Self-Assembly of CuII and NiII [2 x 2] Grid Complexes and a Binuclear CuII Complex with a New Semiflexible Substituted Pyrazine Ligand: Multiple Anion Encapsulation and Magnetic Properties
Dilovan S. Cati; Joan Ribas; Jordi Ribas-Ariño; Helen Stoeckli-Evans; Inorganic Chemistry 43 (2004) 1021–1030; doi:10.1021/ic030174s

data_4310494
_publ_section_title
;
 Self-Assembly of CuII and NiII [2 x 2] Grid Complexes and a Binuclear
 CuII Complex with a New Semiflexible Substituted Pyrazine Ligand:
 Multiple Anion Encapsulation and Magnetic Properties
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1021
_journal_page_last               1030
_journal_paper_doi               10.1021/ic030174s
_journal_volume                  43
_journal_year                    2004
_chemical_formula_sum            'C18 H19 Cl3 Cu2 N6 O4'
_chemical_formula_weight         616.82
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 1'
_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                 107.894(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.6859(7)
_cell_length_b                   28.060(2)
_cell_length_c                   9.5334(9)
_cell_measurement_reflns_used    2987
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      25.96
_cell_measurement_theta_min      2.24
_cell_volume                     2211.1(3)
_computing_cell_refinement       'CELL (Stoe IPDS Software, 2000)'
_computing_data_collection       'EXPOSE (Stoe IPDS Software, 2000)'
_computing_data_reduction        'INTEGRATE (Stoe IPDS Software, 2000)'
_computing_molecular_graphics    'PLATON99 (Spek, 1990)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 0.81\%A
_diffrn_measurement_device_type  'STOE IPDS'
_diffrn_measurement_method       'phi oscillation'
_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  0.2200
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_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
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_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
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_diffrn_reflns_theta_max         25.96
_diffrn_reflns_theta_min         2.24
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.326
_exptl_absorpt_correction_T_max  0.869
_exptl_absorpt_correction_T_min  0.569
_exptl_absorpt_correction_type   empirical_DIFABS
_exptl_absorpt_process_details   'DIFABS (PLATON, Spek 1990)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.853
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1240
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.08
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_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     318
_refine_ls_number_reflns         4257
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.503
_refine_ls_R_factor_all          0.1620
_refine_ls_R_factor_gt           0.0358
_refine_ls_shift/su_max          0.040
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0001P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0506
_refine_ls_wR_factor_ref         0.0808
_reflns_number_gt                1408
_reflns_number_total             4257
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            ic030174s_si2_2.cif
_cod_data_source_block           cpd1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

The following automatic conversions were performed:

data name '_atom_site_symetry_multiplicity' was replaced with
'_atom_site_symmetry_multiplicity' as specified in the replacement
file 'data/replacement-values/replacement_tags.lst'.

Automatic conversion script
Id: cif_correct_tags 9268 2022-04-12 08:56:07Z antanas 
;
_cod_original_cell_volume        2211.2(3)
_cod_original_sg_symbol_H-M      'P 21/a'
_cod_database_code               4310494