Synthesis and X-ray structures of cadmium-containing dinuclear double helicates derived from ligands containing N-oxide units
Bokolinis, Georgios; Riis-Johannessen, T.; Jeffery, John C.; Rice, Craig R.; New Journal of Chemistry 32 (2008) 115–; doi:10.1039/b711039a

data_7051802
_publ_section_title
;
 Synthesis and X-ray structures of cadmium-containing dinuclear double
 helicates derived from ligands containing N-oxide units
;
_journal_issue                   1
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              115
_journal_paper_doi               10.1039/b711039a
_journal_volume                  32
_journal_year                    2008
_chemical_formula_sum            'C50 H42 Cd2 Cl4 N10 O20 S4'
_chemical_formula_weight         1597.78
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 110.065(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   23.568(4)
_cell_length_b                   12.894(2)
_cell_length_c                   21.345(4)
_cell_measurement_reflns_used    12765
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      48.838
_cell_measurement_theta_min      4.449
_cell_volume                     6092.7(18)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SHELXTL (Bruker, 2001)'
_computing_molecular_graphics    'SHELXTL (Bruker, 2001)'
_computing_publication_material  'SHELXTL (Bruker, 2001)'
_computing_structure_refinement  'SHELXTL (Bruker, 2001)'
_computing_structure_solution    'SHELXTL (Bruker, 2001)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 8.2
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'frames each covering 0.3\% in\w'
_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  0.0539
_diffrn_reflns_av_sigmaI/netI    0.0549
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            64281
_diffrn_reflns_theta_full        27.52
_diffrn_reflns_theta_max         27.52
_diffrn_reflns_theta_min         1.83
_exptl_absorpt_coefficient_mu    1.093
_exptl_absorpt_correction_T_max  0.789877
_exptl_absorpt_correction_T_min  0.658630
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.742
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3200
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         1.603
_refine_diff_density_min         -1.600
_refine_diff_density_rms         0.125
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.992
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     812
_refine_ls_number_reflns         13984
_refine_ls_number_restraints     40
_refine_ls_restrained_S_all      1.014
_refine_ls_R_factor_all          0.0853
_refine_ls_R_factor_gt           0.0548
_refine_ls_shift/su_max          0.050
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1103P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1615
_refine_ls_wR_factor_ref         0.1737
_reflns_number_gt                8783
_reflns_number_total             13984
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b711039a.txt
_cod_data_source_block           CRRCIF1
_cod_original_cell_volume        6093(2)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7051802