Trigermaallene and 1,3-Digermasilaallene
Takeaki Iwamoto; Hidenori Masuda; Chizuko Kabuto; Mitsuo Kira; Organometallics 24 (2005) 197–199; doi:10.1021/om049183e

data_4060048
_publ_section_title
;
 Trigermaallene and 1,3-Digermasilaallene
;
_journal_name_full               Organometallics
_journal_page_first              197
_journal_page_last               199
_journal_paper_doi               10.1021/om049183e
_journal_volume                  24
_journal_year                    2005
_chemical_formula_moiety         'C32 H80 Ge2 Si9 '
_chemical_formula_sum            'C32 H80 Ge2 Si9'
_chemical_formula_weight         862.93
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_cell_angle_alpha                90.000(1)
_cell_angle_beta                 107.412(1)
_cell_angle_gamma                90.000(1)
_cell_formula_units_Z            4
_cell_length_a                   24.732(7)
_cell_length_b                   11.512(3)
_cell_length_c                   18.119(6)
_cell_measurement_reflns_used    6297
_cell_measurement_temperature    223.0
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.1
_cell_volume                     4922(3)
_computing_cell_refinement       CRYSTALCLEAR
_computing_data_collection       CRYSTALCLEAR
_computing_data_reduction        'teXsan Ver. 1.11'
_computing_publication_material  'teXsan Ver. 1.11'
_computing_structure_refinement  SHELXL97
_computing_structure_solution    SIR92
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device_type  'Rigaku/MSC Mercury CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.000
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            19744
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.54
_exptl_absorpt_coefficient_mu    1.459
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8738
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Jacobson, 1998)'
_exptl_crystal_colour            'dark greenish blue'
_exptl_crystal_density_diffrn    1.164
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1848
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.51
_refine_diff_density_min         -0.36
_refine_ls_extinction_coef       0.0000
_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   1.026
_refine_ls_hydrogen_treatment    noref
_refine_ls_number_parameters     195
_refine_ls_number_reflns         3936
_refine_ls_R_factor_gt           0.0465
_refine_ls_shift/su_max          0.0010
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^) + (0.0440P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1125
_reflns_number_gt                3936
_reflns_number_total             5492
_reflns_threshold_expression     >2.0sigma(I)
_cod_original_formula_sum        'C32 H80 Ge2 Si9 '
_cod_database_code               4060048