Deformative Transition of the Menschutkin Reaction and Helical Atropisomers in a Congested Polyheterocyclic System.
Chang, Yung-Yu; Ho, Tse-Lok; Chung, Wen-Sheng; The Journal of organic chemistry 79 (2014) 9970–; doi:10.1021/jo501815y

data_4030078
_publ_section_title
;
 Deformative Transition of the Menschutkin Reaction and Helical
 Atropisomers in a Congested Polyheterocyclic System.
;
_journal_issue                   21
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              9970
_journal_paper_doi               10.1021/jo501815y
_journal_volume                  79
_journal_year                    2014
_chemical_formula_moiety         'C35 H31 I N2'
_chemical_formula_sum            'C35 H31 I N2'
_chemical_formula_weight         606.52
_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
_cell_angle_alpha                81.8260(10)
_cell_angle_beta                 83.4550(10)
_cell_angle_gamma                83.8270(10)
_cell_formula_units_Z            2
_cell_length_a                   7.52510(10)
_cell_length_b                   12.2650(2)
_cell_length_c                   14.7230(3)
_cell_measurement_reflns_used    13268
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      25.028
_cell_measurement_theta_min      2.037
_cell_volume                     1330.52(4)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction        'HKL Denzo and Scalepack'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_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  0.0443
_diffrn_reflns_av_sigmaI/netI    0.0346
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            13481
_diffrn_reflns_theta_full        25.04
_diffrn_reflns_theta_max         25.04
_diffrn_reflns_theta_min         2.05
_exptl_absorpt_coefficient_mu    1.231
_exptl_absorpt_correction_T_max  0.7794
_exptl_absorpt_correction_T_min  0.7087
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 ?
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.514
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             616
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.449
_refine_diff_density_min         -1.222
_refine_diff_density_rms         0.151
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         4625
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0375
_refine_ls_R_factor_gt           0.0323
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0400P)^2^+1.6316P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0804
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_reflns_number_gt                4277
_reflns_number_total             4625
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo501815y_si_003.cif
_cod_data_source_block           12379
_cod_depositor_comments
'Adding full bibliography for 4030076--4030079.cif.'
_cod_database_code               4030078