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_7023559
_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            'C16 H12 Cl2 Cu N4'
_chemical_formula_weight         394.74
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                93.092(4)
_cell_angle_beta                 98.507(4)
_cell_angle_gamma                93.259(4)
_cell_formula_units_Z            2
_cell_length_a                   8.113(2)
_cell_length_b                   8.852(2)
_cell_length_c                   10.802(3)
_cell_measurement_reflns_used    1618
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      28.8215
_cell_measurement_theta_min      2.309
_cell_volume                     764.5(3)
_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      293(2)
_diffrn_measured_fraction_theta_full 0.972
_diffrn_measured_fraction_theta_max 0.972
_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  0.0184
_diffrn_reflns_av_sigmaI/netI    0.0442
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            3964
_diffrn_reflns_theta_full        25.49
_diffrn_reflns_theta_max         25.49
_diffrn_reflns_theta_min         1.91
_exptl_absorpt_coefficient_mu    1.781
_exptl_absorpt_correction_T_max  0.8420
_exptl_absorpt_correction_T_min  0.7399
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            prism
_exptl_crystal_density_diffrn    1.715
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       green
_exptl_crystal_F_000             398
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.417
_refine_diff_density_min         -0.424
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         2766
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.014
_refine_ls_R_factor_all          0.0512
_refine_ls_R_factor_gt           0.0402
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0517P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0916
_refine_ls_wR_factor_ref         0.0949
_reflns_number_gt                2255
_reflns_number_total             2766
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt51476e.txt
_cod_data_source_block           110908am
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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        764.4(4)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7023559