Pyrazine-imide complexes: reversible redox and MOF building blocks.
Cowan, Matthew G.; Miller, Reece G.; Brooker, Sally; Dalton transactions (Cambridge, England : 2003) 44 (2015) 2880–2892; doi:10.1039/c4dt03407d

data_7033443
_publ_section_title
;
 Pyrazine-imide complexes: reversible redox and MOF building blocks.
;
_journal_issue                   6
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2880
_journal_page_last               2892
_journal_paper_doi               10.1039/c4dt03407d
_journal_volume                  44
_journal_year                    2015
_chemical_formula_moiety         'C20 H12 Cu1 N10 O4'
_chemical_formula_sum            'C20 H12 Cu N10 O4'
_chemical_formula_weight         519.95
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-12-18 deposited with the CCDC.
2014-12-18 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 92.340(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.8489(4)
_cell_length_b                   27.4492(14)
_cell_length_c                   8.5398(4)
_cell_measurement_reflns_used    9970
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      26.382
_cell_measurement_theta_min      2.303
_cell_volume                     2072.55(17)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      90(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker Kappa Apex II area detector'
_diffrn_measurement_method       '\f and \w 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  0.0415
_diffrn_reflns_av_sigmaI/netI    0.0266
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       33
_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            27699
_diffrn_reflns_theta_full        26.38
_diffrn_reflns_theta_max         26.38
_diffrn_reflns_theta_min         1.48
_exptl_absorpt_coefficient_mu    1.108
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.5769
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALE(Bruker, 2004)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.666
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1052
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.460
_refine_diff_density_min         -0.443
_refine_diff_density_rms         0.070
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.172
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         4233
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.172
_refine_ls_R_factor_all          0.0402
_refine_ls_R_factor_gt           0.0366
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0146P)^2^+4.0063P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0855
_refine_ls_wR_factor_ref         0.0871
_reflns_number_gt                3908
_reflns_number_total             4233
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt03407d2.cif
_cod_data_source_block           mgc392
_cod_depositor_comments
'Adding full bibliography for 7033441--7033446.cif.'
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_original_formula_sum        'C20 H12 Cu1 N10 O4'
_cod_database_code               7033443