Iptycene-Derived Pyridazines and Phthalazines
Jean Bouffard; Robert F. Eaton; Peter Müller; Timothy M. Swager; Journal of Organic Chemistry 72 (2007) 10166–10180; doi:10.1021/jo702000d

data_4023147
_publ_section_title
;
 Iptycene-Derived Pyridazines and Phthalazines
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              10166
_journal_page_last               10180
_journal_paper_doi               10.1021/jo702000d
_journal_volume                  72
_journal_year                    2007
_chemical_formula_sum            'C51.41 H41.17 N4 O2'
_chemical_formula_weight         747.02
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           82
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'I -4'
_symmetry_space_group_name_H-M   'I -4'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.1978(5)
_cell_length_b                   19.1978(5)
_cell_length_c                   22.0008(12)
_cell_measurement_reflns_used    9969
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.77
_cell_measurement_theta_min      2.38
_cell_volume                     8108.5(5)
_computing_cell_refinement       'SAINT 7 (Bruker-AXS, 2005)'
_computing_data_collection       'SMART 5 (Bruker-AXS, 2003)'
_computing_data_reduction        'SAINT 7 (Bruker-AXS, 2005)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Smart APEX CCD'
_diffrn_measurement_method       'omega and phi 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  0.0659
_diffrn_reflns_av_sigmaI/netI    0.0269
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            95861
_diffrn_reflns_theta_full        29.57
_diffrn_reflns_theta_max         29.57
_diffrn_reflns_theta_min         1.85
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  0.9925
_exptl_absorpt_correction_T_min  0.9815
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2005)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.224
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             3149
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.309
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.046
_refine_ls_abs_structure_details 'Friedel Pairs Merged (no anomalous  signal)'
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     638
_refine_ls_number_reflns         5843
_refine_ls_number_restraints     416
_refine_ls_restrained_S_all      1.006
_refine_ls_R_factor_all          0.0564
_refine_ls_R_factor_gt           0.0467
_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^)+(0.0777P)^2^+3.1900P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1178
_refine_ls_wR_factor_ref         0.1251
_reflns_number_gt                5117
_reflns_number_total             5843
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo702000d-File007.cif
_cod_data_source_block           07074
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_database_code               4023147