Nonlinear Optical Crystal Y~x~La~y~Sc~z~(BO~3~)~4~ (x + y + z = 4)
Ye, Ning; Stone-Sundberg, Jennifer L.; Hruschka, Michael A.; Aka, Gerard; Kong, Wei; Keszler, Douglas A.; Chemistry of Materials 17 (2005) 2687–2692; doi:10.1021/cm050090c

data_1100933
_publ_section_title
;
 Nonlinear Optical Crystal Y~x~La~y~Sc~z~(BO~3~)~4~ (x + y + z = 4)
;
_journal_coden_ASTM              CMATEX
_journal_issue                   10
_journal_name_full               'Chemistry of Materials'
_journal_page_first              2687
_journal_page_last               2692
_journal_paper_doi               10.1021/cm050090c
_journal_volume                  17
_journal_year                    2005
_chemical_absolute_configuration unk
_chemical_formula_sum            'B4 La0.72 O12 Sc2.71 Y0.57'
_chemical_formula_weight         507.78
_space_group_IT_number           155
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'R 3 2"'
_symmetry_space_group_name_H-M   'R 3 2 :H'
_audit_creation_date             2004-07-05T21:04:02-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   9.7739(10)
_cell_length_b                   9.7739(10)
_cell_length_c                   7.9456(14)
_cell_measurement_temperature    298(2)
_cell_volume                     657.34(15)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_measured_fraction_theta_full 1
_diffrn_measured_fraction_theta_max 1
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            2574
_diffrn_reflns_theta_full        30.04
_diffrn_reflns_theta_max         30.04
_diffrn_reflns_theta_min         3.52
_exptl_absorpt_coefficient_mu    9.257
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    3.848
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             708.6
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.07
_geom_special_details
;
 All esds (except the esd in the dihedral angle between two l.s. planes)
 are estimated using the full covariance matrix.  The cell esds are taken
 into account individually in the estimation of esds in distances, angles
 and torsion angles; correlations between esds in cell parameters are only
 used when they are defined by crystal symmetry.  An approximate (isotropic)
 treatment of cell esds is used for estimating esds involving l.s. planes.
;
_refine_diff_density_max         0.889
_refine_diff_density_min         -1.353
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.052(5)
_refine_ls_extinction_coef       0.0104(18)
_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   1.081
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     35
_refine_ls_number_reflns         437
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_gt           0.0296
_refine_ls_shift/su_max          0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+7.3707P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0815
_reflns_number_gt                437
_reflns_number_total             437
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             4000502
_cod_data_source_file            cm050090csi20050114_020153.cif
_cod_data_source_block           xl
_cod_original_sg_symbol_H-M      'R 3 2'
_cod_database_code               1100933