1,1,1-Trichloro-2,2-bis(4-ethoxyphenyl)ethane
Smith, Graham; Acta Crystallographica Section E 68 (2012) o3219–; doi:10.1107/S1600536812043826

data_2236469
_publ_section_title
;
 1,1,1-Trichloro-2,2-bis(4-ethoxyphenyl)ethane
;
_journal_coeditor_code           LH5546
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3219
_journal_paper_doi               10.1107/S1600536812043826
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C18 H19 Cl3 O2'
_chemical_formula_moiety         'C18 H19 Cl3 O2'
_chemical_formula_sum            'C18 H19 Cl3 O2'
_chemical_formula_weight         373.68
_chemical_name_systematic
;
1,1,1-Trichloro-2,2-bis(4-ethoxyphenyl)ethane
;
_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                 99.536(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   23.4405(7)
_cell_length_b                   9.8835(2)
_cell_length_c                   7.7924(2)
_cell_measurement_reflns_used    3070
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      28.78
_cell_measurement_theta_min      3.09
_cell_volume                     1780.35(8)
_computing_cell_refinement       'CrysAlis PRO (Agilent, 2012)'
_computing_data_collection       'CrysAlis PRO (Agilent, 2012)'
_computing_data_reduction        'CrysAlis PRO (Agilent, 2012)'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'PLATON (Spek, 2009)'
_computing_structure_refinement
'SHELXL97 (Sheldrick, 2008) within WinGX (Farrugia, 1999)'
_computing_structure_solution    'SIR92 (Altomare <i>et al.</i>, 1993)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 16.077
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type
'Oxford Diffraction Gemini-S CCD-detector diffractometer'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1055
_diffrn_reflns_av_sigmaI/netI    0.0937
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            10942
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.35
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.521
_exptl_absorpt_correction_T_max  0.980
_exptl_absorpt_correction_T_min  0.960
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Crysalis PRO; Agilent, 2012)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.394
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.383
_refine_diff_density_min         -0.254
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.905
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     210
_refine_ls_number_reflns         3109
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.905
_refine_ls_R_factor_all          0.0648
_refine_ls_R_factor_gt           0.0457
_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^)+(0.0130P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0818
_refine_ls_wR_factor_ref         0.0916
_reflns_number_gt                2282
_reflns_number_total             3109
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh5546.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2236469
_cod_database_fobs_code          2236469