Monomeric and dimeric copper (II) complexes based on bidentate Nʹ-(propan-2-ylidene) thiophene carbohydrazide Schiff base ligand: Synthesis, structure, magnetic properties, antioxidant and anti-Alzheimer activities
Boulguemh, Imed-Eddine; Beghidja, Adel; Khattabi, Latifa; Long, Jérôme; Beghidja, Chahrazed; Inorganica Chimica Acta 507 (2020) 119519–; doi:10.1016/j.ica.2020.119519

data_1564651
_publ_section_title
;
 Monomeric and dimeric copper (II) complexes based on bidentate
 N&#x02B9;-(propan-2-ylidene) thiophene carbohydrazide Schiff base ligand:
 Synthesis, structure, magnetic properties, antioxidant and anti-Alzheimer
 activities
;
_journal_name_full               'Inorganica Chimica Acta'
_journal_page_first              119519
_journal_paper_doi               10.1016/j.ica.2020.119519
_journal_volume                  507
_journal_year                    2020
_chemical_formula_moiety         'C16 H20 Cl4 Cu2 N4 O2 S2'
_chemical_formula_sum            'C16 H20 Cl4 Cu2 N4 O2 S2'
_chemical_formula_weight         633.36
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_cell_angle_alpha                90
_cell_angle_beta                 109.1420(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.9490(3)
_cell_length_b                   17.8037(5)
_cell_length_c                   13.1661(4)
_cell_measurement_reflns_used    4319
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      29.27
_cell_measurement_theta_min      2.28
_cell_volume                     2424.60(12)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296.15
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0262
_diffrn_reflns_av_unetI/netI     0.0242
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            15050
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.527
_diffrn_reflns_theta_min         2.814
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.388
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.6566
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014) was used for absorption correction.
wR2(int) was 0.0589 before and 0.0390 after correction.
The Ratio of minimum to maximum transmission is 0.8800.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            green
_exptl_crystal_colour_primary    green
_exptl_crystal_density_diffrn    1.735
_exptl_crystal_description       block
_exptl_crystal_F_000             1272
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.798
_refine_diff_density_min         -0.486
_refine_diff_density_rms         0.070
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     132
_refine_ls_number_reflns         3695
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0493
_refine_ls_R_factor_gt           0.0322
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0399P)^2^+1.8663P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0792
_refine_ls_wR_factor_ref         0.0876
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                2795
_reflns_number_total             3695
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ICA-2020-507-119519.cif
_cod_data_source_block           2
_cod_database_code               1564651
_shelx_estimated_absorpt_t_max   0.763
_shelx_estimated_absorpt_t_min   0.687
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Uiso/Uaniso restraints and constraints
Uanis(C2) = Uanis(C3)
3.a Aromatic/amide H refined with riding coordinates:
 N2(H2), C3(H3), C4(H4), C5(H5)
3.b Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C), C8(H8A,H8B,H8C)
;