The influence of counter ion and ligand methyl substitution on the solid-state structures and photophysical properties of mercury(II) complexes with (E)-N-(pyridin-2-ylmethylidene)arylamines.
Basu Baul, Tushar S.; Kundu, Sajal; Mitra, Sivaprasad; Höpfl, Herbert; Tiekink, Edward R. T.; Linden, Anthony; Dalton transactions (Cambridge, England : 2003) 42 (2013) 1905–1920; doi:10.1039/c2dt32283h

data_7022311
_publ_section_title
;
 The influence of counter ion and ligand methyl substitution on the
 solid-state structures and photophysical properties of mercury(II)
 complexes with (E)-N-(pyridin-2-ylmethylidene)arylamines.
;
_journal_issue                   5
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1905
_journal_page_last               1920
_journal_paper_doi               10.1039/c2dt32283h
_journal_volume                  42
_journal_year                    2013
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C26 H24 Br4 Hg2 N4'
_chemical_formula_sum            'C26 H24 Br4 Hg2 N4'
_chemical_formula_weight         1113.32
_chemical_name_systematic
;
?
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      4
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     heavy
_atom_sites_solution_secondary   difmap
_audit_creation_date             10-12-20
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 104.6895(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.2201(1)
_cell_length_b                   17.5934(3)
_cell_length_c                   10.0430(2)
_cell_measurement_reflns_used    33060
_cell_measurement_temperature    160(1)
_cell_measurement_theta_max      30.0
_cell_measurement_theta_min      2.0
_cell_volume                     1404.94(4)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 2000)'
_computing_data_reduction
'DENZO-SMN and SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_publication_material  'SHELXL97 and PLATON (Spek, 2006)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'DIRDIF94 (Beurskens et al., 1994)'
_diffrn_ambient_temperature      160(1)
_diffrn_detector                 '65 mm CCD camera on \k goniostat'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type
'Nonius KappaCCD area-detector diffractometer'
_diffrn_measurement_method       '\f and \w scans with \k offsets'
_diffrn_radiation_monochromator  'horizontally mounted graphite crystal'
_diffrn_radiation_source         'Nonius FR590 sealed tube generator'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0537
_diffrn_reflns_av_sigmaI/netI    0.0360
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            41875
_diffrn_reflns_theta_full        29.99
_diffrn_reflns_theta_max         29.99
_diffrn_reflns_theta_min         2.10
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    16.667
_exptl_absorpt_correction_T_max  0.213
_exptl_absorpt_correction_T_min  0.152
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Blessing, 1995)'
_exptl_crystal_colour            pale-yellow
_exptl_crystal_density_diffrn    2.631
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1016
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         2.359
_refine_diff_density_min         -2.002
_refine_diff_density_rms         0.249
_refine_ls_abs_structure_details
'Flack & Bernardinelli (2000), 3798 Friedel pairs'
_refine_ls_abs_structure_Flack   0.259(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     328
_refine_ls_number_reflns         8003
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0383
_refine_ls_R_factor_gt           0.0318
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0388P)^2^+2.3344P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0698
_refine_ls_wR_factor_ref         0.0731
_reflns_number_gt                7309
_reflns_number_total             8003
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c2dt32283h.txt
_cod_data_source_block           7
_cod_database_code               7022311