Structure Determination of Triplet Diphenylcarbenes by in Situ X-ray Crystallographic Analysis
Masaki Kawano; Katsuyuki Hirai; Hideo Tomioka; Yuji Ohashi; Journal of the American Chemical Society 129 (2007) 2383–2391; doi:10.1021/ja067306b

data_4109119
_publ_contact_author             'Masaki Kawano'
_publ_contact_author_email       mkawano@chem.titech.ac.jp
_publ_section_title
;
 Structure Determination of Triplet Diphenylcarbenes by in Situ X-ray
 Crystallographic Analysis
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2383
_journal_page_last               2391
_journal_paper_doi               10.1021/ja067306b
_journal_volume                  129
_journal_year                    2007
_chemical_formula_sum            'C13 H4 Br6 N2'
_chemical_formula_weight         667.64
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 91.409(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.9776(3)
_cell_length_b                   13.0960(4)
_cell_length_c                   12.6356(4)
_cell_measurement_reflns_used    6283
_cell_measurement_temperature    80(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      2
_cell_volume                     1650.55(9)
_computing_cell_refinement       'Siemens SMART'
_computing_data_collection       'Siemens SMART'
_computing_data_reduction        'Siemens SAINT & SADABS'
_computing_molecular_graphics    'Siemens XP'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      80(2)
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'Siemens SMART CCD area detector system'
_diffrn_measurement_method       'omega scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0609
_diffrn_reflns_av_sigmaI/netI    0.0506
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            58051
_diffrn_reflns_theta_full        40.00
_diffrn_reflns_theta_max         40.00
_diffrn_reflns_theta_min         2.24
_exptl_absorpt_coefficient_mu    14.587
_exptl_absorpt_correction_T_max  0.1416
_exptl_absorpt_correction_T_min  0.0677
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_density_diffrn    2.687
_exptl_crystal_F_000             1224
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.22
_refine_diff_density_max         1.452
_refine_diff_density_min         -1.580
_refine_diff_density_rms         0.191
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     247
_refine_ls_number_reflns         10005
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0787
_refine_ls_R_factor_gt           0.0408
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0297P)^2^+2.8124P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0768
_refine_ls_wR_factor_ref         0.0848
_reflns_number_gt                6758
_reflns_number_total             10005
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja067306bsi20061011_075725_2.cif
_cod_data_source_block           irradiated_(PhBr3)3CN2
_cod_database_code               4109119