pH dependent facile synthesis of di- and trinuclear oxime based Cu(ii) complexes: antiferromagnetic coupling in the dinuclear cores and spin frustration in the triangular core.
Das, Lakshmi Kanta; Drew, Michael G. B.; Diaz, Carmen; Ghosh, Ashutosh; Dalton transactions (Cambridge, England : 2003) 43 (2014) 7589–7598; doi:10.1039/c3dt53361a

data_7030350
_publ_section_title
;
 pH dependent facile synthesis of di- and trinuclear oxime based Cu(ii)
 complexes: antiferromagnetic coupling in the dinuclear cores and spin
 frustration in the triangular core.
;
_journal_issue                   20
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7589
_journal_page_last               7598
_journal_paper_doi               10.1039/c3dt53361a
_journal_volume                  43
_journal_year                    2014
_chemical_formula_sum            'C18 H38 Cl2 Cu2 N6 O11'
_chemical_formula_weight         712.52
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 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                   10.456(5)
_cell_length_b                   13.413(5)
_cell_length_c                   21.207(5)
_cell_measurement_reflns_used    36491
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.70
_cell_measurement_theta_min      0.96
_cell_volume                     2974.2(19)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    PLATON(Spek,2004)
_computing_publication_material  'WINGX V1.80.03'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(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  0.0372
_diffrn_reflns_av_unetI/netI     0.0297
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            36491
_diffrn_reflns_theta_full        26.70
_diffrn_reflns_theta_max         26.70
_diffrn_reflns_theta_min         0.96
_exptl_absorpt_coefficient_mu    1.671
_exptl_absorpt_correction_T_max  0.8507
_exptl_absorpt_correction_T_min  0.7998
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.591
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1472
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.682
_refine_diff_density_min         -0.265
_refine_diff_density_rms         0.070
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     361
_refine_ls_number_reflns         6164
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0531
_refine_ls_R_factor_gt           0.0408
_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^)+(0.0708P)^2^+0.5771P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1046
_refine_ls_wR_factor_ref         0.1118
_reflns_number_gt                5189
_reflns_number_total             6164
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt53361a2.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      P212121
_cod_database_code               7030350