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¸÷λÐֵܽãÃã¬ÎÒÔÚÓÃgipaw.x¼ÆËãalpha-Na2Si2O5µÄnmr²ÎÊýʱ£¬³öÏÖÏÂÃæµÄÇé¿ö£º

stopping ...stopping ...
from  cdiaghg  : error #       169
problems computing cholesky

ÎÒʵÔÚ²»Ì«Ã÷°×ÕâÊÇʲôÒâ˼£¬ÓÉÓÚGIPAWµÄØÍÊÆÔÚͬÀàÔªËØÖмÆËã³öµÄ½á¹û¿ÉÒÔºÍʵÑéÖµ¶ÔÓ¦£¬ËùÒÔÎÒ»³ÒÉÊDz»ÊÇÔ­×Ó×ø±ê³öÏÖÁËÎÊÌ⣬ÎÒ°ÑsystemºÍatomic positionÁ½²¿·ÖÌùÉÏ£º

&system
    ibrav = 8
    celldm(1) = 12.1112
    celldm(2) = 2.4063
    celldm(3) = 0.7639
    nat = 36
    ntyp = 3
    ecutwfc = 40
    ecutrho = 500

ATOMIC_POSITIONS crystal

  O   0.1793300000000000   0.3478600000000001   0.6170700000000000
  O  -0.0469200000000000   0.4214100000000001   0.2394500000000000
  O  -0.1793300000000000  -0.3478600000000001   0.6170700000000000
  O   0.0469200000000000  -0.4214100000000001   0.2394500000000000
  O  -0.1793300000000000   0.3478600000000001  -0.6170700000000000
  O   0.0469200000000000   0.4214100000000001  -0.2394500000000000
  O   0.1793300000000000  -0.3478600000000001  -0.6170700000000000
  O  -0.0469200000000000  -0.4214100000000001  -0.2394500000000000
  O  -0.1793300000000000  -0.3478600000000001  -0.6170700000000000
  O   0.0469200000000000  -0.4214100000000001  -0.2394500000000000
  O   0.1793300000000000   0.3478600000000001  -0.6170700000000000
  O  -0.0469200000000000   0.4214100000000001  -0.2394500000000000
  O   0.1793300000000000  -0.3478600000000001   0.6170700000000000
  O  -0.0469200000000000  -0.4214100000000001   0.2394500000000000
  O  -0.1793300000000000   0.3478600000000001   0.6170700000000000
  O   0.0469200000000000   0.4214100000000001   0.2394500000000000
  O   0.0000000000000000   0.2500000000000000   0.2392900000000000
  O   0.0000000000000000  -0.2500000000000000   0.2392900000000000
  O   0.0000000000000000   0.2500000000000000  -0.2392900000000000
  O   0.0000000000000000  -0.2500000000000000  -0.2392900000000000
Na   0.0988800000000000   0.5603600000000000   0.2370400000000000
Na  -0.0988800000000000  -0.5603600000000000   0.2370400000000000
Na  -0.0988800000000000   0.5603600000000000  -0.2370400000000000
Na   0.0988800000000000  -0.5603600000000000  -0.2370400000000000
Na  -0.0988800000000000  -0.5603600000000000  -0.2370400000000000
Na   0.0988800000000000   0.5603600000000000  -0.2370400000000000
Na   0.0988800000000000  -0.5603600000000000   0.2370400000000000
Na  -0.0988800000000000   0.5603600000000000   0.2370400000000000
Si   0.1051600000000000   0.3429800000000002   0.2962400000000000
Si  -0.1051600000000000  -0.3429800000000002   0.2962400000000000
Si  -0.1051600000000000   0.3429800000000002  -0.2962400000000000
Si   0.1051600000000000  -0.3429800000000002  -0.2962400000000000
Si  -0.1051600000000000  -0.3429800000000002  -0.2962400000000000
Si   0.1051600000000000   0.3429800000000002  -0.2962400000000000
Si   0.1051600000000000  -0.3429800000000002   0.2962400000000000
Si  -0.1051600000000000   0.3429800000000002   0.2962400000000000


alpha-Na2Si2O5µÄÐÅÏ¢ÈçÏ£º
Reference   Acta Crystallographica B (24,1968-38,1982)
            (1968), 24, 13-19
Unit Cell   6.409(2) 15.422(4) 4.896(2) 90. 90. 90.
Vol         483.92
Z           4
Space Group P c n b
SG Number   60
Cryst Sys   orthorhombic
Pearson     oP36
Wyckoff     d4 c
R Value     .039
Red Cell    P  4.896 6.409 15.422 90 90 90 483.919
Trans Red   0.000 0.000 1.000 / 1.000 0.000 0.000 / 0.000 1.000 0.000
Atom  #   OX   SITE      x           y           z           SOF      H
Na   1  +1    8 d   0.09888(15) 0.56036(5)  0.23704(16)    1.         0   
Si   1  +4    8 d   0.10516(9)  0.34298(3)  0.29624(9)     1.         0   
O    1  -2    4 c   0           0.25        0.23929(42)    1.         0   
O    2  -2    8 d   0.17933(25) 0.34786(9)  0.61707(26)    1.         0   
O    3  -2    8 d   -.04692(26) 0.42141(9)  0.23945(28)    1.         0   
Lbl  Type      U11         U22         U33         U12         U13         U23
Na1  Na1+ 0.0153(4)   0.0182(4)   0.0130(3)   0.0008(4)   0.0003(3)   -.0008(3)   
Si1  Si4+ 0.0104(3)   0.0089(2)   0.0056(2)   -.0010(2)   -.0005(2)   0.0001(2)   
O1   O2-  0.0281(13)  0.0156(9)   0.0172(9)   -.011(1)    0           0           
O2   O2-  0.0121(7)   0.0219(6)   0.0074(5)   0.0027(6)   -.0005(5)   -.0007(5)   
O3   O2-  0.0165(8)   0.0161(6)   0.0129(6)   0.0034(6)   -.0017(5)   0.0004(5)   
*end for    ICSD #34669

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