data_global
_chemical_name_mineral 'Boron'
loop_
_publ_author_name
'Parakhonskiy G'
'Dubrovinskaia N'
'Bykova E'
'Wirth R'
'Dubrovinsky L'
_journal_name_full 'High Pressure Research'
_journal_volume 33 
_journal_year 2013
_journal_page_first 673
_journal_page_last 683
_publ_section_title
;
 High pressure synthesis and investigation of single crystals
 of metastable boron phases
 Note: epsilon-trigonal phase
;
_database_code_amcsd 0020600
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'B5'
_cell_length_a 5.5940
_cell_length_b 5.5940
_cell_length_c 12.0756
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 327.253
_exptl_crystal_density_diffrn      2.469
_symmetry_space_group_name_H-M 'R -3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'x,x-y,z'
  '2/3+x,1/3+x-y,1/3+z'
  '1/3+x,2/3+x-y,2/3+z'
  'y,x,-z'
  '2/3+y,1/3+x,1/3-z'
  '1/3+y,2/3+x,2/3-z'
  '-x+y,y,z'
  '2/3-x+y,1/3+y,1/3+z'
  '1/3-x+y,2/3+y,2/3+z'
  '-x,-x+y,-z'
  '2/3-x,1/3-x+y,1/3-z'
  '1/3-x,2/3-x+y,2/3-z'
  '-y,-x,z'
  '2/3-y,1/3-x,1/3+z'
  '1/3-y,2/3-x,2/3+z'
  'x-y,-y,-z'
  '2/3+x-y,1/3-y,1/3-z'
  '1/3+x-y,2/3-y,2/3-z'
  'y,-x+y,-z'
  '2/3+y,1/3-x+y,1/3-z'
  '1/3+y,2/3-x+y,2/3-z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
  '-x,-y,-z'
  '2/3-x,1/3-y,1/3-z'
  '1/3-x,2/3-y,2/3-z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  'x-y,x,-z'
  '2/3+x-y,1/3+x,1/3-z'
  '1/3+x-y,2/3+x,2/3-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
B1   0.00000   0.00000   0.50000   0.01100
B2   0.16260   0.83740   0.64130   0.00700
B3   0.22550   0.77450   0.78050   0.00800
B4   0.00000   0.00000   0.61920   0.00300