data_2005334
_journal_name_full  'Acta Crystallography'
_journal_year       1996
_journal_volume  C52
_journal_page_first  2125
_journal_page_last  2127
_publ_section_title
;
Nd~4~V~5~Si~4~O~22~
;
_chemical_formula_iupac  'Nd4 V5 Si4 O22'
_chemical_formula_moiety  'Nd4 O22 Si4 V5'
_chemical_formula_sum  'Nd4 O22 Si4 V5'
_chemical_formula_weight  1296.00
_symmetry_cell_setting  monoclinic
loop_
_symmetry_equiv_pos_as_xyz
 x,y,z
 -x,y,-z
 1/2+x,1/2+y,z
 1/2-x,1/2+y,-z
 -x,-y,-z
 x,-y,z
 1/2-x,1/2-y,-z
 1/2+x,1/2-y,z
_symmetry_space_group_name_H-M  'C 2/m'
_cell_length_a  13.377(4)
_cell_length_b  5.589(4)
_cell_length_c  10.983(3)
_cell_angle_alpha  90
_cell_angle_beta  100.61(2)
_cell_angle_gamma  90
_cell_volume  807(1)
_cell_formula_units_Z  2
_exptl_crystal_density_diffrn  5.33
_cell_measurement_temperature  293
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
 Nd1 0.35659(3) 0 0.24327(4) 0.00894(7)
 Nd2 0.07178(3) 0 0.24941(4) 0.01245(9)
 V1 0.5 0 0.5 0.0071(3)
 V2 0 0 0.5 0.0062(3)
 V3 0.25 0.25 0.5 0.0038(2)
 V4 0.5 0 1 0.0043(3)
 Si1 0.2952(2) 0 0.7703(2) 0.0042(4)
 Si2 0.1372(2) 0 0.9571(2) 0.0040(3)
 O1 0.3501(4) 0 0.4848(6) 0.008(1)
 O2 0.1439(4) 0 0.4775(5) 0.0055(9)
 O3 0.0216(3) 0.2498(8) 0.6330(4) 0.0086(7)
 O4 0.2743(4) 0.2382(8) 0.6863(4) 0.0096(7)
 O5 0.4094(5) 0 0.8423(7) 0.025(2)
 O6 0.1887(5) 0 0.0990(5) 0.009(1)
 O7 0.0678(5) 0.235(1) 0.9130(5) 0.029(1)
 O8 0.2153(5) 0 0.8623(7) 0.029(2)