Enantioselectivity in Ni(II) Schiff-base complexes derived from amino-acids and (S)-o-N-(N-benzylprolyl)aminobenzophenone: molecular structure of several chiral Ni(II) Schiff-base complexes, circular dichroism and molecular mechanics studies.
Pessoa, J. Costa; Correia, I.; Galvão, A; Gameiro, A.; Felix, V.; Fiuza, E.; Dalton transactions (Cambridge, England : 2003)  (2005) 2312–2321; doi:10.1039/b503786g

data_7008503
_publ_section_title
;
 Enantioselectivity in Ni(II) Schiff-base complexes derived from
 amino-acids and (S)-o-N-(N-benzylprolyl)aminobenzophenone: molecular
 structure of several chiral Ni(II) Schiff-base complexes, circular
 dichroism and molecular mechanics studies.
;
_journal_issue                   13
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2312
_journal_page_last               2321
_journal_paper_doi               10.1039/b503786g
_journal_year                    2005
_chemical_formula_sum            'C28 H27 N3 Ni O4'
_chemical_formula_weight         528.29
_chemical_name_systematic
;
?
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 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                   9.564(2)
_cell_length_b                   10.1150(10)
_cell_length_c                   25.500(7)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      14.0
_cell_measurement_theta_min      10.0
_cell_volume                     2466.9(9)
_computing_cell_refinement       MOLEN
_computing_data_collection       MOLEN
_computing_data_reduction        MOLEN
_computing_molecular_graphics    ORTEP3
_computing_publication_material  WINGX
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SHELXS86
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  MACH3
_diffrn_measurement_method       omega-2-teta
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0363
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            2493
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.60
_diffrn_standards_decay_%        0.06
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    0.827
_exptl_absorpt_correction_T_max  95.6
_exptl_absorpt_correction_T_min  85.5
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   psi-scans
_exptl_crystal_colour            red/orange
_exptl_crystal_density_diffrn    1.422
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       Parallelepiped
_exptl_crystal_F_000             1104
_exptl_crystal_size_max          .5
_exptl_crystal_size_mid          .4
_exptl_crystal_size_min          .3
_refine_diff_density_max         0.409
_refine_diff_density_min         -0.357
_refine_diff_density_rms         0.079
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.117
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     337
_refine_ls_number_reflns         2493
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.117
_refine_ls_R_factor_all          0.0847
_refine_ls_R_factor_gt           0.0529
_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^)+(0.0721P)^2^+2.8991P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1249
_refine_ls_wR_factor_ref         0.1571
_reflns_number_gt                1862
_reflns_number_total             2493
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b503786g.txt
_cod_data_source_block           BBPIM
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P212121
_cod_database_code               7008503