Influence of N-heteroaromatic π-π stacking on supramolecular assembly and coordination geometry; effect of a single-atom change in the ligand.
Khavasi, Hamid Reza; Mir Mohammad Sadegh, Bahareh; Dalton transactions (Cambridge, England : 2003) 44 (2015) 5488–5502; doi:10.1039/c4dt03518f

data_7033844
_publ_section_title
;
 Influence of N-heteroaromatic \p-\p stacking on supramolecular assembly
 and coordination geometry; effect of a single-atom change in the ligand.
;
_journal_issue                   12
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5488
_journal_page_last               5502
_journal_paper_doi               10.1039/c4dt03518f
_journal_volume                  44
_journal_year                    2015
_chemical_formula_sum            'C28 H20 Br6 Hg3 N8 O2'
_chemical_formula_weight         1581.69
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           Moniclinic
_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
;
2014-07-23 deposited with the CCDC.
2015-01-27 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 91.498(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.8761(4)
_cell_length_b                   7.5061(4)
_cell_length_c                   29.2866(14)
_cell_measurement_reflns_used    17823
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      29.20
_cell_measurement_theta_min      2.59
_cell_volume                     1730.80(15)
_computing_cell_refinement       'X-Area 1.31 (Stoe & Cie GmbH, 2005)'
_computing_data_collection       'X-Area 1.31 (Stoe & Cie GmbH, 2005)'
_computing_data_reduction        'X-Area 1.31 (Stoe & Cie GmbH, 2005)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean '0.15 mm'
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'STOE IPDS II'
_diffrn_measurement_method       'rotation method'
_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  0.1007
_diffrn_reflns_av_sigmaI/netI    0.0681
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            17823
_diffrn_reflns_theta_full        29.20
_diffrn_reflns_theta_max         29.20
_diffrn_reflns_theta_min         2.59
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    20.240
_exptl_absorpt_correction_T_max  0.4646
_exptl_absorpt_correction_T_min  0.3712
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'shape of crystal determined optically'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    3.035
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             1420
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.736
_refine_diff_density_min         -1.329
_refine_diff_density_rms         0.217
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.107
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     214
_refine_ls_number_reflns         4654
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.0901
_refine_ls_R_factor_gt           0.0595
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0411P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1024
_refine_ls_wR_factor_ref         0.1121
_reflns_number_gt                3513
_reflns_number_total             4654
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt03518f2.cif
_cod_data_source_block           d:\determination\solution\672\kh672
_cod_depositor_comments
'Adding full bibliography for 7033842--7033846.cif.'
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7033844