Polynuclear chloromercurate(II) systems in their chloropyridinium salts
Linden, Anthony; James, Bruce D.; Liesegang, John; Gonis, Nick; Acta Crystallographica Section B 55 (1999) 396–409; doi:10.1107/S010876819801550X

data_2003135
_publ_section_title
;
 Polynuclear chloromercurate(II) systems in their chloropyridinium
 salts
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              396
_journal_page_last               409
_journal_paper_doi               10.1107/S010876819801550X
_journal_volume                  55
_journal_year                    1999
_chemical_formula_moiety         '(C5 H5 Cl N 1+)4, Hg3 Cl10 4-'
_chemical_formula_structural     '(C5 H5 Cl N 1+)4, Hg Cl2, (Hg Cl4 2-)2'
_chemical_formula_sum            'C20 H20 Cl14 Hg3 N4'
_chemical_formula_weight         1414.52
_chemical_melting_point          374.0(10)
_chemical_name_systematic
;
tetrakis(4-chloropyridinium) decachlorotrimercurate(II)
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                84.41(2)
_cell_angle_beta                 74.81(2)
_cell_angle_gamma                87.34(2)
_cell_formula_units_Z            1
_cell_length_a                   9.907(3)
_cell_length_b                   13.226(2)
_cell_length_c                   7.282(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    173.0(10)
_cell_measurement_theta_max      20.0
_cell_measurement_theta_min      19.5
_cell_volume                     916.2(4)
_computing_cell_refinement
;
MSC/AFC Diffractometer Control Software (Molecular Structure
Corporation, 1991)
;
_computing_data_collection
;
MSC/AFC Diffractometer Control Software (Molecular Structure
Corporation, 1991)
;
_computing_data_reduction
;
TEXSAN PROCESS (Molecular Structure Corporation, 1989)
;
_computing_molecular_graphics    'ORTEPIII (Burnett & Johnson, 1996)'
_computing_publication_material
;
TEXSAN FINISH (Molecular Structure Corporation, 1989)
 and local programs
;
_computing_structure_refinement
;
TEXSAN LS (Molecular Structure Corporation, 1989)
;
_computing_structure_solution    'DIRDIF92 Patterson (Beurskens et al., 1992)'
_diffrn_ambient_temperature      173.0(10)
_diffrn_measurement_device_type  'Rigaku AFC-5R diffractometer'
_diffrn_measurement_method       \w--2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Rigaku rotating anode generator'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.019
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            5621
_diffrn_reflns_theta_max         30
_diffrn_reflns_theta_min         2.5
_diffrn_standards_decay_%        'no decay'
_diffrn_standards_interval_count 150
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    13.58
_exptl_absorpt_correction_T_max  0.270
_exptl_absorpt_correction_T_min  0.055
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details   '(De Meulenaer & Tompa, 1965)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.564
_exptl_crystal_density_meas      ?
_exptl_crystal_description       prism
_exptl_crystal_F_000             646
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.11
_refine_diff_density_max         2.31
_refine_diff_density_min         -2.12
_refine_ls_abs_structure_details ' ?'
_refine_ls_extinction_coef       1.8E-6(1)
_refine_ls_extinction_method     'Zachariasen (1963)'
_refine_ls_goodness_of_fit_ref   2.200
_refine_ls_hydrogen_treatment    refU
_refine_ls_matrix_type           full
_refine_ls_number_constraints    0
_refine_ls_number_parameters     198
_refine_ls_number_reflns         4398
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0550
_refine_ls_R_factor_gt           0.0383
_refine_ls_shift/su_max          0.003
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     w=1/[\s^2^(F~o~)+(0.005F~o~)^2^]
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_all         0.0396
_refine_ls_wR_factor_ref         0.0386
_reflns_number_gt                4398
_reflns_number_total             5337
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            sh0124.cif
_cod_data_source_block           III
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '373-375' was changed to '374.0(10)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value '373-375' was changed to '374.0(10)'
- the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               2003135