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_4087455
_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_moiety         "'C15 H8 F6 N2 Se"
_chemical_formula_sum            'C15 H8 F6 N2 Se'
_chemical_formula_weight         409.19
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                85.932(3)
_cell_angle_beta                 79.201(2)
_cell_angle_gamma                78.825(2)
_cell_formula_units_Z            6
_cell_length_a                   12.4828(16)
_cell_length_b                   12.8503(16)
_cell_length_c                   14.2670(18)
_cell_measurement_reflns_used    8738
_cell_measurement_temperature    99(2)
_cell_measurement_theta_max      29.46
_cell_measurement_theta_min      2.21
_cell_volume                     2204.0(5)
_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-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      99(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0467
_diffrn_reflns_av_unetI/netI     0.0567
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.999
_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       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            26228
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.102
_diffrn_reflns_theta_min         1.454
_exptl_absorpt_coefficient_mu    2.623
_exptl_absorpt_correction_T_max  0.6094
_exptl_absorpt_correction_T_min  0.6094
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2004/1'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.850
_exptl_crystal_description       block
_exptl_crystal_F_000             1200
_exptl_crystal_size_max          0.590
_exptl_crystal_size_mid          0.478
_exptl_crystal_size_min          0.387
_refine_diff_density_max         2.351
_refine_diff_density_min         -1.165
_refine_diff_density_rms         0.143
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     647
_refine_ls_number_reflns         9705
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0898
_refine_ls_R_factor_gt           0.0632
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0749P)^2^+12.5774P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1526
_refine_ls_wR_factor_ref         0.1703
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7317
_reflns_number_total             9705
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            om5b00137_si_002.cif
_cod_data_source_block           Compound_6e
_cod_database_code               4087455
_shelx_estimated_absorpt_t_min   0.307
_shelx_estimated_absorpt_t_max   0.430
_shelxl_version_number           2013-4
_shelx_res_checksum              80825
_shelx_hkl_checksum              72604