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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
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TitleKristallstruktur-Verfeinerungen an Rubidiumtetrafluorometallaten(II): Rb2 M F4 (M=Mg, Co, Ni).
AuthorsWelsch, M.;Babel, D.
ReferenceZeitschrift fuer Naturforschung, Teil B. (1991) 46, 161-164
Link XRef SCOPUS Google
Also: Zeitschrift fuer Anorganische und Allgem (1962) 317, 261-287
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Also: Naturwissenschaften (1962) 49, 230-230
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CompoundF4 Ni1 Rb2 - Dirubidium tetrafluoroniccolate [AB2X4] [tI14] [e2 c a] [K2MgF4]
Cell4.086(1), 4.086(1), 13.708(3), 90., 90., 90.
I4/MMM (139) V=228.86
RemarksR=0.032000 : T =K2MgF4 :
(N H4)2 Ni F4: 4.08, 13.7, Dm=2.39; Rb2 Cu F4: 4.23, 13.2
Tl2 Ni F4: 4.05, 14.2, Dm=7.85; Tl2 Cu F4: 4.19, 13.6
Cells of isotypic compounds (2nd and 3rd reference):

Atom (site) Oxid. x, y, z, B, Occupancy
Rb1(4e)1
Ni1(2a)2
F1(4e)-1
F2(4c)-1
000.3501
00001
000.1401
0.50001
Atom (site) Oxid. U11, U22, U33, U12, U13, U23
Rb1(4e)1
Ni1(2a)2
F1(4e)-1
F2(4c)-1
0.010.010.01000
0.000.000.01000
0.010.010.01000
0.000.010.01000

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