First Structural and Magnetic Studies of Ni Clusters Containing 2,6-Diacetylpyridine-dioxime as a Ligand
Albert Escuer; Jordi Esteban; Núria Aliaga-Alcalde; Mercé Font-Bardia; Teresa Calvet; Olivier Roubeau; Simon J. Teat; Inorganic Chemistry 49 (2010) 2259–2266; doi:10.1021/ic9020965

data_4315003
_publ_section_title
;
 First Structural and Magnetic Studies of Ni Clusters Containing
 2,6-Diacetylpyridine-dioxime as a Ligand
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2259
_journal_page_last               2266
_journal_paper_doi               10.1021/ic9020965
_journal_volume                  49
_journal_year                    2010
_chemical_formula_moiety         'C26 H32 N6 Ni3 O14, H2O'
_chemical_formula_sum            'C26 H34 N6 Ni3 O15'
_chemical_formula_weight         846.72
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 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                   13.663(6)
_cell_length_b                   14.994(4)
_cell_length_c                   18.343(6)
_cell_measurement_reflns_used    6640
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      31
_cell_measurement_theta_min      3
_cell_volume                     3758(2)
_computing_cell_refinement       AUTOMAR
_computing_data_collection       MARXDS
_computing_data_reduction        MARSCALE
_computing_molecular_graphics    'ORTEP (Brueggermann and Smith, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.903
_diffrn_measured_fraction_theta_max 0.777
_diffrn_measurement_device_type  'MAR345 with image plate detector'
_diffrn_measurement_method       'phi scan'
_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  0.0619
_diffrn_reflns_av_sigmaI/netI    0.0421
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            18703
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.30
_diffrn_reflns_theta_min         2.60
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    1.558
_exptl_absorpt_correction_T_max  0.87
_exptl_absorpt_correction_T_min  0.83
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.497
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1744
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         1.030
_refine_diff_density_min         -0.936
_refine_diff_density_rms         0.160
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.0(3)
_refine_ls_extinction_coef       0.035(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.128
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     463
_refine_ls_number_reflns         6158
_refine_ls_number_restraints     18
_refine_ls_restrained_S_all      1.127
_refine_ls_R_factor_all          0.0809
_refine_ls_R_factor_gt           0.0746
_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^)+(0.1399P)^2^+1.6054P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2076
_refine_ls_wR_factor_ref         0.2122
_reflns_number_gt                5620
_reflns_number_total             6158
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic9020965_si_001_4.cif
_cod_data_source_block           jomm111a
_cod_database_code               4315003