Unusual π−‒π− stacking interactions between 5,5′-azotetrazolate(AT) anions in six AT based 3d metal photochromic complexes
Lin, Jiao-Min; Qiu, Yan-Xuan; Chen, Wen-Bin; Yang, Meng; Zhou, Ai-Ju; Dong, Wen; Tian, Chang-En; CrystEngComm 14 (2012) 2779–; doi:10.1039/c2ce06606h

data_7207645
_publ_section_title
;
 Unusual \p&#x2212;--\p&#x2212; stacking interactions between
 5,5&#x2032;-azotetrazolate(AT) anions in six AT based 3d metal
 photochromic complexes
;
_journal_issue                   8
_journal_name_full               CrystEngComm
_journal_page_first              2779
_journal_paper_doi               10.1039/c2ce06606h
_journal_volume                  14
_journal_year                    2012
_chemical_formula_sum            'C10 H28 N26 Ni O2'
_chemical_formula_weight         603.27
_chemical_name_systematic
;
?
;
_space_group_IT_number           13
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yc'
_symmetry_space_group_name_H-M   'P 1 2/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                 98.464(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   11.9182(3)
_cell_length_b                   7.2555(2)
_cell_length_c                   14.5570(4)
_cell_measurement_reflns_used    2882
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.490
_cell_measurement_theta_min      2.81
_cell_volume                     1245.07(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SMART'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean none
_diffrn_measured_fraction_theta_full 0.942
_diffrn_measured_fraction_theta_max 0.942
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0190
_diffrn_reflns_av_sigmaI/netI    0.0210
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7608
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.81
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.848
_exptl_absorpt_correction_T_max  0.891
_exptl_absorpt_correction_T_min  0.826
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.609
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             628
_exptl_crystal_size_max          0.240
_exptl_crystal_size_mid          0.188
_exptl_crystal_size_min          0.136
_refine_diff_density_max         0.644
_refine_diff_density_min         -0.343
_refine_diff_density_rms         0.051
_refine_ls_extinction_coef       0.0014(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     229
_refine_ls_number_reflns         2861
_refine_ls_number_restraints     15
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0348
_refine_ls_R_factor_gt           0.0302
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0419P)^2^+0.6029P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0802
_refine_ls_wR_factor_ref         0.0832
_reflns_number_gt                2398
_reflns_number_total             2696
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce06606h.txt
_cod_data_source_block           3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' 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 
;
_cod_original_sg_symbol_H-M      P2/c
_cod_database_code               7207645