The Crossed [2+2] Cycloaddition of 1-Phenylcyclopropene and 1-Bromo-2-phenylcyclopropene
Gon-Ann Lee; Wen-Chieh Wang; Shih-Fen Jiang; Chih-Yi Chang; Ru-Ting Tsai; Journal of Organic Chemistry 74 (2009) 7994–7997; doi:10.1021/jo901636k

data_4024916
_publ_section_title
;
The Crossed [2+2] Cycloaddition of 1-Phenylcyclopropene and
1-Bromo-2-phenylcyclopropene
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              7994
_journal_page_last               7997
_journal_paper_doi               10.1021/jo901636k
_journal_volume                  74
_journal_year                    2009
_chemical_formula_moiety         'C18 H14 Br2'
_chemical_formula_sum            'C18 H14 Br2'
_chemical_formula_weight         390.11
_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                 90.4970(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   10.3703(2)
_cell_length_b                   17.3085(3)
_cell_length_c                   16.8815(3)
_cell_measurement_reflns_used    19890
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      25.35
_cell_measurement_theta_min      2.037
_cell_volume                     3030.02(10)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction        'HKL Denzo and Scalepack'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_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  0.0840
_diffrn_reflns_av_sigmaI/netI    0.0505
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            32726
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         2.29
_exptl_absorpt_coefficient_mu    5.337
_exptl_absorpt_correction_T_max  0.3897
_exptl_absorpt_correction_T_min  0.2324
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 ?
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.710
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1536
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.709
_refine_diff_density_min         -0.920
_refine_diff_density_rms         0.114
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    fixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     361
_refine_ls_number_reflns         5554
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0703
_refine_ls_R_factor_gt           0.0466
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0621P)^2^+3.4477P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1083
_refine_ls_wR_factor_ref         0.1192
_reflns_number_gt                4186
_reflns_number_total             5554
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo901636k_si_002.cif
_cod_data_source_block           '[5]'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4024916