Pyridine complexes of mercury(ii)halides: Implications of a soft metal center for crystal engineering.
Hu, Chunhua; Kalf, Irmgard; Englert, Ulli; CrystEngComm 9 (2007) 603–; doi:10.1039/b701907f

data_7202784
_publ_section_title
;
 Pyridine complexes of mercury(ii)halides: Implications of a soft metal
 center for crystal engineering.
;
_journal_issue                   7
_journal_name_full               CrystEngComm
_journal_page_first              603
_journal_paper_doi               10.1039/b701907f
_journal_volume                  9
_journal_year                    2007
_chemical_formula_sum            'C5 H3 Cl2 Hg I2 N'
_chemical_formula_weight         602.37
_chemical_name_common            'Compound 7'
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 115.470(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   30.270(7)
_cell_length_b                   4.2661(10)
_cell_length_c                   18.671(4)
_cell_measurement_reflns_used    10928
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      28.33
_cell_measurement_theta_min      2.23
_cell_volume                     2176.7(9)
_computing_cell_refinement       'SMART (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT+ (Bruker, 1999)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXTL (Sheldrick, 1998)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 1998)'
_computing_structure_solution    'SHELXTL (Sheldrick, 1998)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART APEX CCD diffractometer'
_diffrn_measurement_method       '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  0.0515
_diffrn_reflns_av_sigmaI/netI    0.0483
_diffrn_reflns_limit_h_max       40
_diffrn_reflns_limit_h_min       -40
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            10928
_diffrn_reflns_theta_full        28.33
_diffrn_reflns_theta_max         28.33
_diffrn_reflns_theta_min         2.23
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    20.249
_exptl_absorpt_correction_T_max  0.545
_exptl_absorpt_correction_T_min  0.246
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    3.676
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             2080
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.03
_refine_diff_density_max         2.651
_refine_diff_density_min         -1.640
_refine_diff_density_rms         0.275
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     100
_refine_ls_number_reflns         2713
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0433
_refine_ls_R_factor_gt           0.0341
_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^)+(0.0284P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0689
_refine_ls_wR_factor_ref         0.0716
_reflns_number_gt                2301
_reflns_number_total             2713
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b701907f.txt
_cod_data_source_block           hc188
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7202784