The general synthesis and trapping of 3-substituted 1-chlorocyclopropenes.
Lee, Gon-Ann; Chen, Ko Chou; Organic letters 10 (2008) 1843–1845; doi:10.1021/ol8004479

data_1504635
_publ_section_title
;
 The general synthesis and trapping of 3-substituted
 1-chlorocyclopropenes.
;
_journal_issue                   9
_journal_name_full               'Organic letters'
_journal_page_first              1843
_journal_page_last               1845
_journal_paper_doi               10.1021/ol8004479
_journal_volume                  10
_journal_year                    2008
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C23 H17 Cl O2'
_chemical_formula_sum            'C23 H17 Cl O2'
_chemical_formula_weight         360.82
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.2148(7)
_cell_length_b                   13.1032(12)
_cell_length_c                   16.4021(18)
_cell_measurement_reflns_used    22443
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      25.35
_cell_measurement_theta_min      2.037
_cell_volume                     1765.5(3)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction        'HKL Denzo and Scalepack (Otwinowski & '
_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 0.976
_diffrn_measured_fraction_theta_max 0.976
_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  0.1357
_diffrn_reflns_av_sigmaI/netI    0.1630
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            8751
_diffrn_reflns_theta_full        25.59
_diffrn_reflns_theta_max         25.59
_diffrn_reflns_theta_min         2.77
_exptl_absorpt_coefficient_mu    0.231
_exptl_absorpt_correction_T_max  1.0381
_exptl_absorpt_correction_T_min  0.9301
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 ?
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.357
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.364
_refine_diff_density_min         -0.479
_refine_diff_density_rms         0.147
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.7(2)
_refine_ls_extinction_coef       0.035(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    fixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         3187
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.1838
_refine_ls_R_factor_gt           0.0856
_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^)+(0.1014P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1806
_refine_ls_wR_factor_ref         0.2353
_reflns_number_gt                1633
_reflns_number_total             3187
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol8004479-file007.cif
_cod_data_source_block           7343
_cod_database_code               1504635