data_1533153
_publ_section_title
;
 Neutron Scattering Study of the Magnetism of Rb2 Cr Cl4, a
 Two-Dimensional Easy-Plane Ferromagnet
;
_journal_name_full               'Physica B and C (Netherland) (79,1975-)'
_journal_page_first              657
_journal_page_last               659
_journal_volume                  86
_journal_year                    1977
_chemical_formula_sum            'Cl4 Cr Rb2'
_chemical_name_systematic        'Rb2 (Cr Cl4)'
_space_group_IT_number           139
_symmetry_space_group_name_Hall  '-I 4 2'
_symmetry_space_group_name_H-M   'I 4/m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   5.142
_cell_length_b                   5.142
_cell_length_c                   15.769
_cell_volume                     416.935
_citation_journal_id_ASTM        PHBCDQ
_cod_data_source_file            Fair_PHBCDQ_1977_1017.cif
_cod_data_source_block           Cl4Cr1Rb2
_cod_chemical_formula_sum_orig   'Cl4 Cr1 Rb2'
_cod_database_code               1533153
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x,z
-x,-y,z
y,-x,z
x,-y,-z
y,x,-z
-x,y,-z
-y,-x,-z
-x,-y,-z
y,-x,-z
x,y,-z
-y,x,-z
-x,y,z
-y,-x,z
x,-y,z
y,x,z
x+1/2,y+1/2,z+1/2
-y+1/2,x+1/2,z+1/2
-x+1/2,-y+1/2,z+1/2
y+1/2,-x+1/2,z+1/2
x+1/2,-y+1/2,-z+1/2
y+1/2,x+1/2,-z+1/2
-x+1/2,y+1/2,-z+1/2
-y+1/2,-x+1/2,-z+1/2
-x+1/2,-y+1/2,-z+1/2
y+1/2,-x+1/2,-z+1/2
x+1/2,y+1/2,-z+1/2
-y+1/2,x+1/2,-z+1/2
-x+1/2,y+1/2,z+1/2
-y+1/2,-x+1/2,z+1/2
x+1/2,-y+1/2,z+1/2
y+1/2,x+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
Rb1 Rb+1 0 0 0.362 1 0.0
Cr1 Cr+2 0 0 0 1 0.0
Cl1 Cl-1 0 0.5 0.1544 1 0.0
