data_9008016
_publ_section_title
;Quantitative Spectrometric studies of ammonium and of potassium cupric
 chloride dihydrate (NH4)2CuCl4*2H2O and K2CuCl4*2H2O
;
_journal_name_full               'Zeitschrift fur Kristallographie'
_journal_page_first              35
_journal_page_last               47
_journal_volume                  88
_journal_year                    1934
_chemical_formula_structural     (NH4)2CuCl4*2H2O
_chemical_formula_sum            'Cl4 Cu N2 O2'
_space_group_IT_number           136
_symmetry_space_group_name_Hall  '-P 4n 2n'
_symmetry_space_group_name_H-M   'P 42/m n m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   7.595
_cell_length_b                   7.595
_cell_length_c                   7.965
_cell_volume                     459.453
_exptl_crystal_density_diffrn    1.918
_[local]_cod_chemical_formula_sum_orig 'Cu N2 O2 Cl4'
_cod_database_code               9008016
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,-x,z
y,x,-z
1/2+y,1/2-x,1/2-z
1/2-y,1/2+x,1/2+z
1/2+x,1/2-y,1/2+z
1/2-x,1/2+y,1/2-z
x,y,-z
-x,-y,z
y,x,z
-y,-x,-z
1/2-y,1/2+x,1/2-z
1/2+y,1/2-x,1/2+z
1/2-x,1/2+y,1/2+z
1/2+x,1/2-y,1/2-z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Cu 0.00000 0.00000 0.00000
N 0.00000 0.50000 0.25000
O 0.00000 0.00000 0.26000
Cl1 0.21700 0.21700 0.00000
Cl2 0.22100 0.22100 0.50000
