2,7-Substituted Hexafluoroheterofluorenes as Potential Building Blocks for Electron Transporting Materials
Katharine Geramita; Jennifer McBee; T. Don Tilley; Journal of Organic Chemistry 74 (2009) 820–829; doi:10.1021/jo802171t

data_4024260
_publ_section_title
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2,7-Substituted Hexafluoroheterofluorenes as Potential Building Blocks for
Electron Transporting Materials
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              820
_journal_page_last               829
_journal_paper_doi               10.1021/jo802171t
_journal_volume                  74
_journal_year                    2009
_chemical_formula_moiety         'C24 H10 F8 Ge'
_chemical_formula_sum            'C24 H10 F8 Ge'
_chemical_formula_weight         522.91
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-I 2ya'
_symmetry_space_group_name_H-M   'I 1 2/a 1'
_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                 101.146(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   22.677(7)
_cell_length_b                   8.009(2)
_cell_length_c                   22.944(7)
_cell_measurement_reflns_used    1015
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      18.26
_cell_measurement_theta_min      2.31
_cell_volume                     4089(2)
_computing_cell_refinement       'Saint v7.06, Bruker 2004'
_computing_data_collection       'Apex2-v1.0.27, Bruker 2004'
_computing_data_reduction        'Saint v7.06, Bruker 2004'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Bruker Platinum 200'
_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  0.0409
_diffrn_reflns_av_sigmaI/netI    0.0619
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            7399
_diffrn_reflns_theta_full        22.10
_diffrn_reflns_theta_max         22.10
_diffrn_reflns_theta_min         1.81
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.580
_exptl_absorpt_correction_T_max  .901
_exptl_absorpt_correction_T_min  .853
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'sadabs, 2004'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.699
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2064
_exptl_crystal_size_max          .1
_exptl_crystal_size_mid          .1
_exptl_crystal_size_min          .07
_refine_diff_density_max         0.303
_refine_diff_density_min         -0.249
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     293
_refine_ls_number_reflns         2516
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0571
_refine_ls_R_factor_gt           0.0356
_refine_ls_shift/su_max          0.016
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0154P)^2^+3.8716P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0756
_refine_ls_wR_factor_ref         0.0820
_reflns_number_gt                1891
_reflns_number_total             2516
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo802171t_si_001.cif
_cod_data_source_block           kath13ts
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'I 2/a'
_cod_database_code               4024260