Double-strand DNA cleavage by copper complexes of 2,2'-dipyridyl with electropositive pendants.
An, Yan; Tong, Ming-Liang; Ji, Liang-Nian; Mao, Zong-Wan; Dalton transactions (Cambridge, England : 2003)  (2006) 2066–2071; doi:10.1039/b516132k

data_7006989
_publ_section_title
;
 Double-strand DNA cleavage by copper complexes of 2,2'-dipyridyl with
 electropositive pendants.
;
_journal_issue                   17
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2066
_journal_page_last               2071
_journal_paper_doi               10.1039/b516132k
_journal_year                    2006
_chemical_formula_sum            'C72 H128 Br Cl5 Cu N8 O20'
_chemical_formula_weight         1746.52
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 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                   17.405(4)
_cell_length_b                   36.500(9)
_cell_length_c                   14.163(4)
_cell_measurement_temperature    293(2)
_cell_volume                     8998(4)
_computing_cell_refinement       'SAINT-PLUS, Ver. 6.0, 1997'
_computing_data_collection       'SMART, 1998.'
_computing_data_reduction        'SAINT-PLUS, Ver. 6.0, 1997'
_computing_molecular_graphics    'XP, Ver. 6.10, Bruker AXS Inc., 2000'
_computing_publication_material  'SHELXTL-Bruker AXS Inc., 1998'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Apex CCD'
_diffrn_measurement_method       '\w scan'
_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  0.0438
_diffrn_reflns_av_sigmaI/netI    0.0697
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       42
_diffrn_reflns_limit_k_min       -43
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            46184
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.94
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.902
_exptl_absorpt_correction_T_max  0.8402
_exptl_absorpt_correction_T_min  0.7863
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2002)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.289
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       polyhedral
_exptl_crystal_F_000             3700
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.855
_refine_diff_density_min         -1.040
_refine_diff_density_rms         0.111
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.019(18)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     922
_refine_ls_number_reflns         15557
_refine_ls_number_restraints     220
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.1462
_refine_ls_R_factor_gt           0.0915
_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^)+(0.1913P)^2^+6.3401P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2448
_refine_ls_wR_factor_ref         0.3021
_reflns_number_gt                9293
_reflns_number_total             15557
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b516132k.txt
_cod_data_source_block           complex2
_cod_original_cell_volume        8997(4)
_cod_original_sg_symbol_H-M      Pna2(1)
_cod_database_code               7006989