Structure Analysis of a Transient Triplet Carbene Trapped in a Crystal
Masaki Kawano; Katsuyuki Hirai; Hideo Tomioka; Yuji Ohashi; Journal of the American Chemical Society 123 (2001) 6904–6908; doi:10.1021/ja0106366

data_4115616
_publ_section_title
;
 Structure Analysis of a Transient Triplet Carbene Trapped in a Crystal
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6904
_journal_page_last               6908
_journal_paper_doi               10.1021/ja0106366
_journal_volume                  123
_journal_year                    2001
_chemical_formula_moiety         (C6H2Cl3)2C=N2
_chemical_formula_sum            'C13 H4 Cl6 N2'
_chemical_formula_weight         400.88
_chemical_name_common            hexachlorodiphenyldiazomethane
_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                 90.975(14)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.6777(16)
_cell_length_b                   12.760(4)
_cell_length_c                   12.248(2)
_cell_measurement_reflns_used    84
_cell_measurement_temperature    80(2)
_cell_measurement_theta_max      15.0
_cell_measurement_theta_min      2.0
_cell_volume                     1512.3(6)
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0396
_diffrn_reflns_av_sigmaI/netI    0.0180
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            50227
_diffrn_reflns_theta_full        32.50
_diffrn_reflns_theta_max         32.50
_diffrn_reflns_theta_min         2.31
_diffrn_standards_decay_%        none
_exptl_absorpt_coefficient_mu    1.127
_exptl_absorpt_correction_T_max  0.9355
_exptl_absorpt_correction_T_min  0.6939
_exptl_absorpt_correction_type   semi-empirical
_exptl_absorpt_process_details   'PROGRAM SADABS was used.'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.761
_exptl_crystal_description       plate
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.497
_refine_diff_density_min         -0.569
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    ride
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         5471
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0267
_refine_ls_R_factor_gt           0.0218
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0331P)^2^+0.1701P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0555
_refine_ls_wR_factor_ref         0.0567
_reflns_number_gt                4735
_reflns_number_total             5471
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0106366_1.cif
_cod_data_source_block           diazoprecursor
_cod_database_code               4115616