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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=76314 Help
TitleThe crystal structures of Na2 Zn Si O4, Na2 Zn Ge O4 and Na2 Mg Ge O4.
AuthorsJoubert-Bettan, C.A.;Lachenal, R.;Bertaut, E.F.;Parthe, E.
ReferenceIC&volume=1&fpage=1&details=yes target=icsd_help>Journal of Solid State Chemistry (1969) 1, 1-5
Link XRef SCOPUS Google
CompoundGe1 Na2 O4 Zn1 - Disodium zinc germanate [ABC2X4] [mP16] [a8] []
Cell7.17, 5.56, 5.32, 90., 90.1, 90.
P1N1 (7) V=212.08
RemarksR=0.150000 : P =37-255 :
At least one temperature factor missing in the paper.
The coordinates are those given in the paper but the atomic distances do not agree with those calculated during testing.The coordinates are probably correct.
Cell of Na2 Mg Ge O4: 7.15, 5.60, 5.35, 90.1
Parameters as for Na2 Zn Si O4, cp. 18314

Atom (site) Oxid. x, y, z, B, Occupancy
Na1(2a)1
Na2(2a)1
Zn1(2a)2
Ge1(2a)4
O1(2a)-2
O2(2a)-2
O3(2a)-2
O4(2a)-2
0.740.690.9901
0.500.170.9901
0.000.190.9901
0.240.68001
0.720.600.4301
0.550.150.4301
0.930.220.3501
0.280.680.3001

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