(C^C*) Cyclometalated binuclear N-heterocyclic biscarbene platinum(ii) complexes - highly emissive phosphorescent emitters.
Tronnier, Alexander; Strassner, Thomas; Dalton transactions (Cambridge, England : 2003) 42 (2013) 9847–9851; doi:10.1039/c3dt50841b

data_7021516
_publ_section_title
;
 (C^C*) Cyclometalated binuclear N-heterocyclic biscarbene platinum(ii)
 complexes - highly emissive phosphorescent emitters.
;
_journal_issue                   27
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9847
_journal_page_last               9851
_journal_paper_doi               10.1039/c3dt50841b
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'C26 H24 N4, 2(Br)'
_chemical_formula_sum            'C26 H24 Br2 N4'
_chemical_formula_weight         552.31
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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
_cell_angle_alpha                90
_cell_angle_beta                 112.87(3)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   12.301(3)
_cell_length_b                   8.9810(18)
_cell_length_c                   11.865(2)
_cell_measurement_reflns_used    328
_cell_measurement_temperature    198
_cell_measurement_theta_max      25.51
_cell_measurement_theta_min      2.89
_cell_volume                     1207.7(5)
_computing_cell_refinement       'Dirax/lsq (Duisenberg, 1992)'
_computing_data_collection       'Collect (Nonius BV, 1999)'
_computing_data_reduction        'EvalCCD (Duisenberg et al., 2003)'
_computing_molecular_graphics
'PLATON (Spek, 2011), ORTEP (Farrugia, L. J. 1997), MERCURY (van de Streek, J. 2006)'
_computing_publication_material  'PLATON (Spek, 2011), enCIFer (Allen, 2004)'
_computing_structure_refinement
'SHELXL97 (Sheldrick, 1997), SHELXLE (Huebschle, 2011)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      198
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       \f
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_wavelength_id  x-ray
_diffrn_reflns_av_R_equivalents  0.0586
_diffrn_reflns_av_unetI/netI     0.0390
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            19823
_diffrn_reflns_reduction_process
;
;
_diffrn_reflns_theta_full        25.51
_diffrn_reflns_theta_max         25.51
_diffrn_reflns_theta_min         2.89
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    3.377
_exptl_absorpt_correction_T_max  0.635
_exptl_absorpt_correction_T_min  0.173
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2.10.(Sheldrick,Bruker AXS Inc.,2002)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.519
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             556
_exptl_crystal_size_max          0.800
_exptl_crystal_size_mid          0.750
_exptl_crystal_size_min          0.150
_refine_diff_density_max         0.381
_refine_diff_density_min         -0.360
_refine_diff_density_rms         0.088
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_constraints    0
_refine_ls_number_parameters     145
_refine_ls_number_reflns         2193
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0685
_refine_ls_R_factor_gt           0.0359
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0256P)^2^+2.2519P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0683
_refine_ls_wR_factor_ref         0.0790
_reflns_number_gt                1566
_reflns_number_total             2193
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c3dt50841b.txt
_cod_data_source_block           compound_2b
_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        1207.8(5)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7021516