Unusual transmetallation-induced formation of a C2-symmetric tetrapallada-macrocycle.
Annibale, Vincent T.; Lund, Liisa M.; Song, Datong; Chemical communications (Cambridge, England) 46 (2010) 8261–8263; doi:10.1039/c0cc03314f

data_7112962
_publ_section_title
;
 Unusual transmetallation-induced formation of a C2-symmetric
 tetrapallada-macrocycle.
;
_journal_issue                   43
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              8261
_journal_page_last               8263
_journal_paper_doi               10.1039/c0cc03314f
_journal_volume                  46
_journal_year                    2010
_chemical_formula_sum            'C22 H22 Cl N3 Pd'
_chemical_formula_weight         470.28
_chemical_name_systematic
;
?
;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P -2bc -2c'
_symmetry_space_group_name_H-M   'P c 21 b'
_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                   6.4520(5)
_cell_length_b                   10.7360(10)
_cell_length_c                   29.278(4)
_cell_measurement_reflns_used    6717
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      3.16
_cell_volume                     2028.0(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_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  0.0519
_diffrn_reflns_av_sigmaI/netI    0.0625
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            6717
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.16
_exptl_absorpt_coefficient_mu    1.058
_exptl_absorpt_correction_T_max  0.909
_exptl_absorpt_correction_T_min  0.858
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements
Sortav (Blessing 1995)
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.540
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             952
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.09
_refine_diff_density_max         1.170
_refine_diff_density_min         -0.593
_refine_diff_density_rms         0.090
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.08(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         2883
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0519
_refine_ls_R_factor_gt           0.0370
_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^)+(0.0150P)^2^+2.6489P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0704
_refine_ls_wR_factor_ref         0.0769
_reflns_number_gt                2441
_reflns_number_total             2883
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0cc03314f.txt
_cod_data_source_block           complex2
_cod_original_sg_symbol_H-M      Pc2(1)b
_cod_database_code               7112962