Targeted synthesis of cadmium(ii) Schiff base complexes towards corrosion inhibition on mild steel
Das, Mriganka; Biswas, Amrita; Kundu, Bidyut Kumar; Mobin, Shaikh M.; Udayabhanu, G.; Mukhopadhyay, Suman; RSC Adv. 7 (2017) 48569–; doi:10.1039/C7RA08633D

data_7229340
_publ_section_title
;
 Targeted synthesis of cadmium(ii) Schiff base complexes towards corrosion
 inhibition on mild steel
;
_journal_issue                   77
_journal_name_full               'RSC Adv.'
_journal_page_first              48569
_journal_paper_doi               10.1039/C7RA08633D
_journal_volume                  7
_journal_year                    2017
_chemical_formula_sum            'C28 H42 Cd2 N18'
_chemical_formula_weight         855.59
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2016-08-11 deposited with the CCDC.
2017-10-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 100.828(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   19.8810(4)
_cell_length_b                   10.8934(2)
_cell_length_c                   16.2898(3)
_cell_measurement_reflns_used    23281
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      32.0270
_cell_measurement_theta_min      3.2300
_cell_volume                     3465.10(12)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.,'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_molecular_graphics    Ortep3
_computing_publication_material  Shelx97
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0306
_diffrn_reflns_av_unetI/netI     0.0183
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            32482
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         25.000
_diffrn_reflns_theta_min         2.911
_exptl_absorpt_coefficient_mu    1.277
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.79925
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.640
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1728
_exptl_crystal_size_max          0.330
_exptl_crystal_size_mid          0.260
_exptl_crystal_size_min          0.210
_refine_diff_density_max         0.480
_refine_diff_density_min         -0.445
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     435
_refine_ls_number_reflns         6087
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0250
_refine_ls_R_factor_gt           0.0220
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0249P)^2^+2.5522P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0554
_refine_ls_wR_factor_ref         0.0580
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5591
_reflns_number_total             6087
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7ra08633d2.cif
_cod_data_source_block           shelx_CCDC1
_cod_database_code               7229340
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.678
_shelx_estimated_absorpt_t_max   0.775
_shelx_res_checksum              14262