data_1008964
_chemical_name_systematic          'Niobium manganese germanide (1/1/1)'
_chemical_formula_structural       'Nb Mn Ge'
_chemical_formula_sum              'Ge Mn Nb'
_publ_section_title
;
Etude sur la structure cristallographique du compose Nb Mn Ge
;
loop_
_publ_author_name
  'Roy-Montreuil, J'
  'Deyris, B'
  'Fruchart, R'
  'Michel, A'
_journal_name_full
;
Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences,
Serie C, Sciences Chimiques (1966-)
;
_journal_coden_ASTM                CHDCAQ
_journal_volume                    266
_journal_year                      1968
_journal_page_first                615
_journal_page_last                 617
_cell_length_a                     6.540(1)
_cell_length_b                     6.540(1)
_cell_length_c                     3.631(2)
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  120
_cell_volume                       134.5
_cell_formula_units_Z              3
_symmetry_space_group_name_H-M     'P -6 2 m'
_symmetry_Int_Tables_number        189
_symmetry_cell_setting             hexagonal
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-y,x-y,z'
  'y-x,-x,z'
  'x,y,-z'
  '-y,x-y,-z'
  'y-x,-x,-z'
  'y,x,z'
  'x-y,-y,z'
  '-x,y-x,z'
  'y,x,-z'
  'x-y,-y,-z'
  '-x,y-x,-z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Nb0    0.000
  Mn0    0.000
  Ge0    0.000
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_calc_flag
  Nb1   Nb0    3 g 0.582 0. 0.5 1.  0 d
  Mn1   Mn0    3 f 0.252 0. 0. 1.  0 d
  Ge1   Ge0    2 c 0.3333 0.6667 0. 1.  0 d
  Ge2   Ge0    1 b 0. 0. 0.5 1.  0 d