An Anionic Heterosiliconoid with two Germanium Vertices
Klemmer, Lukas; Huch, Volker; Jana, Anukul; Scheschkewitz, David; Chemical Communications  (2019) –; doi:10.1039/C9CC04576G

data_7123906
_publ_section_title
;
 An Anionic Heterosiliconoid with two Germanium Vertices
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC04576G
_journal_year                    2019
_chemical_formula_moiety         'C83 H131 Ge2 Li O2 Si4, 0.75(C10 H8)'
_chemical_formula_sum            'C90.5 H137 Ge2 Li O2 Si4'
_chemical_formula_weight         1521.47
_chemical_properties_physical    Air-sensitive,Moisture-sensitive
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2019-06-05 deposited with the CCDC.    2019-07-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 119.264(2)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   38.5015(14)
_cell_length_b                   25.0063(10)
_cell_length_c                   25.1216(9)
_cell_measurement_reflns_used    6608
_cell_measurement_temperature    152(2)
_cell_measurement_theta_max      24.75
_cell_measurement_theta_min      2.32
_cell_volume                     21099.8(14)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      152(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0501
_diffrn_reflns_av_unetI/netI     0.0627
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       49
_diffrn_reflns_limit_h_min       -47
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            93773
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.167
_diffrn_reflns_theta_min         1.015
_exptl_absorpt_coefficient_mu    0.652
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.7060
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2014/5'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    0.958
_exptl_crystal_description       block
_exptl_crystal_F_000             6552
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: pentane'
_exptl_crystal_size_max          0.473
_exptl_crystal_size_mid          0.352
_exptl_crystal_size_min          0.264
_refine_diff_density_max         1.077
_refine_diff_density_min         -0.573
_refine_diff_density_rms         0.141
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.732
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     998
_refine_ls_number_reflns         23385
_refine_ls_number_restraints     505
_refine_ls_restrained_S_all      1.768
_refine_ls_R_factor_all          0.1206
_refine_ls_R_factor_gt           0.0707
_refine_ls_shift/su_max          0.072
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0700P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2086
_refine_ls_wR_factor_ref         0.2217
_reflns_Friedel_coverage         0.000
_reflns_number_gt                14666
_reflns_number_total             23385
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc04576g2.cif
_cod_data_source_block           sh3748
_cod_original_formula_sum        'C90.50 H137 Ge2 Li O2 Si4'
_cod_database_code               7123906
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.748
_shelx_estimated_absorpt_t_max   0.847
_shelx_res_checksum              81580