Structural and Thermodynamic Similarities of Phases in the Li‒Tt (Tt = Si, Ge) Systems: Redetermination of the Lithium-Rich Side of the Li‒Ge Phase Diagram and Crystal Structures of Li17Si4.0−xGex for x = 2.3, 3.1, 3.5, and 4 as well as Li4.1Ge
Fässler, Thomas F; Zeilinger, Michael; Dalton Transactions  (2014) –; doi:10.1039/c4dt00743c

data_7030892
_publ_section_title
;
 Structural and Thermodynamic Similarities of Phases in the Li--Tt (Tt =
 Si, Ge) Systems: Redetermination of the Lithium-Rich Side of the Li--Ge
 Phase Diagram and Crystal Structures of Li17Si4.0&#x2212;xGex for x =
 2.3, 3.1, 3.5, and 4 as well as Li4.1Ge
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/c4dt00743c
_journal_year                    2014
_chemical_formula_analytical     'Ge4 Li17'
_chemical_formula_moiety         'Ge4 Li17'
_chemical_formula_sum            'Ge4 Li17'
_chemical_formula_weight         408.34
_chemical_melting_point          '795 K, peritectic decomposition'
_chemical_name_common            'Lithium Germanide'
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           216
_symmetry_cell_setting           cubic
_symmetry_Int_Tables_number      216
_symmetry_space_group_name_Hall  'F -4 2 3'
_symmetry_space_group_name_H-M   'F -4 3 m'
_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            20
_cell_length_a                   18.8521(3)
_cell_length_b                   18.8521(3)
_cell_length_c                   18.8521(3)
_cell_measurement_reflns_used    9893
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      48.2820
_cell_measurement_theta_min      3.0563
_cell_volume                     6700.07(18)
_citation_year                   2014
_computing_cell_refinement
'SAINT Version 7.56a, Bruker AXS Inc., Madison, Wisconsin, USA, 2008. '
_computing_data_collection
;APEX suite of crystallographic software. APEX 2 Version 2008.4,
 Bruker AXS Inc., Madison, Wisconsin, USA, 2008.
;
_computing_data_reduction
'SAINT Version 7.56a, Bruker AXS Inc., Madison, Wisconsin, USA, 2008. '
_computing_molecular_graphics    'Diamond 3.2i (Crystal Impact 2012)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 16
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'phi- and omega-rotation'
_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  0.0474
_diffrn_reflns_av_sigmaI/netI    0.0166
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -37
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -37
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -37
_diffrn_reflns_number            67542
_diffrn_reflns_theta_full        45.26
_diffrn_reflns_theta_max         45.26
_diffrn_reflns_theta_min         1.87
_exptl_absorpt_coefficient_mu    8.832
_exptl_absorpt_correction_T_max  0.3286
_exptl_absorpt_correction_T_min  0.1235
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker, 2008b'
_exptl_crystal_colour            'metallic silver'
_exptl_crystal_density_diffrn    2.024
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3580
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.460
_refine_diff_density_min         -0.687
_refine_diff_density_rms         0.095
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.50(3)
_refine_ls_extinction_coef       0.000159(9)
_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   1.106
_refine_ls_matrix_type           full
_refine_ls_number_parameters     68
_refine_ls_number_reflns         2757
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.106
_refine_ls_R_factor_all          0.0220
_refine_ls_R_factor_gt           0.0183
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0129P)^2^+4.9450P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0368
_refine_ls_wR_factor_ref         0.0376
_reflns_number_gt                2547
_reflns_number_total             2757
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt00743c2.cif
_cod_data_source_block           Li17Ge4_RT
_cod_depositor_comments
;
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 
;
_cod_database_code               7030892