Synthesis and characterization of germa[n]pericyclynes.
Tanimoto, Hiroki; Nagao, Tomohiko; Nishiyama, Yasuhiro; Morimoto, Tsumoru; Iseda, Fumiyasu; Nagato, Yuko; Suzuka, Toshimasa; Tsutsumi, Ken; Kakiuchi, Kiyomi; Dalton transactions (Cambridge, England : 2003) 43 (2014) 8338–8343; doi:10.1039/c4dt00574k

data_7029707
_publ_section_title
;
 Synthesis and characterization of germa[n]pericyclynes.
;
_journal_issue                   22
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              8338
_journal_page_last               8343
_journal_paper_doi               10.1039/c4dt00574k
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C56 H40 Ge4'
_chemical_formula_sum            'C56 H40 Ge4'
_chemical_formula_weight         1003.29
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 97.0009(7)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            2
_cell_length_a                   11.7516(3)
_cell_length_b                   9.32888(17)
_cell_length_c                   24.4431(5)
_cell_measurement_reflns_used    38130
_cell_measurement_temperature    123
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      3.15
_cell_volume                     2659.70(10)
_computing_cell_refinement       'RAPID AUTO'
_computing_data_collection       'RAPID AUTO (Rigaku, ????)'
_computing_data_reduction        'RAPID AUTO'
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'Il Milione (Burla, et al., 2007)'
_diffrn_ambient_temperature      123
_diffrn_detector_area_resol_mean 10.000
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0345
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            44425
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.48
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.269
_exptl_absorpt_correction_T_max  0.893
_exptl_absorpt_correction_T_min  0.705
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.253
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1008.00
_exptl_crystal_size_max          0.140
_exptl_crystal_size_mid          0.120
_exptl_crystal_size_min          0.050
_platon_squeeze_details
;
;
_refine_diff_density_max         1.030
_refine_diff_density_min         -0.600
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.170
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     271
_refine_ls_number_reflns         6093
_refine_ls_number_restraints     0
_refine_ls_R_factor_gt           0.0379
_refine_ls_shift/su_max          0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0651P)^2^+1.5347P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1088
_reflns_number_gt                5602
_reflns_number_total             6093
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c4dt00574k2.cif
_cod_data_source_block           Octaphenylgerma(4)pericycl
_cod_depositor_comments
'Adding full bibliography for 7029707--7029711.cif.'
_cod_original_cell_volume        2659.70(9)
_cod_database_code               7029707