Spiro[3-germabicyclo[3.1.0]hexane-3,9'-[9]germafluorene]
Ogawa, Keiichiro; Takeuchi, Yoshito; Manuel, Georges; Boukherroub, Rabah; Acta Crystallographica Section C 50 (1994) 1337–1339; doi:10.1107/S010827019400291X

data_2009930
_publ_contact_author
;
     Prof Keiichiro Ogawa
     Department of Chemistry
     The College of Arts and Sciences
     The University of Tokyo
     Komaba, Meguro-ku
     Tokyo
;
_publ_section_title
;
 Spiro[3-germabicyclo[3.1.0]hexane-3,9'-[9]germafluorene]
;
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1337
_journal_page_last               1339
_journal_paper_doi               10.1107/S010827019400291X
_journal_volume                  50
_journal_year                    1994
_chemical_formula_sum            'C17 H16 Ge'
_chemical_formula_weight         292.90
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_audit_creation_method           'from TEXRAY.INF file'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   26.191(2)
_cell_length_b                   15.218(2)
_cell_length_c                   6.950(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    296.0
_cell_measurement_theta_max      39.80
_cell_measurement_theta_min      38.26
_cell_volume                     2770.1(9)
_computing_cell_refinement       'MSC/AFC Diffractometer Control'
_computing_data_collection       'MSC/AFC Diffractometer Control'
_computing_data_reduction        'teXsan: PROCESS (MSC,1992)'
_computing_publication_material  'teXsan: FINISH (MSC)'
_computing_structure_refinement  'teXsan: LS (MSC)'
_computing_structure_solution    'teXsan: DIRDIF92'
_diffrn_ambient_temperature      296.0
_diffrn_measurement_device       AFC-6A
_diffrn_measurement_method       '\w/2-\q scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.5418
_diffrn_reflns_av_R_equivalents  0.001
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -3
_diffrn_reflns_number            2403
_diffrn_reflns_reduction_process 'perpendicular monochr Lp'
_diffrn_reflns_theta_max         59.9617
_diffrn_reflns_theta_min         3.0
_diffrn_standards_decay_%        -0.23
_diffrn_standards_interval_count 100
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    2.808
_exptl_absorpt_correction_T_max  0.973
_exptl_absorpt_correction_T_min  0.923
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   \y-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.404
_exptl_crystal_description       prism
_exptl_crystal_F_000             1200.00
_exptl_crystal_size_max          0.250
_exptl_crystal_size_mid          0.250
_exptl_crystal_size_min          0.250
_refine_diff_density_max         0.29490
_refine_diff_density_min         -0.19930
_refine_ls_extinction_method     'not applied'
_refine_ls_goodness_of_fit_obs   2.290
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_constraints    0
_refine_ls_number_parameters     227
_refine_ls_number_reflns         1628
_refine_ls_number_restraints     0
_refine_ls_R_factor_obs          0.0250
_refine_ls_shift/esd_max         0.0100
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_obs         0.0260
_reflns_number_observed          1628
_reflns_number_total             2047
_reflns_observed_criterion       Inet>3.000\s(Inet)
_cod_data_source_file            as1113.cif
_cod_data_source_block           manuc
_cod_original_cell_volume        2770.0(10)
_cod_original_formula_sum        'C17 H16 Ge1'
_cod_database_code               2009930