Supramolecular interaction patterns in the zinc(II) dichloride and tin(IV) tetrachloride complexes with dipyrido[<i>f</i>,<i>h</i>]quinoxaline-6,7-dicarbonitrile
Kozlov, Leonid; Goldberg, Israel; Acta Crystallographica Section C 64 (2008) m123–m126; doi:10.1107/S010827010800303X

data_2016508
_publ_section_title
;
 Supramolecular interaction patterns in the zinc(II) dichloride and
 tin(IV) tetrachloride complexes with
 dipyrido[<i>f</i>,<i>h</i>]quinoxaline-6,7-dicarbonitrile
;
_journal_coeditor_code           LN3086
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              m123
_journal_page_last               m126
_journal_paper_doi               10.1107/S010827010800303X
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          '[Sn Cl4 (C16 H6 N6)]'
_chemical_formula_moiety         'C16 H6 Cl4 N6 Sn'
_chemical_formula_sum            'C16 H6 Cl4 N6 Sn'
_chemical_formula_weight         542.77
_chemical_name_systematic
;
tetrachlorido(dipyrido[f,h]quinoxaline-6,7-dicarbonitrile)tin(IV)
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.8630(4)
_cell_length_b                   12.8457(3)
_cell_length_c                   9.8852(2)
_cell_measurement_reflns_used    2487
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      27.88
_cell_measurement_theta_min      2.47
_cell_volume                     1887.34(8)
_computing_cell_refinement       'DENZO (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1999)'
_computing_data_reduction        'DENZO (Otwinowski & Minor, 1997)'
_computing_molecular_graphics
;
ORTEPIII (Burnett & Johnson, 1996) and Mercury (Macrae <i>et al.</i>,
2006)
;
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR97 (Altomare <i>et al.</i>,  1994)'
_diffrn_ambient_temperature      110(2)
_diffrn_detector_area_resol_mean 12.8
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '1 deg. \f 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  0.0550
_diffrn_reflns_av_sigmaI/netI    0.0359
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            14219
_diffrn_reflns_theta_full        27.88
_diffrn_reflns_theta_max         27.88
_diffrn_reflns_theta_min         2.47
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.934
_exptl_absorpt_correction_T_max  0.9152
_exptl_absorpt_correction_T_min  0.4919
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Blessing, 1995)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.910
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1048
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.531
_refine_diff_density_min         -0.775
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     127
_refine_ls_number_reflns         2292
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0560
_refine_ls_R_factor_gt           0.0378
_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^)+(0.0419P)^2^+1.6487P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0818
_refine_ls_wR_factor_ref         0.0892
_reflns_number_gt                1822
_reflns_number_total             2292
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ln3086.cif
_cod_data_source_block           II
_cod_database_code               2016508
_cod_database_fobs_code          2016508