#------------------------------------------------------------------------------
#$Date: 2008-01-13 22:15:36 +0000 (Sun, 13 Jan 2008) $
#$Revision: 14 $
#$URL: svn://www.crystallography.net/cod/cif/2/2200085.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_2200085
_journal_name_full  'Acta Crystallographica, Section E'
_journal_year  2001
_journal_volume  57
_journal_page_first  i12
_journal_page_last  i14
_publ_section_title
;
Dieuropium(III) silicodimonophosphatediphosphate
;
loop_
_publ_author_name
  'Bennazha, Jamal'
  'Boukhari, Ali'
  'Holt, Elizabeth M.'
_chemical_name_common  'Dieuropium(III) silicodimonophosphatediphosphate'
_chemical_formula_sum  'Eu2 O15 P4 Si'
_chemical_formula_structural  'Eu2 Si (P O4)2 (P2 O7)'
_chemical_formula_iupac  'Eu2 Si (P O4)2 (P2 O7)'
_chemical_formula_weight  695.90
_symmetry_cell_setting  orthorhombic
_symmetry_space_group_name_H-M  'P 21 21 2'
loop_
_symmetry_equiv_pos_as_xyz
  'x, y, z'
  '-x, -y, z'
  '-x+1/2, y+1/2, -z'
  'x+1/2, -y+1/2, -z'
_cell_length_a  7.0560(10)
_cell_length_b  16.376(3)
_cell_length_c  5.5850(10)
_cell_angle_alpha  90.00
_cell_angle_beta  90.00
_cell_angle_gamma  90.00
_cell_volume  645.34(19)
_cell_formula_units_Z  2
_cell_measurement_temperature  293(2)
_exptl_crystal_density_diffrn  3.581
_diffrn_ambient_temperature  293(2)
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
_atom_site_type_symbol
  Eu1  .08893(4)  .284646(19)  .86217(6)  .01108(10) Uani d . 1 . . Eu
  Si1  .0000  .0000 1.4557(5)  .0133(5) Uani d S 1 . . Si
  P1  .0855(2)  .16894(9) 1.3063(3)  .0112(3) Uani d . 1 . . P
  O11  .2587(6)  .1945(3) 1.1648(10)  .0167(10) Uani d . 1 . . O
  O12  -.0798(6)  .2069(3) 1.1706(9)  .0188(10) Uani d . 1 . . O
  O13  .0651(8)  .0734(3) 1.2809(9)  .0190(10) Uani d . 1 . . O
  O14  .0910(9)  .1889(3) 1.5690(9)  .0216(10) Uani d . 1 . . O
  P2  .3633(2)  -.07078(10) 1.6411(4)  .0134(3) Uani d . 1 . . P
  O21  .378(3)  -.1316(9) 1.447(4)  .025(2) Uani d P  .455(12) . . O
  O21'  .407(2)  -.1026(7) 1.396(3)  .025(2) Uani d P  .545(12) . . O
  O22  .5000  .0000 1.589(5)  .039(3) Uani d SP  .455(12) . . O
  O22'  .5000  .0000 1.703(4)  .039(3) Uani d SP  .545(12) . . O
  O23  .400(3)  -.1017(9) 1.893(3)  .026(2) Uani d P  .455(12) . . O
  O23'  .361(2)  -.1278(8) 1.836(2)  .026(2) Uani d P  .545(12) . . O
  O24  .1666(7)  -.0263(3) 1.6321(11)  .0244(11) Uani d . 1 . . O
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
  Eu1  .00969(13)  .01415(14)  .00939(14)  -.00079(12)  -.00027(12)
  .00019(13)
  Si1  .0139(11)  .0104(10)  .0155(12)  .0008(9)  .000  .000
  P1  .0109(6)  .0115(6)  .0110(7)  -.0013(6)  -.0004(6)  .0010(5)
  O11  .0101(18)  .021(2)  .019(2)  .0008(16)  -.002(2)  .0089(19)
  O12  .0083(17)  .025(2)  .023(2)  .002(2)  -.002(2)  .008(2)
  O13  .028(3)  .0118(19)  .017(2)  -.0018(19)  .006(2)  -.0021(18)
  O14  .025(2)  .024(2)  .016(2)  .000(2)  .000(3)  -.005(2)
  P2  .0131(7)  .0120(6)  .0150(7)  -.0005(5)  -.0008(7)  -.0005(7)
  O21  .032(5)  .013(6)  .030(6)  .002(5)  -.009(5)  -.012(5)
  O21'  .032(5)  .013(6)  .030(6)  .002(5)  -.009(5)  -.012(5)
  O22  .045(6)  .042(6)  .029(8)  -.030(5)  .000  .000
  O22'  .045(6)  .042(6)  .029(8)  -.030(5)  .000  .000
  O23  .045(6)  .021(6)  .011(5)  .003(5)  -.011(4)  .006(4)
  O23'  .045(6)  .021(6)  .011(5)  .003(5)  -.011(4)  .006(4)
  O24  .020(2)  .032(3)  .022(3)  .012(2)  -.006(3)  -.003(3)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
  Eu1 O21 3_557 2.217(18) yes
  Eu1 O21' 3_557 2.344(13) yes
  Eu1 O23 3_558 2.309(15) yes
  Eu1 O23' 3_558 2.240(12) yes
  Eu1 O14 1_554 2.267(5) yes
  Eu1 O12 4_557 2.349(4) yes
  Eu1 O11 4_457 2.360(4) yes
  Eu1 O12 . 2.451(5) yes
  Eu1 O11 . 2.544(5) yes
  Si1 O24 . 1.593(6) yes
  Si1 O24 2 1.593(6) yes
  Si1 O13 2 1.615(5) yes
  Si1 O13 . 1.615(5) yes
  P1 O11 . 1.514(5) yes
  P1 O12 . 1.523(5) yes
  P1 O13 . 1.577(5) yes
  P1 O14 . 1.504(5) yes
  P2 O21 . 1.476(18) yes
  P2 O21' . 1.496(15) yes
  P2 O22 . 1.536(5) yes
  P2 O22' . 1.547(5) yes
  P2 O23 . 1.520(14) yes
  P2 O23' . 1.436(12) yes
  P2 O24 . 1.568(5) yes