Cationic and anionic 1D chains based on NH+⋯N charge-assisted hydrogen bonds in bipyridyl derivatives and polyiodides
Aragoni, M. Carla; Arca, Massimiliano; Caltagirone, Claudia; Castellano, Carlo; Demartin, Francesco; Garau, Alessandra; Isaia, Francesco; Lippolis, Vito; Montis, Riccardo; Pintus, Anna; CrystEngComm 14 (2012) 5809–; doi:10.1039/c2ce25212k

data_7208439
_publ_section_title
;
 Cationic and anionic 1D chains based on NH+&#x22EF;N charge-assisted
 hydrogen bonds in bipyridyl derivatives and polyiodides
;
_journal_issue                   18
_journal_name_full               CrystEngComm
_journal_page_first              5809
_journal_paper_doi               10.1039/c2ce25212k
_journal_volume                  14
_journal_year                    2012
_chemical_formula_sum            'C12 H8 I4 N4 S'
_chemical_formula_weight         747.88
_chemical_name_systematic
;
?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 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                 99.05(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.406(3)
_cell_length_b                   17.329(4)
_cell_length_c                   10.443(5)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      12.73
_cell_measurement_theta_min      6.92
_cell_volume                     1859.7(11)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'ENRAF NONIUS CAD4 DIFFRACTOMETER'
_diffrn_measurement_method       'omega scan'
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0489
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            2015
_diffrn_reflns_theta_full        26.91
_diffrn_reflns_theta_max         26.91
_diffrn_reflns_theta_min         3.07
_diffrn_standards_interval_count 100
_exptl_absorpt_coefficient_mu    6.813
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.810
_exptl_absorpt_correction_type   semiempirical
_exptl_absorpt_process_details   psi-scan
_exptl_crystal_colour            'dark brown'
_exptl_crystal_density_diffrn    2.671
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1344
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.526
_refine_diff_density_min         -0.572
_refine_diff_density_rms         0.129
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     98
_refine_ls_number_reflns         2015
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0880
_refine_ls_R_factor_gt           0.0294
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.006
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0230P)^2^+1.3632P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0531
_refine_ls_wR_factor_ref         0.0617
_reflns_number_gt                1272
_reflns_number_total             2015
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce25212k.txt
_cod_data_source_block           L12I2
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7208439