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_4508937
_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 Br4 Hg2 N4'
_chemical_formula_weight         878.99
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           63
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-C 2c 2'
_symmetry_space_group_name_H-M   'C m c m'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.2449(13)
_cell_length_b                   16.6049(15)
_cell_length_c                   6.3738(6)
_cell_measurement_reflns_used    3210
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.85
_cell_measurement_theta_min      2.45
_cell_volume                     1507.6(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0415
_diffrn_reflns_av_sigmaI/netI    0.0298
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            5930
_diffrn_reflns_theta_full        25.11
_diffrn_reflns_theta_max         25.11
_diffrn_reflns_theta_min         1.88
_exptl_absorpt_coefficient_mu    30.929
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.3672
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS, 1996'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    3.873
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1528
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.050
_refine_diff_density_min         -1.161
_refine_diff_density_rms         0.183
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.154
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     59
_refine_ls_number_reflns         751
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.154
_refine_ls_R_factor_all          0.0252
_refine_ls_R_factor_gt           0.0208
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0144P)^2^+16.7628P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0497
_refine_ls_wR_factor_ref         0.0507
_reflns_number_gt                669
_reflns_number_total             751
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg8004163sup1.cif
_cod_data_source_block           cpd2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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 
;
_cod_original_sg_symbol_H-M      'Cmcm '
_cod_database_code               4508937