Synthesis and characterisation of aluminium and magnesium complexes supported by pendant oxalic amidinate ligands
Chen, Chi-Tien; Huang, Chi-An; Tzeng, Yi-Ren; Huang, Bor-Hunn; Dalton Transactions  (2003) 2585–; doi:10.1039/b301744c

data_7012846
_publ_section_title
;
 Synthesis and characterisation of aluminium and magnesium complexes
 supported by pendant oxalic amidinate ligands
;
_journal_issue                   12
_journal_name_full               'Dalton Transactions'
_journal_page_first              2585
_journal_paper_doi               10.1039/b301744c
_journal_year                    2003
_chemical_formula_moiety         '[C6H5N=C{NH(CH2)2NMe2}-C{NH(CH2)2NMe2}=NC6H5]'
_chemical_formula_sum            'C22 H32 N6'
_chemical_formula_weight         380.53
_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            8
_cell_length_a                   9.5940(6)
_cell_length_b                   17.2591(11)
_cell_length_c                   27.7148(18)
_cell_measurement_reflns_used    7348
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      22.381
_cell_measurement_theta_min      2.470
_cell_volume                     4589.1(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0326
_diffrn_reflns_av_sigmaI/netI    0.0373
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            25891
_diffrn_reflns_theta_full        26.03
_diffrn_reflns_theta_max         26.03
_diffrn_reflns_theta_min         1.88
_exptl_absorpt_coefficient_mu    0.068
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.527
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.102
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelpiped
_exptl_crystal_F_000             1648
_exptl_crystal_size_max          0.80
_exptl_crystal_size_mid          0.72
_exptl_crystal_size_min          0.61
_refine_diff_density_max         0.503
_refine_diff_density_min         -0.296
_refine_diff_density_rms         0.047
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -1(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.254
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     505
_refine_ls_number_reflns         9046
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.254
_refine_ls_R_factor_all          0.1078
_refine_ls_R_factor_gt           0.0688
_refine_ls_shift/su_max          0.832
_refine_ls_shift/su_mean         0.078
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1885
_refine_ls_wR_factor_ref         0.2078
_reflns_number_gt                5606
_reflns_number_total             9046
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b301744c.txt
_cod_data_source_block           compound_2
_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      P2(1)2(1)2(1)
_cod_database_code               7012846