1,5-Diphenylbicyclo[2.2.1]hept-5-ene-<i>endo</i>-2,<i>endo</i>-3-dicarboxylic Anhydride and 1,5-diphenylbicyclo[2.2.1]hept-5-ene-<i>exo</i>-2,<i>exo</i>-3-dicarboxylic Anhydride
Pajunen, Aarne; Mariitta Kokko; Acta Crystallographica Section C 54 (1998) 1724–1727; doi:10.1107/S010827019800849X

data_2007852
_publ_section_title
;1,5-Diphenylbicyclo[2.2.1]hept-5-ene-<i>endo</i>-2,<i>endo</i>-3-dicarboxylic
 Anhydride and
 1,5-diphenylbicyclo[2.2.1]hept-5-ene-<i>exo</i>-2,<i>exo</i>-3-dicarboxylic
 Anhydride
;
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1724
_journal_page_last               1727
_journal_paper_doi               10.1107/S010827019800849X
_journal_volume                  54
_journal_year                    1998
_chemical_formula_moiety         'C21 H16 O3'
_chemical_formula_sum            'C21 H16 O3'
_chemical_formula_weight         316.34
_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'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 103.11(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.4550(10)
_cell_length_b                   24.917(5)
_cell_length_c                   10.016(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      10.69
_cell_measurement_theta_min      5.31
_cell_volume                     1569.0(5)
_computing_cell_refinement       'MCS/AFC Diffractometer Control Software'
_computing_data_collection
;
MCS/AFC Diffractometer Control Software (Molecular Structure Corporation,
1993a)
;
_computing_data_reduction
'TEXSAN PROCESS (Molecular Structure Corporation, 1993b)'
_computing_molecular_graphics    SHELXTL/PC
_computing_publication_material  SHELXL97
_computing_structure_refinement  SHELXL97
_computing_structure_solution    'SHELXTL/PC (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.879
_diffrn_measured_fraction_theta_max 0.879
_diffrn_measurement_device_type  'Rigaku AFC7S diffractometer'
_diffrn_measurement_method       2\q/\w
_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  0.0262
_diffrn_reflns_av_sigmaI/netI    0.0454
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            2718
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.65
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 200
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.339
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.167
_refine_diff_density_min         -0.155
_refine_ls_extinction_coef       0.0030(10)
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    'H atoms: see below'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     266
_refine_ls_number_reflns         2496
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0690
_refine_ls_R_factor_gt           0.0509
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0380P)^2^+0.5973P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1134
_reflns_number_gt                2001
_reflns_number_total             2496
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            os1031.cif
_cod_data_source_block           III
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value '
calc w = 1/[\s^2^(Fo^2^)+(0.0380P)^2^+0.5973P] where
P=(Fo^2^+2Fc^2^)/3' was changed to 'calc'. New tag
'_refine_ls_weighting_details' was created. The value of the new tag
was set to 'w = 1/[\s^2^(Fo^2^)+(0.0380P)^2^+0.5973P] where
P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2007852
_cod_database_fobs_code          2007852