Anhydrous TEMPO-H: reactions of a good hydrogen atom donor with low-valent carbon centres.
Giffin, Nick A.; Makramalla, Miller; Hendsbee, Arthur D.; Robertson, Katherine N.; Sherren, Cody; Pye, Cory C.; Masuda, Jason D.; Clyburne, Jason A. C.; Organic & biomolecular chemistry 9 (2011) 3672–3680; doi:10.1039/c0ob00999g

data_7151801
_publ_section_title
;
 Anhydrous TEMPO-H: reactions of a good hydrogen atom donor with
 low-valent carbon centres.
;
_journal_issue                   10
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              3672
_journal_page_last               3680
_journal_paper_doi               10.1039/c0ob00999g
_journal_volume                  9
_journal_year                    2011
_chemical_formula_moiety         'C27 H39 N2, C15 H23 O'
_chemical_formula_sum            'C42 H62 N2 O'
_chemical_formula_weight         610.94
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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            4
_cell_length_a                   10.2181(7)
_cell_length_b                   19.3153(14)
_cell_length_c                   19.5555(14)
_cell_measurement_reflns_used    9916
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.85
_cell_measurement_theta_min      2.25
_cell_volume                     3859.6(5)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.1297
_diffrn_reflns_av_sigmaI/netI    0.0716
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            42693
_diffrn_reflns_theta_full        26.50
_diffrn_reflns_theta_max         26.50
_diffrn_reflns_theta_min         2.11
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.061
_exptl_absorpt_correction_T_max  0.9877
_exptl_absorpt_correction_T_min  0.9819
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; Bruker 2009'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.051
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1344
_exptl_crystal_size_max          0.298
_exptl_crystal_size_mid          0.213
_exptl_crystal_size_min          0.201
_refine_diff_density_max         0.204
_refine_diff_density_min         -0.158
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_extinction_coef       0.0080(12)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.956
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     549
_refine_ls_number_reflns         4462
_refine_ls_number_restraints     393
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0675
_refine_ls_R_factor_gt           0.0438
_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^)+(0.0504P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0945
_refine_ls_wR_factor_ref         0.1026
_reflns_number_gt                3148
_reflns_number_total             4462
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0ob00999g.txt
_cod_data_source_block           saturatedSIPr-BHT
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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 1555 2011-01-17 13:19:09Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7151801