Alkaline Side-Coordination Strategy for the Design of Nickel(II) and Nickel(III) Bis(1,2-diselenolene) Complex Based Materials
Xavi Ribas; João C. Dias; Jorge Morgado; Klaus Wurst; Isabel C. Santos; Manuel Almeida; José Vidal-Gancedo; Jaume Veciana; Concepció Rovira; Inorganic Chemistry 43 (2004) 3631–3641; doi:10.1021/ic049860x

data_4311124
_publ_section_title
;
 Alkaline Side-Coordination Strategy for the Design of Nickel(II) and
 Nickel(III) Bis(1,2-diselenolene) Complex Based Materials
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3631
_journal_page_last               3641
_journal_paper_doi               10.1021/ic049860x
_journal_volume                  43
_journal_year                    2004
_chemical_formula_sum            'C8 H8 N4 Na2 Ni O2 Se4'
_chemical_formula_weight         612.71
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                   14.6372(4)
_cell_length_b                   6.8642(2)
_cell_length_c                   15.5030(4)
_cell_measurement_reflns_used    9405
_cell_measurement_temperature    233(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      1.0
_cell_volume                     1557.63(7)
_computing_data_collection       'Kappa CCD'
_computing_data_reduction        'DENZO and SCALEPACK'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      233(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Kappa CCD'
_diffrn_measurement_method       'phi- and omega-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  0.0591
_diffrn_reflns_av_sigmaI/netI    0.0308
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            8369
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.63
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    10.653
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    2.613
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1144
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.116
_refine_diff_density_min         -0.953
_refine_diff_density_rms         0.130
_refine_ls_extinction_coef       0.0028(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   1.115
_refine_ls_hydrogen_treatment    'mixed, refined at O1'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     106
_refine_ls_number_reflns         1371
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.115
_refine_ls_R_factor_all          0.0325
_refine_ls_R_factor_gt           0.0293
_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^)+(0.0405P)^2^+1.9030P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0751
_refine_ls_wR_factor_ref         0.0770
_reflns_number_gt                1248
_reflns_number_total             1371
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic049860xsi20040203_051712.cif
_cod_data_source_block           x3p37
_cod_database_code               4311124