Stereospecificity and Stereoselectivity in Electrophilic Substitution Reactions of Non-α-Heterosubstituted Organolithiums and Stannanes: A Rotationally Restricted Amide as an Internal Stereochemical Marker
Jonathan Clayden; Madeleine Helliwell; Jennifer H. Pink; Neil Westlund; Journal of the American Chemical Society 123 (2001) 12449–12457; doi:10.1021/ja0112590

data_4115850
_publ_section_title
;
 Stereospecificity and Stereoselectivity in Electrophilic Substitution
 Reactions of Non-\a-Heterosubstituted Organolithiums and Stannanes: A
 Rotationally Restricted Amide as an Internal Stereochemical Marker
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12449
_journal_page_last               12457
_journal_paper_doi               10.1021/ja0112590
_journal_volume                  123
_journal_year                    2001
_chemical_formula_sum            'C22 H33 N O Sn'
_chemical_formula_weight         446.18
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             19101-03-07
_audit_creation_method           'by teXsan v1.7'
_cell_angle_alpha                90.00
_cell_angle_beta                 97.10
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.694
_cell_length_b                   13.465
_cell_length_c                   22.077
_cell_measurement_reflns_used    29626
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.37
_cell_measurement_theta_min      1.78
_cell_volume                     2269.633
_computing_cell_refinement       'MSC/AFC Diffractometer Control'
_computing_data_collection       'MSC/AFC Diffractometer Control'
_computing_data_reduction        'DENZO (Otwinowski, Z. 1988)'
_computing_publication_material  'teXsan (MSC, 1995)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
;

SIR92 (Altomare, et. al. 1993)

;
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.808
_diffrn_measured_fraction_theta_max 0.808
_diffrn_measurement_device       'Rigaku RAXIS'
_diffrn_measurement_method       '90 x 3 degree phi scans'
_diffrn_radiation_detector       'scintillation counter'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Rigaku rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.041
_diffrn_reflns_av_sigmaI/netI    0.0370
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            29626
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.78
_diffrn_standards_decay_%        0.00
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.134
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.306
_exptl_crystal_description       plate
_exptl_crystal_F_000             920
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.705
_refine_diff_density_min         -0.767
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     234
_refine_ls_number_reflns         3926
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0531
_refine_ls_R_factor_gt           0.0365
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0608P)^2^+0.3809P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0970
_refine_ls_wR_factor_ref         0.1058
_reflns_number_gt                3030
_reflns_number_total             3926
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0112590_2.cif
_cod_data_source_block           s912
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0608P)^2^+0.3809P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0608P)^2^+0.3809P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        2269.6
_cod_original_sg_symbol_H-M      'P 21/n '
_cod_database_code               4115850