Complexes of 2,5-Bis(α-pyridyl)pyrrolate with Pd(II) and Pt(II): A Monoanionic Iso-π-Electron Ligand Analog of Terpyridine
Gregory H. Imler; Zhi Lu; Kurt A. Kistler; Patrick J. Carroll; Bradford B. Wayland; Michael J. Zdilla; Inorganic Chemistry 51 (2012) 10122–10128; doi:10.1021/ic300435t

data_4330449
_publ_section_title
;
 Complexes of 2,5-Bis(\a-pyridyl)pyrrolate with Pd(II) and Pt(II): A
 Monoanionic Iso-\p-Electron Ligand Analog of Terpyridine
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10122
_journal_page_last               10128
_journal_paper_doi               10.1021/ic300435t
_journal_volume                  51
_journal_year                    2012
_chemical_formula_moiety         'C14 H11 N3'
_chemical_formula_sum            'C14 H11 N3'
_chemical_formula_weight         221.26
_chemical_name_systematic        2,5-dipyridylpyrrole
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.9045(7)
_cell_length_b                   12.7669(16)
_cell_length_c                   15.3114(18)
_cell_measurement_reflns_used    4225
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.888
_cell_measurement_theta_min      3.096
_cell_volume                     1154.2(2)
_computing_cell_refinement       'SAINT (Bruker AXS)'
_computing_data_collection       'COSMO (Bruker AXS)'
_computing_data_reduction        'SADABS (Bruker AXS)'
_computing_molecular_graphics    'XP (Sheldrick, 2008)'
_computing_publication_material  'APEX2 (Bruker AXS)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Kappa APEX II DUO'
_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  0.0193
_diffrn_reflns_av_sigmaI/netI    0.0261
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            6749
_diffrn_reflns_theta_full        27.91
_diffrn_reflns_theta_max         27.91
_diffrn_reflns_theta_min         2.08
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  0.9845
_exptl_absorpt_correction_T_min  0.9745
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
6781 Corrected reflections written to file 
 Estimated minimum and maximum transmission:  0.6891  0.7456
 The ratio of these values is more reliable than their absolute values!
 Additional spherical absorption correction applied with mu*r =  0.2000
 Lambda/2 correction factor = 0.0015
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.273
_exptl_crystal_description       block
_exptl_crystal_F_000             464
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.154
_refine_diff_density_min         -0.181
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2769
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0405
_refine_ls_R_factor_gt           0.0344
_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^)+(0.0382P)^2^+0.1960P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0775
_refine_ls_wR_factor_ref         0.0807
_reflns_number_gt                2510
_reflns_number_total             2769
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic300435t_si_002_4.cif
_cod_data_source_block           PDPH
_cod_database_code               4330449