Tri-, Tetra-, and Hexanuclear Copper(II) Phosphonates Containing N-Donor Chelating Ligands: Synthesis, Structure, Magnetic Properties, and Nuclease Activity
Vadapalli Chandrasekhar; Tapas Senapati; E. Carolina Sañudo; R. Clérac; Inorganic Chemistry 48 (2009) 6192–6204; doi:10.1021/ic900522u

data_4302546
_publ_contact_author_address
;Head, Department of Chemistry
Indian Institute of Technology Kanpur
Kanpur 208016
Uttarpradesh
India
;
_publ_contact_author_email       vc@iitk.ac.in
_publ_contact_author_fax         '+91-512-259 7436'
_publ_contact_author_name        'Prof. V. Chandrasekhar'
_publ_contact_author_phone       '+91-512-259 7259'
_publ_section_title
;
Tri-, Tetra-, and Hexanuclear Copper(II) Phosphonates Containing N-Donor
Chelating Ligands: Synthesis, Structure, Magnetic Properties, and Nuclease
Activity
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              6192
_journal_page_last               6204
_journal_paper_doi               10.1021/ic900522u
_journal_volume                  48
_journal_year                    2009
_chemical_formula_moiety         'C41 H48 Cl2 Cu3 N6 O16 P2'
_chemical_formula_sum            'C41 H48 Cl2 Cu3 N6 O16 P2'
_chemical_formula_weight         1204.31
_chemical_melting_point          290
_chemical_name_common            copperphosphonate
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.000(5)
_cell_angle_beta                 101.683(5)
_cell_angle_gamma                90.000(5)
_cell_formula_units_Z            4
_cell_length_a                   11.277(5)
_cell_length_b                   21.956(5)
_cell_length_c                   19.038(5)
_cell_measurement_reflns_used    3998
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.51
_cell_measurement_theta_min      2.15
_cell_volume                     4616(3)
_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  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0553
_diffrn_reflns_av_sigmaI/netI    0.0685
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            25937
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.06
_exptl_absorpt_coefficient_mu    1.634
_exptl_absorpt_correction_T_max  0.8873
_exptl_absorpt_correction_T_min  0.8035
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.733
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2460
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.390
_refine_diff_density_min         -0.957
_refine_diff_density_rms         0.111
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     641
_refine_ls_number_reflns         9068
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0665
_refine_ls_R_factor_gt           0.0492
_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^)+(0.0576P)^2^+0.3575P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1140
_refine_ls_wR_factor_ref         0.1215
_reflns_number_gt                7064
_reflns_number_total             9068
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic900522u_si_001_1.cif
_cod_data_source_block           Complex-2
_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_sg_symbol_H-M      'P 1 21/n 1 '
_cod_database_code               4302546