Synthesis and stability of cyclic α-hydrogen nitroxides.
Toledo, Hila; Amar, Michal; Bar, Sukanta; Iron, Mark A.; Fridman, Natalia; Tumanskii, Boris; Shimon, Linda J. W.; Botoshansky, Mark; Szpilman, Alex M.; Organic & biomolecular chemistry 13 (2015) 10726–10733; doi:10.1039/c5ob01443c

data_7154672
_publ_section_title
;
 Synthesis and stability of cyclic \a-hydrogen nitroxides.
;
_journal_issue                   43
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              10726
_journal_page_last               10733
_journal_paper_doi               10.1039/c5ob01443c
_journal_volume                  13
_journal_year                    2015
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C32 H34 N O'
_chemical_formula_sum            'C32 H34 N O'
_chemical_formula_weight         448.60
_chemical_name_common            'Szpilman13 (Sukanta)'
_chemical_name_systematic
;  
 ?  
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-08-21 deposited with the CCDC.
2015-08-24 downloaded from the CCDC.
;
_cell_angle_alpha                71.82(2)
_cell_angle_beta                 88.31(2)
_cell_angle_gamma                73.55(2)
_cell_formula_units_Z            2
_cell_length_a                   7.736(2)
_cell_length_b                   12.285(2)
_cell_length_c                   14.643(3)
_cell_measurement_reflns_used    7409
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      1.47
_cell_volume                     1265.4(5)
_computing_cell_refinement       'DENZO HKL2000 (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius, 2006)'
_computing_data_reduction        'DENZO HKL2000 (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Mercury 3.5'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 95
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       'phi- and omega-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  0.0595
_diffrn_reflns_av_sigmaI/netI    0.1109
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7409
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.47
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.070
_exptl_absorpt_correction_T_max  0.9776
_exptl_absorpt_correction_T_min  0.9694
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;  
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'   
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.177
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             482
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.232
_refine_diff_density_min         -0.260
_refine_diff_density_rms         0.033
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.842
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     315
_refine_ls_number_reflns         4396
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.842
_refine_ls_R_factor_all          0.1133
_refine_ls_R_factor_gt           0.0494
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0740P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1239
_refine_ls_wR_factor_ref         0.1399
_reflns_number_gt                2182
_reflns_number_total             4396
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ob01443c2.cif
_cod_data_source_block           Szpilman13
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 7154666--7154672.cif.
;
_cod_database_code               7154672