#------------------------------------------------------------------------------
#$Date: 2016-02-13 20:28:24 +0100 (Sat 13 de Feb de 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/1/52/46/1524617.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_1524617
loop_
_publ_author_name
'Jiang Ling'
'Chang Chen-Kang'
'Mao Dali'
'Feng Chuan-Li'
_publ_section_title
;
 Concentration quenching of Eu(2+) in Ca2 Mg Si2 O7 : Eu(2+) phosphor
;
_journal_name_full               'Materials Science and Engineering B'
_journal_page_first              271
_journal_page_last               275
_journal_volume                  103
_journal_year                    2003
_chemical_formula_sum            'Ca1.96 Eu0.04 Mg O7 Si'
_chemical_name_systematic        '(Ca1.96 Eu0.04) Mg (Si2 O7)'
_space_group_IT_number           113
_symmetry_space_group_name_Hall  'P -4 2ab'
_symmetry_space_group_name_H-M   'P -4 21 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   7.836
_cell_length_b                   7.836
_cell_length_c                   5.0087
_cell_volume                     307.549
_citation_journal_id_ASTM        MSBTEK
_cod_data_source_file            JiangLing_MSBTEK_2003_87.cif
_cod_data_source_block           Ca1.96Eu0.04Mg1O7Si1
_cod_original_cell_volume        307.5487
_cod_original_formula_sum        'Ca1.96 Eu0.04 Mg1 O7 Si1'
_cod_database_code               1524617
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
y,-x,-z
-x,-y,z
-y,x,-z
x+1/2,-y+1/2,-z
-y+1/2,-x+1/2,z
-x+1/2,y+1/2,-z
y+1/2,x+1/2,z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Mg1 Mg+2 0 0 0 1 0.0
Si1 Si+4 0.1395 0.3577 0.9365 0.5 0.0
O1 O-2 0.5 0 0.179 1 0.0
O3 O-2 0.082 0.1885 0.7938 1 0.0
O2 O-2 0.1392 0.3538 0.255 0.5 0.0
Eu1 Eu+2 0.3322 0.1678 0.5056 0.02 0.0
Ca1 Ca+2 0.3322 0.1678 0.5056 0.98 0.0
