π-Back-Bonding Interaction Depending on the Bridging Chain Lengths of Chelated N-Heterocyclic Carbene Platinum Units in Heterometallic Trinuclear Complexes Affecting Their Electrochemical Property.
Maeda, Yuri; Hashimoto, Hideki; Kinoshita, Isamu; Nishioka, Takanori; Inorganic chemistry 53 (2014) 661–663; doi:10.1021/ic402063f

data_4337097
_publ_section_title
;
 \p-Back-Bonding Interaction Depending on the Bridging Chain Lengths of
 Chelated N-Heterocyclic Carbene Platinum Units in Heterometallic
 Trinuclear Complexes Affecting Their Electrochemical Property.
;
_journal_issue                   2
_journal_name_full               'Inorganic chemistry'
_journal_page_first              661
_journal_page_last               663
_journal_paper_doi               10.1021/ic402063f
_journal_volume                  53
_journal_year                    2014
_chemical_formula_moiety         'C78 H84 B2 Ir2 N4 Pt S2'
_chemical_formula_sum            'C78 H84 B2 Ir2 N4 Pt S2'
_chemical_formula_weight         1742.82
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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
_cell_angle_alpha                90.0000
_cell_angle_beta                 92.822(5)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   12.2500(9)
_cell_length_b                   19.8908(15)
_cell_length_c                   28.782(3)
_cell_measurement_reflns_used    15635
_cell_measurement_temperature    193
_cell_measurement_theta_max      27.49
_cell_measurement_theta_min      4.05
_cell_volume                     7004.6(10)
_computing_cell_refinement       CrystalClear
_computing_data_collection       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_reduction        CrystalClear
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    SIR97
_diffrn_ambient_temperature      193
_diffrn_detector_area_resol_mean 7.314
_diffrn_measured_fraction_theta_full 0.958
_diffrn_measured_fraction_theta_max 0.958
_diffrn_measurement_device_type  'Rigaku Mercury70'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0663
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            46811
_diffrn_reflns_theta_full        26.48
_diffrn_reflns_theta_max         26.47
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.891
_exptl_absorpt_correction_T_max  0.308
_exptl_absorpt_correction_T_min  0.177
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.653
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3416.00
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.200
_refine_diff_density_max         4.620
_refine_diff_density_min         -2.270
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.104
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     814
_refine_ls_number_reflns         13864
_refine_ls_number_restraints     0
_refine_ls_R_factor_gt           0.0640
_refine_ls_shift/su_max          0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.1027P)^2^+36.6804P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1887
_reflns_number_gt                11043
_reflns_number_total             13864
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            ic402063f_si_002.cif
_cod_data_source_block           3-C2-Ir2PtS2C2MeBPh4
_cod_original_cell_volume        7004.5(10)
_cod_database_code               4337097