Dimethyl 7-methoxytetracyclo[6.4.0.0^2,4^.0^3,7^]dodeca-1(12),5,8,10-tetraene-3,4-dicarboxylate
Moazeni, Amin; Bender, Christopher O.; Boeré, René T.; Acta Crystallographica Section E 68 (2012) o2837–; doi:10.1107/S1600536812037233

data_2236316
_publ_section_title
;
 Dimethyl
 7-methoxytetracyclo[6.4.0.0^2,4^.0^3,7^]dodeca-1(12),5,8,10-tetraene-3,4-dicarboxylate
;
_journal_coeditor_code           HG5246
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2837
_journal_paper_doi               10.1107/S1600536812037233
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C17 H16 O5'
_chemical_formula_moiety         'C17 H16 O5'
_chemical_formula_sum            'C17 H16 O5'
_chemical_formula_weight         300.30
_chemical_name_systematic
'Dimethyl 7-methoxytetracyclo[6.4.0.0^2,4^.0^3,7^]dodeca-1(12),5,8,10-tetraene-3,4-dicarboxylate'
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 90.0280(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   23.892(2)
_cell_length_b                   7.9999(8)
_cell_length_c                   15.4182(15)
_cell_measurement_reflns_used    9907
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.75
_cell_measurement_theta_min      2.64
_cell_volume                     2946.9(5)
_computing_cell_refinement       'SAINT-Plus (Bruker, 2008)'
_computing_data_collection       'APEX2 (Bruker, 2008)'
_computing_data_reduction        'SAINT-Plus (Bruker, 2008)'
_computing_molecular_graphics    'Mercury (Macrae <i>et al.</i>, 2008)'
_computing_publication_material  'publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 66.06
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEXII CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0288
_diffrn_reflns_av_sigmaI/netI    0.0167
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            19005
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.70
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  0.7458
_exptl_absorpt_correction_T_min  0.6716
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.354
_exptl_crystal_description       Block
_exptl_crystal_F_000             1264
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.305
_refine_diff_density_min         -0.212
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     202
_refine_ls_number_reflns         3005
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0390
_refine_ls_R_factor_gt           0.0339
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0508P)^2^+1.4670P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0908
_refine_ls_wR_factor_ref         0.0941
_reflns_number_gt                2607
_reflns_number_total             3005
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            hg5246.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2236316
_cod_database_fobs_code          2236316