π-π Stacking, spin density and magnetic coupling strength.
Chi, Yan-Hui; Shi, Jing-Min; Li, Hong-Nan; Wei, Wei; Cottrill, Ethan; Pan, Ning; Chen, Hu; Liang, Yuan; Yu, Li; Zhang, Yi-Quan; Hou, Chao; Dalton transactions (Cambridge, England : 2003) 42 (2013) 15559–15569; doi:10.1039/c3dt51476e

data_7023557
_publ_section_title
;
 \p-\p Stacking, spin density and magnetic coupling strength.
;
_journal_issue                   44
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              15559
_journal_page_last               15569
_journal_paper_doi               10.1039/c3dt51476e
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C15 H10 Cu N6 O6'
_chemical_formula_weight         433.83
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 111.111(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.7171(19)
_cell_length_b                   25.760(6)
_cell_length_c                   8.772(2)
_cell_measurement_reflns_used    2633
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      23.2405
_cell_measurement_theta_min      2.6115
_cell_volume                     1626.8(7)
_computing_cell_refinement       'SAINT (Bruker, 1997)'
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material  'SHELXTL and local programs'
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Bruker, 2001)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker Smart APEX CCD'
_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  0.0329
_diffrn_reflns_av_sigmaI/netI    0.0418
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            9445
_diffrn_reflns_theta_full        26.99
_diffrn_reflns_theta_max         26.99
_diffrn_reflns_theta_min         2.61
_exptl_absorpt_coefficient_mu    1.395
_exptl_absorpt_correction_T_max  0.8731
_exptl_absorpt_correction_T_min  0.6639
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.771
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             876
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.620
_refine_diff_density_min         -0.730
_refine_diff_density_rms         0.092
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         3519
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0762
_refine_ls_R_factor_gt           0.0595
_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^)+(0.0927P)^2^+1.0546P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1569
_refine_ls_wR_factor_ref         0.1652
_reflns_number_gt                2678
_reflns_number_total             3519
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt51476e.txt
_cod_data_source_block           91126bm
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_cell_volume        1626.7(7)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7023557