Chiral coordination polymers based on thallium(i) complexes of new bis- and tris(pyrazolyl)borate ligands with externally-directed 4-pyridyl groups
Davies, Graham M.; Jeffery, John C.; Ward, Michael D.; New Journal of Chemistry 27 (2003) 1550–; doi:10.1039/b306659b

data_7050645
_publ_section_title
;
 Chiral coordination polymers based on thallium(i) complexes of new
 bis- and tris(pyrazolyl)borate ligands with externally-directed
 4-pyridyl groups
;
_journal_issue                   11
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1550
_journal_paper_doi               10.1039/b306659b
_journal_volume                  27
_journal_year                    2003
_chemical_formula_sum            'C24 H19 B N9 Tl'
_chemical_formula_weight         648.66
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P -2yc'
_symmetry_space_group_name_H-M   'P 1 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                 96.281(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.7477(9)
_cell_length_b                   16.5928(17)
_cell_length_c                   8.3841(9)
_cell_measurement_temperature    446(2)
_cell_volume                     1209.6(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       '\w rotation with narrow frames'
_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  0.0636
_diffrn_reflns_av_sigmaI/netI    0.1603
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            12713
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         1.23
_exptl_absorpt_coefficient_mu    6.708
_exptl_absorpt_correction_T_max  0.72
_exptl_absorpt_correction_T_min  0.16
_exptl_absorpt_correction_type   'Empirical, pseudo-azimuthal scan (SADABS)'
_exptl_crystal_colour            plate
_exptl_crystal_density_diffrn    1.781
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       colourless
_exptl_crystal_F_000             624
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.764
_refine_diff_density_min         -0.794
_refine_diff_density_rms         0.157
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.031(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.764
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         5428
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      0.764
_refine_ls_R_factor_all          0.0503
_refine_ls_R_factor_gt           0.0337
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+2.4190P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0622
_refine_ls_wR_factor_ref         0.0838
_reflns_number_gt                3643
_reflns_number_total             5428
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b306659b.txt
_cod_data_source_block           TlTp4py
_cod_original_sg_symbol_H-M      Pc
_cod_database_code               7050645