data_4343851
_publ_section_title
;
 Synthesis and structure of alkaline earth silicon nitrides: Ba Si N2, Sr
 Si N2, and Ca Si N2
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3998
_journal_page_last               4006
_journal_volume                  43
_journal_year                    2004
_chemical_formula_sum            'N2 Si Sr'
_chemical_name_systematic        'Sr Si N2'
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 113.518
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.98139
_cell_length_b                   7.32121
_cell_length_c                   5.50425
_cell_volume                     221.015
_citation_journal_id_ASTM        INOCAJ
_cod_data_source_file            Gal_INOCAJ_2004_453.cif
_cod_data_source_block           N2Si1Sr1
_cod_original_cell_volume        221.0149
_cod_chemical_formula_sum_orig   'N2 Si1 Sr1'
_cod_database_code               4343851
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,y+1/2,-z+1/2
-x,-y,-z
x,-y-1/2,z-1/2
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
Sr1 Sr+2 0.33876 0.57382 0.1755 1 0.0
N1 N-3 0.20829 0.58773 0.58406 1 0.0
Si1 Si+4 0.1049 0.1419 0.0682 1 0.0
N2 N-3 0.21543 0.22439 0.3862 1 0.0
