A New Europium Borosilicate, Eu~3~BSi~2~O~10~
Chi, L.; Chen, H.; Deng, S.; Zhuang, H.; Huang, J.; Acta Crystallographica Section C 52 (1996) 2385–2387; doi:10.1107/S0108270196005069

data_2005491
_publ_section_title
;
 A New Europium Borosilicate, Eu~3~BSi~2~O~10~
;
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              2385
_journal_page_last               2387
_journal_paper_doi               10.1107/S0108270196005069
_journal_volume                  52
_journal_year                    1996
_chemical_formula_iupac          'Eu3 B1 Si2 O10'
_chemical_formula_moiety         'B1 Eu3 O10 Si2'
_chemical_formula_sum            'B Eu3 O10 Si2'
_chemical_formula_weight         682.86
_chemical_name_systematic
;
Trieuropium Boron Disilicate
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_type_scat_source           IntTabIV
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   9.673(1)
_cell_length_b                   6.992(3)
_cell_length_c                   22.867(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293
_cell_measurement_theta_max      17
_cell_measurement_theta_min      14
_cell_volume                     1546.6(7)
_computing_cell_refinement       CAD-4
_computing_data_collection       'CAD-4 (Enraf-Nonius, 1977)'
_computing_data_reduction        'MolEN (Lorentz polarization) (Fair, 1990)'
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_publication_material  'GCIF, local program'
_computing_structure_refinement  'MolEN LSFM'
_computing_structure_solution    'MolEN (Patterson)'
_diffrn_measurement_device       'Enraf-Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.000
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -41
_diffrn_reflns_number            5373
_diffrn_reflns_theta_max         40.0
_diffrn_standards_decay_%        0.0
_diffrn_standards_interval_time  166
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    24.44
_exptl_absorpt_correction_T_max  0.997
_exptl_absorpt_correction_T_min  0.358
_exptl_absorpt_correction_type
'empirical, \y scans (North, Phillips & Mathews, 1968)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    5.87
_exptl_crystal_density_meas      ?
_exptl_crystal_description       needle
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.01
_refine_diff_density_max         6.94
_refine_diff_density_min         -1.56
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_obs   0.61
_refine_ls_number_parameters     146
_refine_ls_number_reflns         3286
_refine_ls_R_factor_obs          0.0527
_refine_ls_shift/esd_max         0.0004
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/[\s(F)^2^ + (0.020F)^2^ + 1.0]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_obs         0.0608
_reflns_number_observed          3286
_reflns_number_total             5373
_reflns_observed_criterion       refl_observed_if_I_>3.0_sigma(I)
_cod_data_source_file            du1155.cif
_cod_data_source_block           eu
_cod_depositor_comments
;
The following automatic conversions were performed:

'_geom_bond_publ_flag' value 'No' changed to 'no' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (22
times).

'_geom_bond_publ_flag' value 'Yes' changed to 'yes'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29 (37
times).

'_geom_angle_publ_flag' value 'No' changed to 'no' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29 (619 times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'w = 1/[\s(F)^2^ + (0.020F)^2^ +
1.0]' was changed to 'calc'. New tag '_refine_ls_weighting_details'
was created. The value of the new tag was set to 'w = 1/[\s(F)^2^ +
(0.020F)^2^ + 1.0]'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        1546.6(8)
_cod_original_formula_sum        'B1 Eu3 O10 Si2'
_cod_database_code               2005491