), cp. 74779

Atom (site) Oxid. x, y, z, B, Occupancy
Er1(4e)3
Si1(4e)4
O1(2d)-2
O2(4e)-2
O3(4e)-2
O4(4e)-2
0.880.090.340.281
0.360.640.380.331
0.50.50.50.911
0.200.860.440.641
0.120.450.310.621
0.610.750.290.551

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