Silylgermylpotassium Compounds
Fischer, Jelena; Baumgartner, Judith; Marschner, Christoph; Organometallics 24 (2005) 1263–; doi:10.1021/om0491894

data_4075705
_publ_section_title
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 Silylgermylpotassium Compounds
;
_journal_issue                   6
_journal_name_full               Organometallics
_journal_page_first              1263
_journal_paper_doi               10.1021/om0491894
_journal_volume                  24
_journal_year                    2005
_chemical_formula_sum            'C18 H54 Ge2 Si6 Sn'
_chemical_formula_weight         703.02
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_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                 92.68(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.901(3)
_cell_length_b                   9.5497(19)
_cell_length_c                   22.498(5)
_cell_measurement_temperature    100(2)
_cell_volume                     3412.6(12)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_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, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker P4'
_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  0.0706
_diffrn_reflns_av_sigmaI/netI    0.0627
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            10582
_diffrn_reflns_theta_full        24.00
_diffrn_reflns_theta_max         24.00
_diffrn_reflns_theta_min         1.81
_diffrn_standards_interval_time  10
_exptl_absorpt_coefficient_mu    2.692
_exptl_absorpt_correction_T_max  0.6150
_exptl_absorpt_correction_T_min  0.3838
_exptl_absorpt_correction_type   SADABS
_exptl_absorpt_process_details   XPREP
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.368
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             1440
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.20
_refine_diff_density_max         3.041
_refine_diff_density_min         -1.395
_refine_diff_density_rms         0.275
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.219
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     132
_refine_ls_number_reflns         2658
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.219
_refine_ls_R_factor_all          0.0985
_refine_ls_R_factor_gt           0.0918
_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^)+(0.0497P)^2^+281.7820P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2229
_refine_ls_wR_factor_ref         0.2252
_reflns_number_gt                2355
_reflns_number_total             2658
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om0491894si20041222_090130.cif
_cod_data_source_block           275j
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        3412.7(12)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4075705