A series of novel rare-earth bismuth tungstate compounds LnBiW(2)O(9) (Ln = Ce, Sm, Eu, Er): Synthesis, crystal structure, optical and electronic properties.
Li, Ye-Yu; Cheng, Wen-Dan; Zhang, Hao; Lin, Chen-Sheng; Zhang, Wei-Long; Geng, Lei; Chai, Guo-Liang; Luo, Zhong-Zhen; He, Zhang-Zhen; Dalton transactions (Cambridge, England : 2003) 40 (2011) 7357–7364; doi:10.1039/c1dt10460h

data_7016235
_publ_section_title
;
 A series of novel rare-earth bismuth tungstate compounds LnBiW(2)O(9)
 (Ln = Ce, Sm, Eu, Er): Synthesis, crystal structure, optical and
 electronic properties.
;
_journal_issue                   28
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7357
_journal_page_last               7364
_journal_paper_doi               10.1039/c1dt10460h
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         'Bi Er O9 W2'
_chemical_formula_sum            'Bi Er O9 W2'
_chemical_formula_weight         887.94
_chemical_name_systematic
;
?
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   none
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   32.112(2)
_cell_length_b                   5.6402(2)
_cell_length_c                   3.9579(2)
_cell_measurement_reflns_used    1824
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.4603
_cell_measurement_theta_min      2.5370
_cell_volume                     716.85(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 13.6612
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  Mercury2
_diffrn_measurement_method       CCD_Profile_fitting
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0754
_diffrn_reflns_av_sigmaI/netI    0.0520
_diffrn_reflns_limit_h_max       39
_diffrn_reflns_limit_h_min       -41
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            5104
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         2.54
_diffrn_standards_number         1038
_exptl_absorpt_coefficient_mu    68.072
_exptl_absorpt_correction_T_max  0.2346
_exptl_absorpt_correction_T_min  0.0450
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    8.227
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       strip
_exptl_crystal_F_000             1484
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.03
_refine_diff_density_max         2.592
_refine_diff_density_min         -3.037
_refine_diff_density_rms         0.758
_refine_ls_extinction_coef       0.00092(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     71
_refine_ls_number_reflns         896
_refine_ls_number_restraints     36
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0383
_refine_ls_R_factor_gt           0.0354
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0419P)^2^+11.1456P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0879
_refine_ls_wR_factor_ref         0.0900
_reflns_number_gt                851
_reflns_number_total             896
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10460h.txt
_cod_data_source_block           a2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      Pnma
_cod_database_code               7016235