Cyclometalations on the Imidazo[1,2-a][1,8]naphthyridine Framework
Daw, Prosenjit; Ghatak, Tapas; Doucet, Henri; Bera, Jitendra K.; Organometallics 32 (2013) 4306–; doi:10.1021/om4004658

data_4081130
_publ_section_title
;
 Cyclometalations on the Imidazo[1,2-a][1,8]naphthyridine Framework
;
_journal_issue                   15
_journal_name_full               Organometallics
_journal_page_first              4306
_journal_paper_doi               10.1021/om4004658
_journal_volume                  32
_journal_year                    2013
_chemical_formula_moiety         'C36 H24 Cl2 Ir2 N3'
_chemical_formula_sum            'C36 H24 Cl2 Ir2 N3'
_chemical_formula_weight         953.88
_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                 112.676(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.789(3)
_cell_length_b                   16.212(3)
_cell_length_c                   15.598(3)
_cell_measurement_reflns_used    4085
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.23
_cell_measurement_theta_min      2.51
_cell_volume                     3217.4(11)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    ORTEP
_computing_publication_material  ciftab
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'Bruker SMART APEX'
_diffrn_measurement_method       '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  0.0790
_diffrn_reflns_av_sigmaI/netI    0.0855
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            28356
_diffrn_reflns_theta_full        28.34
_diffrn_reflns_theta_max         28.34
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    8.460
_exptl_absorpt_correction_T_max  0.2696
_exptl_absorpt_correction_T_min  0.2262
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.969
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1796
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.21
_refine_diff_density_max         4.646
_refine_diff_density_min         -1.237
_refine_diff_density_rms         0.367
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         7887
_refine_ls_number_restraints     30
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.1320
_refine_ls_R_factor_gt           0.0752
_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^)+(0.1310P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1878
_refine_ls_wR_factor_ref         0.2262
_reflns_number_gt                4759
_reflns_number_total             7887
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om4004658_si_002.cif
_cod_data_source_block           compound3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        3217.4(10)
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               4081130