Coordination properties of two new Schiff-base phenoxy-carboxylates and comparative study of their antioxidant activities
Boussadia, Ahlem; Beghidja, Adel; Gali, Lynda; Beghidja, Chahrazed; Elhabiri, Mourad; Rabu, Pierre; Rogez, Guillaume; Inorganica Chimica Acta 508 (2020) 119656–; doi:10.1016/j.ica.2020.119656

data_1564634
_publ_section_title
;
 Coordination properties of two new Schiff-base phenoxy-carboxylates and
 comparative study of their antioxidant activities
;
_journal_name_full               'Inorganica Chimica Acta'
_journal_page_first              119656
_journal_paper_doi               10.1016/j.ica.2020.119656
_journal_volume                  508
_journal_year                    2020
_chemical_formula_moiety         '2(C14 H11 N O4)'
_chemical_formula_sum            'C28 H22 N2 O8'
_chemical_formula_weight         514.47
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_cell_angle_alpha                90
_cell_angle_beta                 103.904(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.0325(4)
_cell_length_b                   10.4098(4)
_cell_length_c                   19.4563(7)
_cell_measurement_reflns_used    2190
_cell_measurement_temperature    296.15
_cell_measurement_theta_max      22.27
_cell_measurement_theta_min      2.99
_cell_volume                     2365.61(15)
_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 0.987
_diffrn_measured_fraction_theta_max 0.988
_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  0.0704
_diffrn_reflns_av_unetI/netI     0.0791
_diffrn_reflns_Laue_measured_fraction_full 0.987
_diffrn_reflns_Laue_measured_fraction_max 0.988
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            18202
_diffrn_reflns_point_group_measured_fraction_full 0.987
_diffrn_reflns_point_group_measured_fraction_max 0.988
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.418
_diffrn_reflns_theta_min         2.912
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.107
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.6649
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014) was used for absorption correction.
wR2(int) was 0.0762 before and 0.0653 after correction.
The Ratio of minimum to maximum transmission is 0.8920.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            'light orange'
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.445
_exptl_crystal_description       block
_exptl_crystal_F_000             1072
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.188
_refine_diff_density_min         -0.211
_refine_diff_density_rms         0.046
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.984
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     347
_refine_ls_number_reflns         4791
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.984
_refine_ls_R_factor_all          0.1245
_refine_ls_R_factor_gt           0.0509
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0653P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1152
_refine_ls_wR_factor_ref         0.1439
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                2474
_reflns_number_total             4791
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ICA-2020-508-119656.cif
_cod_data_source_block           L2
_cod_database_code               1564634
_shelx_estimated_absorpt_t_max   0.988
_shelx_estimated_absorpt_t_min   0.984
_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 O(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 N1A(H1A), C3A(H3AA), C4A(H4AA), C7A(H7A), C8A(H8A), C11A(H11A), C12A(H12A),
 C13A(H13A), C14A(H14A), N1B(H1B), C3B(H3BA), C4B(H4B), C7B(H7B), C8B(H8B),
 C11B(H11B), C12B(H12B), C13B(H13B), C14B(H14B)
2.b Idealised tetrahedral OH refined as rotating group:
 O3A(H3A), O4A(H4A), O2B(H2B), O3B(H3B)
;