Zinc and cadmium complexes of an 18-membered N4O2 oxaaza-Schiff base macrocycle and the corresponding reduced form †
Adams, Harry; Bastida, Rufina; Fenton, David E.; Macías, Alejandro; Spey, Sharon E.; Valencia, Laura; Journal of the Chemical Society, Dalton Transactions  (1999) 4131–; doi:10.1039/a906372b

data_7027748
_publ_section_title
;
 Zinc and cadmium complexes of an 18-membered N4O2 oxaaza-Schiff base
 macrocycle and the corresponding reduced form&#x200A;&#x2020;
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_journal_issue                   23
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              4131
_journal_paper_doi               10.1039/a906372b
_journal_year                    1999
_chemical_formula_sum            'C27 H32 Cd Cl2 N6 O10'
_chemical_formula_weight         783.89
_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                   8.7260(5)
_cell_length_b                   10.5384(6)
_cell_length_c                   34.657(2)
_cell_measurement_temperature    293(2)
_cell_volume                     3187.0(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.928
_diffrn_measured_fraction_theta_max 0.928
_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  0.0608
_diffrn_reflns_av_sigmaI/netI    0.0509
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       43
_diffrn_reflns_limit_l_min       -46
_diffrn_reflns_number            21043
_diffrn_reflns_theta_full        28.91
_diffrn_reflns_theta_max         28.91
_diffrn_reflns_theta_min         1.18
_exptl_absorpt_coefficient_mu    0.917
_exptl_absorpt_correction_T_max  0.8167
_exptl_absorpt_correction_T_min  0.7456
_exptl_absorpt_correction_type   semi-empirical
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.634
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1592
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.658
_refine_diff_density_min         -0.324
_refine_diff_density_rms         0.075
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.040(19)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.994
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     445
_refine_ls_number_reflns         7601
_refine_ls_number_restraints     30
_refine_ls_restrained_S_all      0.997
_refine_ls_R_factor_all          0.0430
_refine_ls_R_factor_gt           0.0349
_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^)+(0.0471P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0731
_refine_ls_wR_factor_ref         0.0826
_reflns_number_gt                6621
_reflns_number_total             7601
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            906372bsup1.cif
_cod_data_source_block           ifn20m
_cod_depositor_comments
;
The following automatic conversions were performed:
'_atom_site_symetry_multiplicity' tag replaced with
'_atom_site_symmetry_multiplicity'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7027748