Synthesis and Characterization of N-Trifluoromethyl N-Heterocyclic Carbene Ligands and Their Complexes
Engl, Pascal S.; Senn, Remo; Otth, Elisabeth; Togni, Antonio; Organometallics 34 (2015) 1384–; doi:10.1021/acs.organomet.5b00137

data_4087456
_publ_section_title
;
 Synthesis and Characterization of N-Trifluoromethyl N-Heterocyclic
 Carbene Ligands and Their Complexes
;
_journal_issue                   7
_journal_name_full               Organometallics
_journal_page_first              1384
_journal_paper_doi               10.1021/acs.organomet.5b00137
_journal_volume                  34
_journal_year                    2015
_chemical_formula_sum            'C13 H7 F4 N3 Se'
_chemical_formula_weight         360.18
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 95.568(6)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   23.441(7)
_cell_length_b                   4.4531(12)
_cell_length_c                   25.419(7)
_cell_measurement_reflns_used    3111
_cell_measurement_temperature    99(2)
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      2.49
_cell_volume                     2640.8(13)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      99(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.945
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0728
_diffrn_reflns_av_unetI/netI     0.1059
_diffrn_reflns_Laue_measured_fraction_full 0.987
_diffrn_reflns_Laue_measured_fraction_max 0.945
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            8797
_diffrn_reflns_point_group_measured_fraction_full 0.987
_diffrn_reflns_point_group_measured_fraction_max 0.945
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.595
_diffrn_reflns_theta_min         1.610
_exptl_absorpt_coefficient_mu    2.887
_exptl_absorpt_correction_T_max  0.9999
_exptl_absorpt_correction_T_min  0.5718
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2012/1'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.812
_exptl_crystal_description       block
_exptl_crystal_F_000             1408
_exptl_crystal_size_max          0.315
_exptl_crystal_size_mid          0.117
_exptl_crystal_size_min          0.048
_refine_diff_density_max         1.222
_refine_diff_density_min         -1.104
_refine_diff_density_rms         0.158
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.105
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         3172
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.105
_refine_ls_R_factor_all          0.1297
_refine_ls_R_factor_gt           0.0839
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0592P)^2^+35.6669P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1712
_refine_ls_wR_factor_ref         0.1853
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2138
_reflns_number_total             3172
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om5b00137_si_002.cif
_cod_data_source_block           Compound_6f
_cod_original_cell_volume        2640.9(13)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4087456
_shelx_estimated_absorpt_t_min   0.463
_shelx_estimated_absorpt_t_max   0.874
_shelxl_version_number           2013-4
_shelx_res_checksum              29584
_shelx_hkl_checksum              5915