10-Phenyl-10-phenylethynyl-9-methylenefluorene
Jones, Peter G.; Berger, Harald; Bubenitschek, Peter; Hopf, Henning; Acta Crystallographica Section E 60 (2004) o446–o447; doi:10.1107/S1600536804003976

data_2203272
_publ_section_title
;
 10-Phenyl-10-phenylethynyl-9-methylenefluorene
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o446
_journal_page_last               o447
_journal_paper_doi               10.1107/S1600536804003976
_journal_volume                  60
_journal_year                    2004
_chemical_formula_sum            'C28 H18'
_chemical_formula_weight         354.42
_chemical_name_systematic
;
 10-Phenyl-10-phenylethynyl-9-methylene-fluorene
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 105.383(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.0901(14)
_cell_length_b                   5.8367(8)
_cell_length_c                   23.519(2)
_cell_measurement_reflns_used    62
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      10
_cell_measurement_theta_min      3.5
_cell_volume                     1864.9(4)
_computing_cell_refinement       XSCANS
_computing_data_collection       'XSCANS (Fait, 1991)'
_computing_data_reduction        XSCANS
_computing_molecular_graphics    'XP5 (Siemens, 1994)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Siemens P4'
_diffrn_measurement_method       omega-scans
_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  0.0259
_diffrn_reflns_av_sigmaI/netI    0.0692
_diffrn_reflns_limit_h_max       2
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            3940
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.06
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 247
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.071
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.262
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.7
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.119
_refine_diff_density_min         -0.184
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.819
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         3266
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.819
_refine_ls_R_factor_all          0.0758
_refine_ls_R_factor_gt           0.0370
_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^)+(0.0331P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0690
_refine_ls_wR_factor_ref         0.0762
_reflns_number_gt                1970
_reflns_number_total             3266
_reflns_threshold_expression     I>2s(I)
_cod_data_source_file            bt6414.cif
_cod_data_source_block           3
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2203272
_cod_database_fobs_code          2203272