Annulated N-Heterocyclic Carbene Ligands Derived from 2-Methylaminopiperidine: Their Complexes and Catalytic Applications
Türkmen, Hayati; Pape, Tania; Hahn, F. Ekkehardt; Çetinkaya, Bekir; Organometallics 27 (2008) 571–; doi:10.1021/om701105y

data_4070888
_publ_section_title
;
 Annulated N-Heterocyclic Carbene Ligands Derived from
 2-Methylaminopiperidine: Their Complexes and Catalytic Applications
;
_journal_issue                   4
_journal_name_full               Organometallics
_journal_page_first              571
_journal_paper_doi               10.1021/om701105y
_journal_volume                  27
_journal_year                    2008
_chemical_formula_sum            'C27 H40 Br Ir N2'
_chemical_formula_weight         664.72
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 96.694(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.867(2)
_cell_length_b                   8.7314(10)
_cell_length_c                   15.9881(19)
_cell_measurement_reflns_used    900
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      22.5
_cell_measurement_theta_min      1
_cell_volume                     2477.2(5)
_computing_cell_refinement       'SAINT (Bruker AXS, 2000)'
_computing_data_collection       'SMART (Bruker AXS, 2000)'
_computing_data_reduction        'SAINT,SADABS (Bruker AXS, 2000)'
_computing_molecular_graphics
;
ORTEP3,L.J. Farrugia, J. Appl. Cryst. (1997) 30, 565
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 80
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'Omega and Phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0535
_diffrn_reflns_av_sigmaI/netI    0.0494
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            27827
_diffrn_reflns_theta_full        30.03
_diffrn_reflns_theta_max         30.03
_diffrn_reflns_theta_min         1.15
_exptl_absorpt_coefficient_mu    7.020
_exptl_absorpt_correction_T_max  0.7665
_exptl_absorpt_correction_T_min  0.4190
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
 Corrections were done with the SADABS program, utilizing the none merged
 raw data obtained from the integration process. Integration and final cell
 refinement were done with SAINT.

 SADABS reports ratio of Tmin/Tmax = 0.660954 

;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.782
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'transparent prism'
_exptl_crystal_F_000             1312
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.943
_refine_diff_density_min         -1.856
_refine_diff_density_rms         0.169
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.153
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     285
_refine_ls_number_reflns         7215
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.153
_refine_ls_R_factor_all          0.0556
_refine_ls_R_factor_gt           0.0451
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0299P)^2^+2.3156P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0821
_refine_ls_wR_factor_ref         0.0855
_reflns_number_gt                6322
_reflns_number_total             7215
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om701105y-file003.cif
_cod_data_source_block           sad
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4070888