(Croconato-κ^2^<i>O</i>,<i>O</i>')bis(1,10-phenanthroline-κ^2^<i>N</i>,<i>N</i>')cobalt(II), and the nickel(II) and copper(II) analogues
Chen, Xia; Chen, Hong-Feng; Xue, Gang; Chen, Hong-Yu; Yu, Wen-Tao; Fang, Qi; Acta Crystallographica Section C 63 (2007) m166–m168; doi:10.1107/S0108270107009377

data_2015898
_publ_section_title
;(Croconato-\k^2^<i>O</i>,<i>O</i>')bis(1,10-phenanthroline-\k^2^<i>N</i>,<i>N</i>')cobalt(II),
 and the nickel(II) and copper(II) analogues
;
_journal_coeditor_code           GD3090
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              m166
_journal_page_last               m168
_journal_paper_doi               10.1107/S0108270107009377
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          '[Ni (C5 O5) (C12 H8 N2)2]'
_chemical_formula_moiety         'C29 H16 N4 Ni O5'
_chemical_formula_sum            'C29 H16 N4 Ni O5'
_chemical_formula_weight         559.17
_chemical_name_systematic
;
(Croconato-\k^2^O,O')bis(1,10-phenanthroline-\k^2^N,N')nickel(II)
;
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_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                   12.2618(16)
_cell_length_b                   10.929(2)
_cell_length_c                   17.171(3)
_cell_measurement_reflns_used    41
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      12.49
_cell_measurement_theta_min      4.72
_cell_volume                     2301.1(7)
_computing_cell_refinement       XSCANS
_computing_data_collection       'XSCANS (Bruker, 1996)'
_computing_data_reduction        XSCANS
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       \w
_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  0.0413
_diffrn_reflns_av_sigmaI/netI    0.0428
_diffrn_reflns_limit_h_max       1
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       1
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -1
_diffrn_reflns_number            2872
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.50
_diffrn_standards_decay_%        1
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.896
_exptl_absorpt_correction_T_max  0.8537
_exptl_absorpt_correction_T_min  0.7749
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(XSCANS; Bruker, 1996)'
_exptl_crystal_colour            Brown
_exptl_crystal_density_diffrn    1.614
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1144
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.300
_refine_diff_density_min         -0.408
_refine_ls_extinction_coef       0.0061(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     179
_refine_ls_number_reflns         2245
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0838
_refine_ls_R_factor_gt           0.0429
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0387P)^2^+3.6078P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0928
_refine_ls_wR_factor_ref         0.1162
_reflns_number_gt                1457
_reflns_number_total             2245
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            gd3090.cif
_cod_data_source_block           II
_cod_original_sg_symbol_Hall     '-P 2n 2ab '
_cod_database_code               2015898
_cod_database_fobs_code          2015898