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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=81528 Help
TitleNa2 K (W N3) and Na11 Rb ((W N3)4), two new alkali metal nitrido tungstates(VI) with closely related structures.
AuthorsNiewa, R.;Jacobs, H.
ReferenceJournal of Alloys Compd. (1996) 233, 61-68
Link XRef SCOPUS SCIRUS Google
CompoundK1 N3 Na2 W1 - Disodium potassium trinitridotungstate [ABC2X3] [oP56] [e4 d5 c2] []
Cell6.3948(9), 12.292(3), 11.924(3), 90., 90., 90.
PBCM (57) V=937.28
RemarksR=0.033000 : DEF COA
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.
Values for b- and c-axes interchanged in paper

Atom (site) Oxid. x, y, z, B, Occupancy
W1(4d)6
W2(4c)6
K1(8e)1
K2(4d)1
Na1(8e)1
Na2(4d)1
Na3(4c)1
N1(8e)-3
N2(8e)-3
N3(4d)-3
N4(4d)-3
0.02855(6)0.38159(3)0.2501
0.27958(8)0.25001
0.071(1)0.5180(4)0.0048(4)00.499(5)
0.6261(7)0.2001(3)0.2501
0.4722(6)0.4625(3)0.1256(3)01
0.1653(8)0.1246(3)0.2501
0.7731(9)0.25001
0.101(2)0.2993(6)0.1187(6)01
0.445(2)0.1412(26)0.0538(7)01
0.166(2)0.5101(8)0.2501
0.754(2)0.405(2)0.2501
Atom (site) Oxid. U11, U22, U33, U12, U13, U23
W1(4d)6
W2(4c)6
K1(8e)1
K2(4d)1
Na1(8e)1
Na2(4d)1
Na3(4c)1
N1(8e)-3
N2(8e)-3
N3(4d)-3
N4(4d)-3
0.0129(1)0.0249(1)0.0072(1)-.0029(1)00
0.0445(2)0.0091(1)0.0138(1)000.0003(1)
0.108(4)0.035(2)0.024(1)0.039(2)0.012(2)0.0313(1)
0.059(2)0.044(2)0.054(2)0.002(2)00
0.037(2)0.022(1)0.026(1)-.002(1)0.006(1)-.003(1)
0.032(2)0.013(2)0.033(2)-.002(2)00
0.014(2)0.123(6)0.090(5)00-.058(4)
0.070(5)0.029(3)0.019(3)-.003(4)0.012(3)-.006(2)
0.073(5)0.023(3)0.039(4)0.012(3)-.023(4)-.003(3)
0.027(4)0.021(3)0.032(4)0.003(3)00
0.013(4)0.11(1)0.067(9)-.001(7)00

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