Molten Flux Synthesis of an Analogous Series of Layered Alkali Samarium Selenogermanate Compounds
Benjamin R. Martin; Peter K. Dorhout; Inorganic Chemistry 43 (2004) 385–391; doi:10.1021/ic034724y

data_4310303
_publ_contact_author
;
    Peter K. Dorhout
    Department of Chemistry
    Colorado State University
    Fort Collins, CO  80523
    USA
;
_publ_contact_author_email       pkd@lamar.colostate.edu
_publ_contact_author_fax         970-491-1801
_publ_contact_author_phone       970-491-0624
_publ_section_title
;
 Molten Flux Synthesis of an Analogous Series of Layered Alkali Samarium
 Selenogermanate Compounds
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              385
_journal_page_last               391
_journal_paper_doi               10.1021/ic034724y
_journal_volume                  43
_journal_year                    2004
_chemical_formula_sum            'Ge Rb Se4 Sm'
_chemical_formula_weight         624.25
_chemical_name_common
;
Rubidium Samarium Tetraselenogermanate 
;
_chemical_name_systematic
; 
Rubidium Samarium Tetraselenogermanate  
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_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                   6.7347(8)
_cell_length_b                   7.0185(9)
_cell_length_c                   17.723(2)
_cell_measurement_temperature    298(2)
_cell_volume                     837.72(17)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method
'1800 frames, Phi = 0, 120, 240\% , Delta Omega = 0.3\% '
_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  0.0901
_diffrn_reflns_av_sigmaI/netI    0.0812
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            7076
_diffrn_reflns_theta_full        23.25
_diffrn_reflns_theta_max         23.25
_diffrn_reflns_theta_min         3.12
_exptl_absorpt_coefficient_mu    33.577
_exptl_absorpt_correction_T_max  0.9280
_exptl_absorpt_correction_T_min  0.5713
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            Red-orange
_exptl_crystal_density_diffrn    4.950
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             1068
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.980
_refine_diff_density_min         -1.021
_refine_diff_density_rms         0.250
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.51(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.886
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     65
_refine_ls_number_reflns         1196
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.886
_refine_ls_R_factor_all          0.0482
_refine_ls_R_factor_gt           0.0336
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0171P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0608
_refine_ls_wR_factor_ref         0.0635
_reflns_number_gt                978
_reflns_number_total             1196
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic034724ysi20031027_040553_2.cif
_cod_data_source_block           pdcd167
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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 

The following automatic conversions were performed:
data name '_publ_contact_autor' replaced with '_publ_contact_author'
as specified in the replacement file
'/home/antanas/src/cod-tools/trunk/data/replacement-values/replacement_tags.lst'.

Automatic conversion script
Id: cif_correct_tags 4998 2017-03-02 13:24:31Z antanas 
;
_cod_original_cell_volume        837.71(18)
_cod_original_formula_sum        'Rb Sm Ge Se4'
_cod_database_code               4310303