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2Â¥: Originally posted by ЦЦ³î at 2013-11-03 17:39:32
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ÎÒÖ÷ÒªÊÇÏëÇóÒ»¸öCalcuim Ferrite type NaMn2O4µÄcifÎļþ£¬µ«ÊÇ·¢±í¸Ã½á¹¹µÄÎÄÕÂÖÐûÓиø³öcifÎļþ.
ÎÄÕ·¢±íÔÚjournal of Solid State Chemistry 179 (2006) 169-174ÉÏÃæ
¾§Ìå¿Õ¼äȺPnam,  
ÆäËûµÄÏàͬ½á¹¹µÄ»¯ºÏÎïÒ²¿ÉÒÔ±ÈÈçMgAl2O4.

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3Â¥2013-11-05 17:06:32
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data_172604-ICSD
#?2009 by Fachinformationszentrum Karlsruhe, and the U.S. Secretary of
#Commerce on behalf of the United States.  All rights reserved.
_database_code_ICSD                172604
_audit_creation_date               2007/04/01
_chemical_name_systematic          'Sodium Dimanganese(III,IV) Oxide'
_chemical_formula_structural       'Na Mn2 O4'
_chemical_formula_sum              'Mn2 Na1 O4'
_publ_section_title
;
High pressure synthesis and crystal structure analysis of Na Mn2 O4
with the calcium ferrite-type structure
;
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 'Journal of Solid State Chemistry' 2006 179 1 169 174 JSSCBI
_publ_author_name
;
Akimoto, J.;Awaka, J.;Kijima, K.;Takahashi, Y.;Maruta, Y.;Tokiwa,
K.;Watanabe, T.
;
_cell_length_a                     8.9055(18)
_cell_length_b                     11.0825(22)
_cell_length_c                     2.8524(5)
_cell_angle_alpha                  90.
_cell_angle_beta                   90.
_cell_angle_gamma                  90.
_cell_volume                       281.52
_cell_formula_units_Z              4
_symmetry_space_group_name_H-M     'P n a m'
_symmetry_Int_Tables_number        62
_refine_ls_R_factor_all            .041
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
  1        'x+.5, -y+.5, z'
  2        'x, y, -z+.5'
  3        '-x+.5, y+.5, z+.5'
  4        '-x, -y, -z'
  5        '-x+.5, y+.5, -z'
  6        '-x, -y, z+.5'
  7        'x+.5, -y+.5, -z+.5'
  8        'x, y, z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
Mn3.5+        3.5
Na1+        1
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
Na1 Na1+ 4 c 0.24670(13) 0.33975(10) 0.25 1. 0
Mn1 Mn3.5+ 4 c 0.06764(6) 0.11327(4) 0.25 1. 0
Mn2 Mn3.5+ 4 c 0.08285(5) 0.59752(4) 0.25 1. 0
O1 O2- 4 c 0.2925(3) 0.6541(2) 0.25 1. 0
O2 O2- 4 c 0.3817(3) 0.9803(2) 0.25 1. 0
O3 O2- 4 c 0.4735(3) 0.1982(2) 0.25 1. 0
O4 O2- 4 c 0.0729(3) 0.9146(2) 0.25 1. 0

loop_
_atom_site_aniso_label
_atom_site_aniso_type_symbol
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Na1 Na1+ 0.0091(5) 0.0116(5) 0.0121(5) -0.0020(4) 0 0
Mn1 Mn3.5+ 0.00792(16) 0.00877(17) 0.00405(18) -0.00212(14) 0 0
Mn2 Mn3.5+ 0.00697(16) 0.00735(15) 0.00404(18) 0.00062(13) 0 0
O1 O2- 0.0090(9) 0.0155(11) 0.0093(10) 0.0017(8) 0 0
O2 O2- 0.0151(11) 0.0123(10) 0.0089(10) -0.0025(8) 0 0
O3 O2- 0.0165(11) 0.0077(8) 0.0089(10) -0.0016(8) 0 0
O4 O2- 0.0104(9) 0.0124(9) 0.0084(10) -0.0020(8) 0 0
#End of data_172604-ICSD
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