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xjxj1xjxj(½ð±Ò+10): 2010-11-13 15:56:54
youzhizhe(½ð±Ò+3):ллָµ¼¡£ 2010-11-25 13:02:40
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CODE:
data_82874-ICSD
#?2008 by Fachinformationszentrum Karlsruhe, and the U.S. Secretary of
#Commerce on behalf of the United States.  All rights reserved.
_database_code_ICSD                82874
_audit_creation_date               1998/06/26
_audit_update_record               2008/02/01
_chemical_name_systematic
;
Dialuminium Tetramagnesium Dodecahydroxide Carbonate Trihydrate
;
_chemical_formula_structural       'Al2 Mg4 (O H)12 (C O3) (H2 O)3'
_chemical_formula_sum              'C1 H18 Al2 Mg4 O18'
_chemical_name_mineral             'Quintinite 2H'
_publ_section_title
;
Crystal structure and comparative crystal chemistry of Al2 Mg4 (O
H)12 (C O3). 3(H2 O), a new mineral from the hydrotalcite- manasseite
group
;
loop_
_citation_id
_citation_journal_abbrev
_citation_year
_citation_journal_volume
_citation_journal_issue
_citation_page_first
_citation_page_last
_citation_journal_id_ASTM
primary Kristallografiya 1996 41 6 1024 1034 KRISAJ
2 'American Mineralogist' 1967 52- 1036 1047 AMMIAY
_publ_author_name
;
Arakcheeva, A.V.;Pushcharovskii, D.Yu.;Rastsvetaeva, R.K.;Atencio,
D.;Lubman, G.U.
;
_cell_length_a                     5.283(3)
_cell_length_b                     5.283(3)
_cell_length_c                     15.150(9)
_cell_angle_alpha                  90.
_cell_angle_beta                   90.
_cell_angle_gamma                  120.
_cell_volume                       366.19
_cell_formula_units_Z              1
_symmetry_space_group_name_H-M     'P -6 2 m'
_symmetry_Int_Tables_number        189
_refine_ls_R_factor_all            .039
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
  1        '-x, -x+y, -z'
  2        'x-y, -y, -z'
  3        'y, x, -z'
  4        '-x, -x+y, z'
  5        'x-y, -y, z'
  6        'y, x, z'
  7        '-x+y, -x, -z'
  8        '-y, x-y, -z'
  9        'x, y, -z'
10        '-x+y, -x, z'
11        '-y, x-y, z'
12        'x, y, z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
Al3+        3
C4+        4
H1+        1
Mg2+        2
O2-        -2
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_B_iso_or_equiv
Mg1 Mg2+ 4 h 0.3333 0.6667 0.243(3) 1. 0 1.8(1)
Al1 Al3+ 2 e 0 0 0.259(3) 1. 0 2.6(1)
C1 C4+ 2 e 0 0 0.021(8) 0.5 0 6.3(9)
O1 O2- 6 i 0 0.651(2) 0.325(8) 1. 1 2.9(2)
O2 O2- 6 i 0.318(2) 0 0.190(1) 1. 1 2.7(2)
O3 O2- 3 f 0.244(3) 0 0 1. 0 4.3(6)
O4 O2- 3 g 0.598(5) 0 0.5 1. 2 6.5(8)
H1 H1+ 6 i 0.35(3) 0.35(3) 0.398(9) 1. 0 3.0(8)
H2 H1+ 6 i 0 0.36(3) 0.125(9) 1. 0 3.0(8)
#Position of 6 Elements of H Are Undetermined.
#End of data_82874-ICSD

7Â¥2010-11-13 08:00:45
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zxzj05(½ð±Ò+1):½±Àø£¡ 2010-11-12 22:33:29
xjxj1xjxj(½ð±Ò+1): 2010-11-13 00:33:08
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xjxj1xjxj

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Originally posted by zzy870720z at 2010-11-12 15:56:38:
LDHÓкܶàÖÖ°É
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3Â¥2010-11-13 00:34:59
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Originally posted by zzy870720z at 2010-11-12 15:56:38:
LDHÓкܶàÖÖ°É
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Originally posted by zzy870720z at 2010-11-12 15:56:38:
LDHÓкܶàÖÖ°É
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Mg-Al -CO3 Ë®»¬Ê¯ Mg£ºAL=2:1  ÉÏÃæÐ´´íÁË ²»ºÃÒâ˼
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±¾ÎÄÀ´×Ô: Сľ³æÂÛ̳ http://muchong.com/bbs/viewthread.php?tid=2587619&pid=2020293&page=1#pid2020293
5Â¥2010-11-13 00:37:25
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mazuju028(½ð±Ò+2):лл½»Á÷ 2010-11-13 16:06:55
youzhizhe(½ð±Ò+3):ллָµ¼¡£ 2010-11-25 13:02:14
icsd²éѯÀïÃæ¾ÍÕâÒ»¸öºÜ½üËÆµÄ½á¹¹
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CODE:
*data for   ICSD #82874
Coll Code   82874
Rec  Date   1998/06/26
Mod  Date   2008/02/01
Chem Name   Dialuminium Tetramagnesium Dodecahydroxide Carbonate Trihydrate
Structured  Al2 Mg4 (O H)12 (C O3) (H2 O)3
Sum         C1 H18 Al2 Mg4 O18
ANX         AB2C4X18
Min Name    Quintinite 2H
D(calc)     2.13
Title       Crystal structure and comparative crystal chemistry of Al2 Mg4 (O
            H)12 (C O3). 3(H2 O), a new mineral from the hydrotalcite- manasseite
            group
Author(s)   Arakcheeva, A.V.;Pushcharovskii, D.Yu.;Rastsvetaeva, R.K.;Atencio,
            D.;Lubman, G.U.
Reference   Kristallografiya
            (1996), 41(6), 1024-1034
            American Mineralogist
            (1967), 52, 1036-1047
Unit Cell   5.283(3) 5.283(3) 15.150(9) 90. 90. 120.
Vol         366.19
Z           1
Space Group P -6 2 m
SG Number   189
Cryst Sys   hexagonal
Pearson     hP43
Wyckoff     i2 h g f e2
R Value     .039
Red Cell    P  5.283 5.283 15.15 90 90 120 366.188
Trans Red   1.000 0.000 0.000 / 0.000 1.000 0.000 / 0.000 0.000 1.000
Comments    R(isotropic)=0.047; 2nd ref. (Ross & Kodama)
            Compound with mineral name: Quintinite 2H
            The structure has been assigned a PDF number (experimental
            powder diffraction data): 51-1528
            X-ray diffraction from single crystal
            Position of 6 Elements of H Are Undetermined.
Atom  #   OX   SITE      x           y           z           SOF      H        ITF(B)   
Mg   1  +2    4 h   0.3333      0.6667      0.243(3)       1.         0          1.8(1)
Al   1  +3    2 e   0           0           0.259(3)       1.         0          2.6(1)
C    1  +4    2 e   0           0           0.021(8)       0.5        0          6.3(9)
O    1  -2    6 i   0           0.651(2)    0.325(8)       1.         H1         2.9(2)
O    2  -2    6 i   0.318(2)    0           0.190(1)       1.         H1         2.7(2)
O    3  -2    3 f   0.244(3)    0           0              1.         0          4.3(6)
O    4  -2    3 g   0.598(5)    0           0.5            1.         H2         6.5(8)
H    1  +1    6 i   0.35(3)     0.35(3)     0.398(9)       1.         0          3.0(8)
H    2  +1    6 i   0           0.36(3)     0.125(9)       1.         0          3.0(8)
*end for    ICSD #82874

6Â¥2010-11-13 07:59:43
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xjxj1xjxj

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Originally posted by zzy870720z at 2010-11-13 08:00:45:
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[code]
data_82874-ICSD
#?2008 by Fachinformationszentrum Karlsruhe, and the U.S. Secretary of
#Commerce on behalf of the United States.  All rights reserved.
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8Â¥2010-11-13 15:56:46
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maress

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9Â¥2010-11-17 21:37:37
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zyj8119

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¡ï
mazuju028(½ð±Ò+1):лл½»Á÷ 2010-11-24 21:06:29
xjxj1xjxj(½ð±Ò+2): ÄúºÃ£¬ÇëÎÊÔõôµ¼Èëµ½MSÀïÃæ? 2011-04-28 20:05:05
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Originally posted by zzy870720z at 2010-11-13 08:00:45:
ÔÙ¸½ÉÏÒ»¸öcifÎļþµÄÄÚÈÝ

[code]
data_82874-ICSD
#?2008 by Fachinformationszentrum Karlsruhe, and the U.S. Secretary of
#Commerce on behalf of the United States.  All rights reserved.
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10Â¥2010-11-24 20:16:59
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Originally posted by zzy870720z at 2010-11-13 08:00:45:
ÔÙ¸½ÉÏÒ»¸öcifÎļþµÄÄÚÈÝ

[code]
data_82874-ICSD
#?2008 by Fachinformationszentrum Karlsruhe, and the U.S. Secretary of
#Commerce on behalf of the United States.  All rights reserved.
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11Â¥2010-11-24 20:48:43
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cenwanglai(½ð±Ò+1):лл»Ø¸´£¡ 2010-11-25 09:08:14
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Originally posted by cenwanglai at 2010-11-24 20:48:43:



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youzhizhe(½ð±Ò+1): лл½»Á÷¡£ 2011-06-09 19:24:32
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