data_9012017
_publ_section_title
;
 A high temperature precision X-ray camera: some measurements of the thermal
 coefficients of expansion of beryllium
 Locality: synthetic
 Sample: at T = 385 C
;
_journal_name_full               'Journal of Applied Physics'
_journal_page_first              908
_journal_page_last               917
_journal_paper_doi               10.1063/1.1698252
_journal_volume                  20
_journal_year                    1949
_chemical_formula_sum            Be
_chemical_name_common            Beryllium
_space_group_IT_number           194
_symmetry_space_group_name_Hall  '-P 6c 2c'
_symmetry_space_group_name_H-M   'P 63/m m c'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   2.2995
_cell_length_b                   2.2995
_cell_length_c                   3.6009
_cell_volume                     16.490
_diffrn_ambient_temperature      658.15
_exptl_crystal_density_diffrn    1.815
_cod_database_code               9012017
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-x+y,1/2+z
x,x-y,1/2-z
-x+y,-x,1/2-z
x-y,x,1/2+z
-y,-x,z
y,x,-z
y,-x+y,-z
-y,x-y,z
x-y,-y,1/2+z
-x+y,y,1/2-z
x,y,1/2-z
-x,-y,1/2+z
x,x-y,z
-x,-x+y,-z
x-y,x,-z
-x+y,-x,z
y,x,1/2+z
-y,-x,1/2-z
-y,x-y,1/2-z
y,-x+y,1/2+z
-x+y,y,z
x-y,-y,-z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Be 0.33333 0.66667 0.25000
