data_global
_chemical_name_mineral 'Tenorite'
loop_
_publ_author_name
'Asbrink S'
'Norrby L J'
_journal_name_full 'Acta Crystallographica, Section B'
_journal_volume 26 
_journal_year 1970
_journal_page_first 8
_journal_page_last 15
_publ_section_title
;
 A refinement of the crystal structure of copper(II) oxide,
 with a discussion of some exceptional E.s.d.'s
;
_database_code_amcsd 0018812
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Cu O'
_cell_length_a 4.6837
_cell_length_b 3.4226
_cell_length_c 5.1288
_cell_angle_alpha 90
_cell_angle_beta 99.54
_cell_angle_gamma 90
_cell_volume 81.080
_exptl_crystal_density_diffrn      6.516
_symmetry_space_group_name_H-M 'C 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Cu   0.25000   0.25000   0.00000
O   0.00000   0.41840   0.25000
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Cu 0.00573 0.00786 0.00454 0.00209 0.00134 0.00084
O 0.00680 0.01110 0.00560 0.00000 0.00300 0.00000