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ICSD for WWW : Details

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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
***Click the ANX, Pearson or Wyckoff Symbol to find structures with that symbol***.
CC=83340 Help
TitleThe crystal structures of hydrated and partially dehydrated M3 H Ge7 O16 . n(H2 O), (M = K, Rb, Cs), determined from powder diffraction data using synchrotron radiation.
AuthorsRoberts, M.A.;Fitch, A.N.
ReferenceZeitschrift fuer Kristallographie (1996) 211, 378-387
Link XRef SCOPUS SCIRUS Google
CompoundH5.524 Cs3 Ge7 O18.262 - Caesium hydrogen heptagermanate hydrate (3/1/1/2.26) [A12B28X73] [cI270] [f8 e2 d2 c3] []
Cell15.567(4), 15.567(4), 15.567(4), 90., 90., 90.
I23 (197) V=3772.37
RemarksR=0.074000 : DEF PDF =87-1600 : RVP SNP
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.
At least one temperature factor is implausible or meaningless but agrees with the value given in the paper.

Atom (site) Oxid. x, y, z, B, Occupancy
Ge1(24f)4
Ge2(8c)4
Ge3(24f)4
O1(24f)-2
O2(24f)-2
O3(24f)-2
O4(24f)-2
O5(8c)-2
O6(24f)-2
Cs1(12e)1
Cs2(12e)1
Cs3(12d)1
Cs4(12d)1
O7(8c)-2
O8(24f)-2
H1(24*)1
0.000(2)0.2472(2)0.2520(2)0.23(2)1
0.1814(4)0.1814(4)0.1814(4)0.35(2)1
0.1820(4)0.1804(3)0.6814(5)0.35(2)1
0.183(2)0.189(2)0.065(2)0.5(2)1
0.813(2)0.815(2)0.565(2)0.5(2)1
0.683(2)0.194(2)0.066(1)0.5(2)1
0.180(2)0.691(2)0.066(1)0.5(2)1
0.309(2)0.309(2)0.309(2)0.1(2)1
0.306(2)0.310(2)0.806(2)0.1(2)1
0.1958(6)0.503.5(2)0.533(8)
0.2453(6)0.501.2(1)0.467(8)
0.2223(5)003.3(2)0.675(8)
0.2890(8)001.1(2)0.325(8)
0.971(3)0.971(3)0.971(3)3.0(2)0.25
0.390(1)0.431(1)0.904(2)2.0(2)0.6708(83)
01.841

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