Synthesis and Characterization of Four New Europium Group XIV Chalcogenides: K2EuTSe5 and KEuTS4(T = Si, Ge)
Evenson; Peter K. Dorhout; Inorganic Chemistry 40 (2001) 2409–2414; doi:10.1021/ic001248s

data_4319634
_publ_section_title
;
 Synthesis and Characterization of Four New Europium Group XIV
 Chalcogenides: K2EuTSe5 and KEuTS4(T = Si, Ge)
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2409
_journal_page_last               2414
_journal_paper_doi               10.1021/ic001248s
_journal_volume                  40
_journal_year                    2001
_chemical_formula_sum            'Eu K S4 Si'
_chemical_formula_weight         347.39
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 107.83(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.426(4)
_cell_length_b                   6.582(5)
_cell_length_c                   8.566(7)
_cell_measurement_temperature    170(2)
_cell_volume                     344.9(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      170(2)
_diffrn_measurement_device       'Bruker CCD'
_diffrn_measurement_method       '\w scans'
_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  0.0512
_diffrn_reflns_av_sigmaI/netI    0.0806
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            2293
_diffrn_reflns_theta_max         28.47
_diffrn_reflns_theta_min         2.50
_exptl_absorpt_coefficient_mu    10.952
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    3.345
_exptl_crystal_description       plate
_exptl_crystal_F_000             320
_exptl_crystal_size_max          0.09
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.18
_refine_diff_density_max         2.243
_refine_diff_density_min         -2.777
_refine_diff_density_rms         0.508
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.152
_refine_ls_goodness_of_fit_obs   1.100
_refine_ls_matrix_type           full
_refine_ls_number_parameters     64
_refine_ls_number_reflns         1536
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.152
_refine_ls_restrained_S_obs      1.100
_refine_ls_R_factor_all          0.0483
_refine_ls_R_factor_obs          0.0471
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0725P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1335
_refine_ls_wR_factor_obs         0.1250
_reflns_number_observed          1479
_reflns_number_total             1536
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            ic001248s_3.cif
_cod_data_source_block           p21
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0725P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0725P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        344.9(4)
_cod_database_code               4319634