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_4109120
_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            'C15 H10 Br4 N2'
_chemical_formula_weight         537.89
_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                78.629(1)
_cell_angle_beta                 82.928(1)
_cell_angle_gamma                71.105(1)
_cell_formula_units_Z            2
_cell_length_a                   8.3253(3)
_cell_length_b                   8.5901(3)
_cell_length_c                   12.3494(4)
_cell_measurement_reflns_used    8192
_cell_measurement_temperature    80(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      2
_cell_volume                     817.50(5)
_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 0.941
_diffrn_measured_fraction_theta_max 0.941
_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  0.0498
_diffrn_reflns_av_sigmaI/netI    0.0516
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            36715
_diffrn_reflns_theta_full        42.62
_diffrn_reflns_theta_max         42.62
_diffrn_reflns_theta_min         1.69
_exptl_absorpt_coefficient_mu    9.839
_exptl_absorpt_correction_T_max  0.3848
_exptl_absorpt_correction_T_min  0.1563
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    2.185
_exptl_crystal_description       plate
_exptl_crystal_F_000             508
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.12
_refine_diff_density_max         1.462
_refine_diff_density_min         -1.836
_refine_diff_density_rms         0.168
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.973
_refine_ls_hydrogen_treatment    ride
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         11151
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.973
_refine_ls_R_factor_all          0.0542
_refine_ls_R_factor_gt           0.0329
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0367P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0743
_refine_ls_wR_factor_ref         0.0783
_reflns_number_gt                7951
_reflns_number_total             11151
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja067306bsi20061011_075725_3.cif
_cod_data_source_block           (PhBr2Me)2CN2_(3)
_cod_database_code               4109120