Crystal structure of dimethyl 4,4′-oxydibenzoate, C16H14O5
Maxweel, Lindley; Cárdenas, Alejandro; Brito, Iván; Zeitschrift für Kristallographie - New Crystal Structures 233 (2018) 1059–1060; doi:10.1515/ncrs-2018-0170

data_8106398
_publ_section_title
;
 Crystal structure of dimethyl 4,4&#x2032;-oxydibenzoate, C16H14O5
;
_journal_issue                   6
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              1059
_journal_page_last               1060
_journal_paper_doi               10.1515/ncrs-2018-0170
_journal_volume                  233
_journal_year                    2018
_chemical_formula_moiety         'C16 H14 O5'
_chemical_formula_sum            'C16 H14 O5'
_chemical_formula_weight         286.27
_space_group_crystal_system      orthorhombic
_space_group_IT_number           41
_space_group_name_Hall           'A 2 -2ab'
_space_group_name_H-M_alt        'A e a 2'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.4156(5)
_cell_length_b                   31.415(2)
_cell_length_c                   5.9451(4)
_cell_measurement_reflns_used    6207
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      28.278
_cell_measurement_theta_min      3.038
_cell_volume                     1384.98(16)
_computing_cell_refinement       'APEX3 (Bruker, 2007)[4]'
_computing_data_collection       'APEX3 (Bruker, 2007)[4]'
_computing_data_reduction        'APEX3 (Bruker, 2007)[4]'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)[5]'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)[5]'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)[6]'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)[6]'
_diffrn_ambient_temperature      297.05
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker AXS D8-Venture,Triumph-I\mS-Cu'
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0208
_diffrn_reflns_av_unetI/netI     0.0126
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       41
_diffrn_reflns_limit_k_min       -41
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            10890
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.278
_diffrn_reflns_theta_min         3.038
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.373
_exptl_crystal_description       block
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.191
_refine_diff_density_min         -0.119
_refine_diff_density_rms         0.028
_refine_ls_abs_structure_details
;
 Flack x determined using 657 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.4(2)
_refine_ls_extinction_coef       0.012(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2016/4 (Sheldrick 2016)'
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     110
_refine_ls_number_reflns         1707
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0364
_refine_ls_R_factor_gt           0.0316
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0520P)^2^+0.2790P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0885
_refine_ls_wR_factor_ref         0.0924
_reflns_Friedel_coverage         0.822
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                1548
_reflns_number_total             1707
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            suppl_ncrs-2018-0170_suppl.cif
_cod_data_source_block           2
_cod_original_sg_symbol_Hall     'A 2 -2ac'
_cod_original_sg_symbol_H-M      'A b a 2'
_cod_database_code               8106398
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C)
;
_shelx_res_checksum              26082
_shelx_hkl_checksum              99189
_olex2_submission_special_instructions 'No special instructions were received'
_publcif_info_exptl_table_max_cols 4
_publcif_info_exptl_table_use_headnotes n