Formation of Infinite Linear Mercury Metal Chains Assisted by Face-to-Face π−π (Aryl−Aryl) Stacking Interactions
Wu, Jing-Yun; Hsu, Hung-Yu; Chan, Chun-Chieh; Wen, Yuh-Sheng; Tsai, Chiitang; Lu, Kuang-Lieh; Crystal Growth & Design 9 (2009) 258–; doi:10.1021/cg8004163

data_4508936
_publ_section_title
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 Formation of Infinite Linear Mercury Metal Chains Assisted by
 Face-to-Face \p&#x2212;\p (Aryl&#x2212;Aryl) Stacking Interactions
;
_journal_issue                   1
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              258
_journal_paper_doi               10.1021/cg8004163
_journal_volume                  9
_journal_year                    2009
_chemical_formula_sum            'C8 H6 Cl2 Hg N4'
_chemical_formula_weight         429.66
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.8017(9)
_cell_angle_beta                 91.5785(9)
_cell_angle_gamma                93.7126(10)
_cell_formula_units_Z            2
_cell_length_a                   3.7705(1)
_cell_length_b                   10.4396(3)
_cell_length_c                   12.9752(4)
_cell_measurement_reflns_used    all
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      1.69
_cell_volume                     509.41(3)
_computing_cell_refinement       DENZO-SMN
_computing_data_collection       'NONIUS COLLECT'
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(1)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'NONIUS KappaCCD'
_diffrn_measurement_method       'phi and 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  0.0713
_diffrn_reflns_av_sigmaI/netI    0.0528
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            9377
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.57
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    15.599
_exptl_absorpt_correction_T_max  0.465
_exptl_absorpt_correction_T_min  0.304
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.801
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             392
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.782
_refine_diff_density_min         -1.760
_refine_diff_density_rms         0.509
_refine_ls_extinction_coef       0.0196(12)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.181
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     137
_refine_ls_number_reflns         2308
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.181
_refine_ls_R_factor_all          0.0402
_refine_ls_R_factor_gt           0.0318
_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^)+(0.0489P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0709
_refine_ls_wR_factor_ref         0.0930
_reflns_number_gt                2061
_reflns_number_total             2308
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg8004163sup1.cif
_cod_data_source_block           cpd1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not_measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4508936