Synthesis of a BDPA-TEMPO biradical.
Dane, Eric L.; Maly, Thorsten; Debelouchina, Galia T.; Griffin, Robert G.; Swager, Timothy M.; Organic letters 11 (2009) 1871–1874; doi:10.1021/ol9001575

data_1503816
_publ_section_title
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 Synthesis of a BDPA-TEMPO biradical.
;
_journal_issue                   9
_journal_name_full               'Organic letters'
_journal_page_first              1871
_journal_page_last               1874
_journal_paper_doi               10.1021/ol9001575
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C46.75 H46.5 N2 O3.25'
_chemical_formula_weight         688.36
_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                 95.1410(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   33.5318(7)
_cell_length_b                   19.5054(4)
_cell_length_c                   11.6487(3)
_cell_measurement_reflns_used    9962
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      68.46
_cell_measurement_theta_min      2.62
_cell_volume                     7588.2(3)
_computing_cell_refinement       'SAINT 7.4 (Bruker-AXS, 2008)'
_computing_data_collection       'APEX2 2.2 (Bruker-AXS, 2008)'
_computing_data_reduction        'SAINT 7.4 (Bruker-AXS, 2008)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_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           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0251
_diffrn_reflns_av_sigmaI/netI    0.0112
_diffrn_reflns_limit_h_max       40
_diffrn_reflns_limit_h_min       -40
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            71926
_diffrn_reflns_theta_full        67.56
_diffrn_reflns_theta_max         67.56
_diffrn_reflns_theta_min         2.62
_exptl_absorpt_coefficient_mu    0.587
_exptl_absorpt_correction_T_max  0.9436
_exptl_absorpt_correction_T_min  0.7991
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.205
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             2936
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.221
_refine_diff_density_min         -0.199
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     576
_refine_ls_number_reflns         6660
_refine_ls_number_restraints     187
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0403
_refine_ls_R_factor_gt           0.0365
_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^)+(0.0392P)^2^+6.2150P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0879
_refine_ls_wR_factor_ref         0.0908
_reflns_number_gt                6065
_reflns_number_total             6660
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol9001575_si_001.cif
_cod_data_source_block           d08061
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_original_formula_sum        'C46.75 H46.50 N2 O3.25'
_cod_database_code               1503816