<i>c</i>-2,<i>t</i>-4-Bis(2-benzoxazol-2-yl)-<i>r</i>-1,<i>t</i>-3-bis[4-(dimethylamino)phenyl]cyclobutane
Li, Feng-Yu; Wang, Shu-Tao; Zhuang, Jun-Peng; Jiang, Lei; Song, Yan-Lin; Acta Crystallographica Section E 63 (2007) o1171–o1172; doi:10.1107/S1600536807004813

data_2212736
_publ_section_title
<i>c</i>-2,<i>t</i>-4-Bis(2-benzoxazol-2-yl)-<i>r</i>-1,<i>t</i>-3-bis[4-(dimethylamino)phenyl]cyclobutane
_journal_coeditor_code           XU2195
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1171
_journal_page_last               o1172
_journal_paper_doi               10.1107/S1600536807004813
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C34 H32 N4 O2'
_chemical_formula_moiety         'C34 H32 N4 O2'
_chemical_formula_sum            'C34 H32 N4 O2'
_chemical_formula_weight         528.64
_chemical_melting_point          548.0(10)
_chemical_name_systematic
r-1,c-2,t-3,t-4-1,3-bis(N,N-dimethyl-4-benzenamino)-2,4-bis-(2-benzooxzolyl)cyclobutane
_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           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 108.46(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   24.441(5)
_cell_length_b                   6.0694(12)
_cell_length_c                   20.101(4)
_cell_measurement_reflns_used    12682
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      2.3
_cell_volume                     2828.4(11)
_computing_cell_refinement       RAPID-AUTO
_computing_data_collection       'RAPID-AUTO (Rigaku, 1998)'
_computing_data_reduction        'CrystalStructure (Rigaku/MSC, 2002)'
_computing_molecular_graphics    'SHELXTL (Bruker, 2002)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.00
_diffrn_measured_fraction_theta_max 1.00
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID image-plate'
_diffrn_measurement_method       \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  0.037
_diffrn_reflns_av_sigmaI/netI    0.040
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            12682
_diffrn_reflns_theta_full        25.0
_diffrn_reflns_theta_max         25.0
_diffrn_reflns_theta_min         1.7
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.241
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             1120
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.32
_refine_diff_density_min         -0.41
_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     183
_refine_ls_number_reflns         2476
_refine_ls_number_restraints     18
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.1010
_refine_ls_R_factor_gt           0.0641
_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^)+(0.1378P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1919
_refine_ls_wR_factor_ref         0.2179
_reflns_number_gt                1549
_reflns_number_total             2476
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            xu2195.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        2828.4(10)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2212736
_cod_database_fobs_code          2212736