#------------------------------------------------------------------------------
#$Date: 2010-01-30 13:59:17 +0000 (Sat, 30 Jan 2010) $
#$Revision: 966 $
#$URL: svn://www.crystallography.net/cod/cif/2/2002644.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_2002644
_chemical_name_systematic          'Europium(II) beryllium digadolinium oxide'
_chemical_formula_structural       'Eu Be Gd2 O5'
_chemical_formula_sum              'Be Eu Gd2 O5'
_publ_section_title
;
Zur Kenntnis von Eu Be Gd2 O5 mit einem Beitrag ueber Phasen der
Zusammensetzung M(1-x) M'(x) Be Ln2 O5: Ca0.4 Sr0.6 Be Sm2 O5, Ba0.25
Ca0.75 Be Nd2 O5 und Ba0.36 Sr0.64 Be Nd2 O5
;
loop_
_publ_author_name
  'Mueller-Buschbaum, Hk'
  'Frenzen, S'
_journal_name_full
;
Zeitschrift fuer Naturforschung, Teil B. Anorganische Chemie,
Organische Chemie (42,1987-)
;
_journal_volume                    49
_journal_year                      1994
_journal_page_first                919
_journal_page_last                 922
_cell_length_a                     7.126(2)
_cell_length_b                     6.457(5)
_cell_length_c                     9.394(9)
_cell_angle_alpha                  90
_cell_angle_beta                   90.40(3)
_cell_angle_gamma                  90
_cell_volume                       432.2
_cell_formula_units_Z              4
_symmetry_space_group_name_H-M     'P 1 21/c 1'
_symmetry_Int_Tables_number        14
_symmetry_cell_setting             monoclinic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,1/2+y,1/2-z'
  '-x,-y,-z'
  'x,1/2-y,1/2+z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Eu2+   2.000
  Gd3+   3.000
  Be2+   2.000
  O2-   -2.000
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
  Eu1   Eu2+   4 e 0.0205(3) 0.0788(4) 0.8273(2) 1.  0 d
  Gd1   Gd3+   4 e 0.5231(3) 0.9194(4) 0.1749(2) 1.  0 d
  Gd2   Gd3+   4 e 0.2500(2) 0.5969(3) 0.9768(2) 1.  0 d
  Be1   Be2+   4 e 0.2507(13) 0.1881(13) 0.0954(13) 1.  0 d
  O1    O2-    4 e 0.940(1) 0.809(1) 0.436(1) 1.  0 d
  O2    O2-    4 e 0.442(1) 0.177(1) 0.569(1) 1.  0 d
  O3    O2-    4 e 0.265(1) 0.663(1) 0.220(1) 1.  0 d
  O4    O2-    4 e 0.261(1) 0.128(1) 0.279(1) 1.  0 d
  O5    O2-    4 e 0.270(1) 0.524(1) 0.504(1) 1.  0 d
_refine_ls_R_factor_all            0.059
_cod_database_code 2002644