data_2005541
_journal_name_full  'Acta Crystallographica'
_journal_year       1996
_journal_volume    	C52
_journal_page_first    	2381
_journal_page_last    	2384
_publ_section_title    	
;
Redetermination of the Structure of La~2~Cu~2~O~5~
by Neutron Powder Diffraction
;
_chemical_formula_sum    	'La2 Cu2 O5'
_chemical_formula_weight    	484.90
_symmetry_cell_setting    	orthorhombic
loop_
_symmetry_equiv_pos_as_xyz
    '+x, +y, +z'
    '-x, -y, +z'
    '1/2+x, 1/2-y, -z'
    '1/2-x, 1/2+y, -z'
    '-x, -y, -z'
    '+x, +y, -z'
    '1/2-x, 1/2+y, +z'
    '1/2+x, 1/2-y, +z'
_symmetry_space_group_name_H-M    	'P b a m'
_cell_length_a    	5.54640(13)
_cell_length_b    	10.4720(3)
_cell_length_c    	3.87959(8)
_cell_angle_alpha    	90
_cell_angle_beta    	90
_cell_angle_gamma    	90
_cell_volume    	225.334(9)
_cell_formula_units_Z    	2
_exptl_crystal_density_diffrn    	7.147
_cell_measurement_temperature    	296
loop_
_atom_site_label
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_B_iso_or_equiv
    La h 0.3117(3) 0.3610(2) .5 0.73(4)
    Cu g 0.2926(3) 0.1058(2) 0 0.62(4)
    O1 h 0.2834(5) 0.1022(2) .5 1.14(5)
    O2 g 0.0755(4) 0.2906(2) 0 0.75(5)
    O3 a 0 0 0 1.02(8)