Dinuclear Cu(ii) complexes based on two flexible Schiff-base ligands and one unusual in situ formed diphenolate 2,6-piperidin-4-one derivative.
Dai, Yuan; Wang, Yin-Ge; Geng, Jiao; Peng, Yu-Xin; Huang, Wei; Dalton transactions (Cambridge, England : 2003) 43 (2014) 13831–13834; doi:10.1039/c4dt01014k

data_7032449
_publ_section_title
;
 Dinuclear Cu(ii) complexes based on two flexible Schiff-base ligands and
 one unusual in situ formed diphenolate 2,6-piperidin-4-one derivative.
;
_journal_issue                   37
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              13831
_journal_page_last               13834
_journal_paper_doi               10.1039/c4dt01014k
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C50 H50 Cl8 Cu2 N6 O8, 2 (H2 O)'
_chemical_formula_sum            'C50 H54 Cl8 Cu2 N6 O10'
_chemical_formula_weight         1309.67
_chemical_name_systematic
; 
 ? 
;
_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                90.00
_cell_angle_beta                 99.404(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.722(7)
_cell_length_b                   18.004(13)
_cell_length_c                   18.378(14)
_cell_measurement_reflns_used    2477
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      20.271
_cell_measurement_theta_min      2.436
_cell_volume                     2847(4)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (BRUKER 2000)'
_computing_data_reduction        'SAINT (BRUKER 2000)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (BRUKER 2000)'
_diffrn_ambient_temperature      291(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'BRUKER Smart Apex CCD area detector'
_diffrn_measurement_method       '\f and \w 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  0.1176
_diffrn_reflns_av_sigmaI/netI    0.1344
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            13440
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.26
_exptl_absorpt_coefficient_mu    1.183
_exptl_absorpt_correction_T_max  0.8909
_exptl_absorpt_correction_T_min  0.8333
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, BRUKER(2000)'
_exptl_crystal_colour            'dark green'
_exptl_crystal_density_diffrn    1.528
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1340
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.420
_refine_diff_density_min         -0.308
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.871
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     345
_refine_ls_number_reflns         4936
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.871
_refine_ls_R_factor_all          0.1325
_refine_ls_R_factor_gt           0.0628
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0713P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1491
_refine_ls_wR_factor_ref         0.1700
_reflns_number_gt                2309
_reflns_number_total             4936
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7031745
_cod_data_source_file            c4dt01014k2.cif
_cod_data_source_block           complex_3
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7032449