“Donor–Acceptor” Oligogermanes: Synthesis, Structure, and Electronic Properties
Zaitsev, Kirill V.; Kapranov, Andrey A.; Churakov, Andrei V.; Poleshchuk, Oleg Kh.; Oprunenko, Yuri F.; Tarasevich, Boris N.; Zaitseva, Galina S.; Karlov, Sergey S.; Organometallics 32 (2013) 6500–; doi:10.1021/om4008218

data_4081942
_publ_section_title
;
 &#x201C;Donor--Acceptor&#x201D; Oligogermanes: Synthesis, Structure, and
 Electronic Properties
;
_journal_issue                   21
_journal_name_full               Organometallics
_journal_page_first              6500
_journal_paper_doi               10.1021/om4008218
_journal_volume                  32
_journal_year                    2013
_chemical_formula_moiety         'C39 H21 F15 Ge2, 0.25(C H Cl3)'
_chemical_formula_sum            'C39.25 H21.25 Cl0.75 F15 Ge2'
_chemical_formula_weight         949.58
_space_group_IT_number           147
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-P 3'
_symmetry_space_group_name_H-M   'P -3'
_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                120.00
_cell_formula_units_Z            2
_cell_length_a                   16.5688(15)
_cell_length_b                   16.5688(15)
_cell_length_c                   8.2300(15)
_cell_measurement_reflns_used    4977
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      26.665
_cell_measurement_theta_min      2.457
_cell_volume                     1956.6(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART APEX II'
_diffrn_measurement_method       \w
_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  0.0500
_diffrn_reflns_av_sigmaI/netI    0.0354
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            14677
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.46
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.687
_exptl_absorpt_correction_T_max  0.7290
_exptl_absorpt_correction_T_min  0.5518
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2004)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.612
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             937
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.897
_refine_diff_density_min         -0.424
_refine_diff_density_rms         0.139
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.185
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     176
_refine_ls_number_reflns         2580
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.185
_refine_ls_R_factor_all          0.0638
_refine_ls_R_factor_gt           0.0484
_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^)+(0.0958P)^2^+1.9564P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1556
_refine_ls_wR_factor_ref         0.1635
_reflns_number_gt                2097
_reflns_number_total             2580
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om4008218_si_002.cif
_cod_data_source_block           5
_cod_database_code               4081942