(<i>Z</i>)-1,4-Diphenylbut-1-en-3-ynyl acetate
Chen, Zheng-Wang; Chen, Hai-Chuan; Ye, Dong-Nai; Hu, Qiao-Sheng; Acta Crystallographica Section E 68 (2012) o2847–; doi:10.1107/S1600536812037439

data_2236308
_publ_section_title
;
 (<i>Z</i>)-1,4-Diphenylbut-1-en-3-ynyl acetate
;
_journal_coeditor_code           HG5238
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2847
_journal_paper_doi               10.1107/S1600536812037439
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C18 H14 O2'
_chemical_formula_moiety         'C18 H14 O2'
_chemical_formula_sum            'C18 H14 O2'
_chemical_formula_weight         262.29
_chemical_name_systematic
;
(<i>Z</i>)-1,4-Diphenylbut-1-en-3-ynyl acetate
;
_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                 91.558(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.1480(5)
_cell_length_b                   5.5912(2)
_cell_length_c                   19.7579(7)
_cell_measurement_reflns_used    5837
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.90
_cell_measurement_theta_min      2.82
_cell_volume                     1451.93(9)
_computing_cell_refinement       'SAINT (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT (Bruker, 2004)'
_computing_molecular_graphics    'XP in SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEXII area-detector'
_diffrn_measurement_method       '\f and \w scan'
_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  0.0211
_diffrn_reflns_av_sigmaI/netI    0.0232
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            8119
_diffrn_reflns_theta_full        25.20
_diffrn_reflns_theta_max         25.20
_diffrn_reflns_theta_min         2.61
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.998
_exptl_absorpt_correction_T_min  0.987
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.200
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             552
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.087
_refine_diff_density_min         -0.139
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         2611
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0690
_refine_ls_R_factor_gt           0.0405
_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^)+(0.0583P)^2^+0.1384P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1040
_refine_ls_wR_factor_ref         0.1234
_reflns_number_gt                1678
_reflns_number_total             2611
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            hg5238.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2236308
_cod_database_fobs_code          2236308