CsB3GeO7 and K2B2Ge3O10: Explorations of New Second-Order Nonlinear Optical Materials in the Borogermanate Systems
Fang Kong; Hai-Long Jiang; Ting Hu; Jiang-Gao Mao; Inorganic Chemistry 47 (2008) 10611–10617; doi:10.1021/ic801292p

data_4306485
_publ_section_title
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CsB3GeO7 and K2B2Ge3O10: Explorations of New Second-Order Nonlinear Optical
Materials in the Borogermanate Systems
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_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10611
_journal_page_last               10617
_journal_paper_doi               10.1021/ic801292p
_journal_volume                  47
_journal_year                    2008
_chemical_formula_sum            'B2 Ge3 K2 O10'
_chemical_formula_weight         477.59
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'I 2y'
_symmetry_space_group_name_H-M   'I 1 2 1'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.696(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.860(6)
_cell_length_b                   6.160(2)
_cell_length_c                   12.000(9)
_cell_measurement_reflns_used    1328
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.4603
_cell_measurement_theta_min      2.5689
_cell_volume                     870.7(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.965
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device_type  Saturn70
_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  0.0191
_diffrn_reflns_av_sigmaI/netI    0.0434
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            3274
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         2.28
_exptl_absorpt_coefficient_mu    11.292
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8592
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    3.643
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.787
_refine_diff_density_min         -0.702
_refine_diff_density_rms         0.126
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.025(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_matrix_type           full
_refine_ls_number_parameters     143
_refine_ls_number_reflns         1862
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0243
_refine_ls_R_factor_gt           0.0222
_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^)+(0.0288P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0577
_refine_ls_wR_factor_ref         0.0581
_reflns_number_gt                1732
_reflns_number_total             1862
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic801292p_si_001_2.cif
_cod_data_source_block           K2B2Ge3O10
_cod_depositor_comments
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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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'I 2'
_cod_database_code               4306485