Tetradentate selenium ligand as a building block for homodinuclear complexes of Pd(II) and Ru(II) having seven membered rings or bis-pincer coordination mode: high catalytic activity of Pd-complexes for Heck reaction.
Das, Dipanwita; Singh, Pradhumn; Singh, Monika; Singh, Ajai Kumar; Dalton transactions (Cambridge, England : 2003) 39 (2010) 10876–10882; doi:10.1039/c0dt00561d

data_7026643
_publ_section_title
;
 Tetradentate selenium ligand as a building block for homodinuclear
 complexes of Pd(II) and Ru(II) having seven membered rings or bis-pincer
 coordination mode: high catalytic activity of Pd-complexes for Heck
 reaction.
;
_journal_issue                   45
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10876
_journal_page_last               10882
_journal_paper_doi               10.1039/c0dt00561d
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C40 H40 Pd2 Se4, 2(Cl O4)'
_chemical_formula_sum            'C40 H40 Cl2 O8 Pd2 Se4'
_chemical_formula_weight         1248.26
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                91.562(7)
_cell_angle_beta                 104.662(5)
_cell_angle_gamma                96.774(7)
_cell_formula_units_Z            2
_cell_length_a                   11.026(5)
_cell_length_b                   14.321(6)
_cell_length_c                   15.336(7)
_cell_measurement_reflns_used    7890
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      25.05
_cell_measurement_theta_min      2.25
_cell_volume                     2322.3(18)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and 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  0.0522
_diffrn_reflns_av_sigmaI/netI    0.0786
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            21172
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.05
_exptl_absorpt_coefficient_mu    4.070
_exptl_absorpt_correction_T_max  0.771
_exptl_absorpt_correction_T_min  0.482
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.785
_exptl_crystal_density_meas      1.785
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1212.0
_exptl_crystal_size_max          0.203
_exptl_crystal_size_mid          0.150
_exptl_crystal_size_min          0.065
_refine_diff_density_max         1.196
_refine_diff_density_min         -0.675
_refine_diff_density_rms         0.119
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.294
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     494
_refine_ls_number_reflns         8180
_refine_ls_number_restraints     118
_refine_ls_restrained_S_all      1.141
_refine_ls_R_factor_all          0.1073
_refine_ls_R_factor_gt           0.0613
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0829P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1410
_refine_ls_wR_factor_ref         0.1600
_reflns_number_gt                4747
_reflns_number_total             8180
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt00561d.txt
_cod_data_source_block           complex_1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_sg_symbol_H-M      P-1
_cod_database_code               7026643