Synthesis, structure, magnetism and nuclease activity of tetranuclear copper(ii) phosphonates containing ancillary 2,2′-bipyridine or 1,10-phenanthroline ligands
Chandrasekhar, Vadapalli; Azhakar, Ramachandran; Senapati, Tapas; Thilagar, Pakkirisamy; Ghosh, Surajit; Verma, Sandeep; Boomishankar, Ramamoorthy; Steiner, Alexander; Kögerler, Paul; Dalton Transactions  (2008) 1150–1160; doi:10.1039/b712876b

data_7003124
_publ_section_title
;
 Synthesis, structure, magnetism and nuclease activity of tetranuclear
 copper(ii) phosphonates containing ancillary 2,2&#x2032;-bipyridine or
 1,10-phenanthroline ligands
;
_journal_issue                   9
_journal_name_full               'Dalton Transactions'
_journal_page_first              1150
_journal_page_last               1160
_journal_paper_doi               10.1039/b712876b
_journal_year                    2008
_chemical_formula_sum            'C62 H74 Cu4 N8 O18 P2'
_chemical_formula_weight         1535.39
_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                 104.22(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   11.747(3)
_cell_length_b                   17.734(4)
_cell_length_c                   18.981(5)
_cell_measurement_temperature    213(2)
_cell_volume                     3833.0(17)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  STOE-IPDS
_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  0.1674
_diffrn_reflns_av_sigmaI/netI    0.1854
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            19870
_diffrn_reflns_theta_full        22.49
_diffrn_reflns_theta_max         22.49
_diffrn_reflns_theta_min         4.10
_exptl_absorpt_coefficient_mu    1.202
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.330
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelopiped
_exptl_crystal_F_000             1584
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.466
_refine_diff_density_min         -0.548
_refine_diff_density_rms         0.084
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.868
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     490
_refine_ls_number_reflns         4978
_refine_ls_number_restraints     146
_refine_ls_restrained_S_all      0.874
_refine_ls_R_factor_all          0.1686
_refine_ls_R_factor_gt           0.0782
_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^)+(0.0790P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1611
_refine_ls_wR_factor_ref         0.1910
_reflns_number_gt                2056
_reflns_number_total             4978
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b712876b.txt
_cod_data_source_block           compound2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        3832.9(15)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7003124