Structural manifestations of the cheletropic reaction.
Wooi, Goh Yit; White, Jonathan M.; Organic & biomolecular chemistry 3 (2005) 972–974; doi:10.1039/b417538g

data_7150121
_publ_section_title
;
 Structural manifestations of the cheletropic reaction.
;
_journal_issue                   6
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              972
_journal_page_last               974
_journal_paper_doi               10.1039/b417538g
_journal_volume                  3
_journal_year                    2005
_chemical_formula_sum            'C38 H26.5 N1.5 O'
_chemical_formula_weight         520.11
_chemical_name_systematic
;
?
;
_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                 104.376(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   20.7668(18)
_cell_length_b                   10.7728(8)
_cell_length_c                   25.1640(18)
_cell_measurement_reflns_used    7638
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      27.46
_cell_measurement_theta_min      2.21
_cell_volume                     5453.3(7)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      130(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0945
_diffrn_reflns_av_sigmaI/netI    0.0597
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            14041
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.67
_exptl_absorpt_coefficient_mu    0.076
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.267
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2184
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.301
_refine_diff_density_min         -0.233
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     369
_refine_ls_number_reflns         4789
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0526
_refine_ls_R_factor_gt           0.0481
_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^)+(0.0807P)^2^+0.9702P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1329
_refine_ls_wR_factor_ref         0.1369
_reflns_number_gt                4195
_reflns_number_total             4789
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b417538g-cryst.txt
_cod_data_source_block           jmwrg68
_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 
;
_cod_original_sg_symbol_H-M      'C2/c  '
_cod_original_formula_sum        'C38 H26.50 N1.50 O'
_cod_database_code               7150121