Extended germa[N]pericyclynes: synthesis and characterization.
Tanimoto, Hiroki; Fujiwara, Taro; Mori, Junta; Nagao, Tomohiko; Nishiyama, Yasuhiro; Morimoto, Tsumoru; Ito, Shunichiro; Tanaka, Kazuo; Chujo, Yoshiki; Kakiuchi, Kiyomi; Dalton transactions (Cambridge, England : 2003) 46 (2017) 2281–2288; doi:10.1039/c6dt04633a

data_7041886
_publ_section_title
;
 Extended germa[N]pericyclynes: synthesis and characterization.
;
_journal_issue                   7
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2281
_journal_page_last               2288
_journal_paper_doi               10.1039/c6dt04633a
_journal_volume                  46
_journal_year                    2017
_chemical_formula_moiety         'C66 H40 Cl4 Ge4'
_chemical_formula_sum            'C66 H40 Cl4 Ge4'
_chemical_formula_weight         1265.21
_chemical_name_common            'Ext_PhGe4 with CH2Cl2'
_chemical_name_systematic        'extended octaphenyl germa[4]pericyclyne'
_space_group_crystal_system      tetragonal
_space_group_IT_number           87
_space_group_name_Hall           '-I 4'
_space_group_name_H-M_alt        'I 4/m'
_symmetry_space_group_name_Hall  '-I 4'
_symmetry_space_group_name_H-M   'I 4/m'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_update_record
;
2016-11-12 deposited with the CCDC.
2017-01-16 downloaded from the CCDC.
;
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                90.0000
_cell_formula_units_Z            2
_cell_length_a                   13.7886(6)
_cell_length_b                   13.7886(6)
_cell_length_c                   15.0538(3)
_cell_measurement_reflns_used    19219
_cell_measurement_temperature    123
_cell_measurement_theta_max      27.49
_cell_measurement_theta_min      3.42
_cell_volume                     2862.11(19)
_computing_cell_refinement       'RAPID AUTO'
_computing_data_collection       'RAPID AUTO (Rigaku, ????)'
_computing_data_reduction        'RAPID AUTO'
_computing_molecular_graphics    'CrystalStructure 4.2'
_computing_publication_material  'CrystalStructure 4.2 (Rigaku, 2015)'
_computing_structure_refinement  'SHELXL Version 2014/7 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT Version 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      123
_diffrn_detector_area_resol_mean 10.000
_diffrn_measured_fraction_theta_full 0.997
_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  0.0411
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            24146
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.480
_diffrn_reflns_theta_min         3.419
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.306
_exptl_absorpt_correction_T_max  0.871
_exptl_absorpt_correction_T_min  0.529
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.468
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1264.00
_exptl_crystal_size_max          0.170
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.060
_refine_diff_density_max         0.84
_refine_diff_density_min         -0.50
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.114
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     103
_refine_ls_number_reflns         1699
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0478
_refine_ls_R_factor_gt           0.0416
_refine_ls_shift/su_max          0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0561P)^2^+6.1940P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1076
_refine_ls_wR_factor_ref         0.1108
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1503
_reflns_number_total             1699
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c6dt04633a2.cif
_cod_data_source_block           Extended-Ph-Ge4pericyclyne
_cod_depositor_comments
'Adding full bibliography for 7041886--7041889.cif.'
_cod_original_cell_volume        2862.13(19)
_cod_database_code               7041886
_shelx_res_checksum              60216