Ring-Closure Reactions of 1,2-Diaza-4,5-benzoheptatrienyl Metal Compounds: Experiment and Theory
Tillmann Kleine; Klaus Bergander; Roland Fröhlich; Birgit Wibbeling; Ernst-Ulrich Würthwein; Journal of Organic Chemistry 76 (2011) 1979–1991; doi:10.1021/jo2001534

data_4026173
_publ_section_title
;
 Ring-Closure Reactions of 1,2-Diaza-4,5-benzoheptatrienyl Metal
 Compounds: Experiment and Theory
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1979
_journal_page_last               1991
_journal_paper_doi               10.1021/jo2001534
_journal_volume                  76
_journal_year                    2011
_chemical_formula_sum            'C22 H17 Br'
_chemical_formula_weight         361.27
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 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                 91.028(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.9102(5)
_cell_length_b                   19.4178(9)
_cell_length_c                   14.6074(7)
_cell_measurement_reflns_used    5804
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      68.25
_cell_measurement_theta_min      0.88
_cell_volume                     3377.7(3)
_computing_cell_refinement       'Collect (Nonius B.V., 1998)'
_computing_data_collection       'Collect (Nonius B.V., 1998)'
_computing_data_reduction        'Denzo-SMN (otwinowski & Minor, 1997)'
_computing_molecular_graphics    'XP (BrukerAXS, 2000)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.969
_diffrn_measured_fraction_theta_max 0.969
_diffrn_measurement_device_type  'Nonius KappaCCD APEXII'
_diffrn_measurement_method       '\w and \f 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  0.043
_diffrn_reflns_av_sigmaI/netI    0.0236
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            29138
_diffrn_reflns_theta_full        67.53
_diffrn_reflns_theta_max         67.53
_diffrn_reflns_theta_min         3.79
_exptl_absorpt_coefficient_mu    3.266
_exptl_absorpt_correction_T_max  0.7360
_exptl_absorpt_correction_T_min  0.4957
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo (Otwinowski, Borek, Majewski & Minor, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.421
_exptl_crystal_description       block
_exptl_crystal_F_000             1472
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.457
_refine_diff_density_min         -0.536
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     433
_refine_ls_number_reflns         6104
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0534
_refine_ls_R_factor_gt           0.0462
_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^)+(0.0591P)^2^+3.9111P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1215
_refine_ls_wR_factor_ref         0.1270
_reflns_number_gt                5295
_reflns_number_total             6104
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo2001534_si_002.cif
_cod_data_source_block           wue4654
_cod_database_code               4026173