Di-<i>tert</i>-butyl 2,2'-[(biphenyl-4,4'-diyl)dioxy]diacetate
Ali, Qamar; Yousuf, Sammer; Raza Shah, Muhammad; Ng, Seik Weng; Acta Crystallographica Section E 66 (2010) o1739–; doi:10.1107/S1600536810023391

data_2226591
_publ_section_title
;
 Di-<i>tert</i>-butyl 2,2'-[(biphenyl-4,4'-diyl)dioxy]diacetate
;
_journal_coeditor_code           LH5072
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1739
_journal_paper_doi               10.1107/S1600536810023391
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C24 H30 O6'
_chemical_formula_moiety         'C24 H30 O6'
_chemical_formula_sum            'C24 H30 O6'
_chemical_formula_weight         414.48
_chemical_name_systematic
;
Di-<i>tert</i>-butyl 2,2'-[(biphenyl-4,4'-diyl)dioxy]diacetate
;
_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                 114.6450(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.9390(7)
_cell_length_b                   12.6247(8)
_cell_length_c                   9.8458(7)
_cell_measurement_reflns_used    2683
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.4
_cell_measurement_theta_min      2.8
_cell_volume                     1122.88(13)
_computing_cell_refinement       'SAINT (Bruker, 2002)'
_computing_data_collection       'SMART (Bruker, 2002)'
_computing_data_reduction        'SAINT (Bruker, 2002)'
_computing_molecular_graphics    'X-Seed (Barbour, 2001)'
_computing_publication_material  '<i>publCIF</i> (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART APEX diffractometer'
_diffrn_measurement_method       '\w scans'
_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  0.0240
_diffrn_reflns_av_sigmaI/netI    0.0251
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            7450
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.25
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.226
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             444
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.164
_refine_diff_density_min         -0.136
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     136
_refine_ls_number_reflns         2572
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0526
_refine_ls_R_factor_gt           0.0409
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0597P)^2^+0.1713P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1098
_refine_ls_wR_factor_ref         0.1199
_reflns_number_gt                2029
_reflns_number_total             2572
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh5072.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2226591
_cod_database_fobs_code          2226591