Conformational variety of flexible mono-dentate ligands in coordination compounds: influence of π-involving interactions.
Khavasi, Hamid Reza; Kavand, Sima; Dalton transactions (Cambridge, England : 2003) 45 (2016) 10761–10770; doi:10.1039/c6dt01563h

data_7039499
_publ_section_title
;
 Conformational variety of flexible mono-dentate ligands in coordination
 compounds: influence of \p-involving interactions.
;
_journal_issue                   26
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10761
_journal_page_last               10770
_journal_paper_doi               10.1039/c6dt01563h
_journal_volume                  45
_journal_year                    2016
_chemical_formula_sum            'C16 H11 Br Hg I2 N2'
_chemical_formula_weight         765.56
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P -2bc 2a'
_symmetry_space_group_name_H-M   'P 21 n b'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-04-30 deposited with the CCDC.
2016-06-06 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.4259(6)
_cell_length_b                   8.8140(10)
_cell_length_c                   28.085(3)
_cell_measurement_reflns_used    17533
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      27.00
_cell_measurement_theta_min      2.42
_cell_volume                     1838.2(3)
_computing_cell_refinement       'X-Area 1.31 (Stoe & Cie GmbH, 2005)'
_computing_data_collection       'X-Area 1.31 (Stoe & Cie GmbH, 2005)'
_computing_data_reduction        'X-Area 1.31 (Stoe & Cie GmbH, 2005)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean '0.15 mm'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'STOE IPDS II'
_diffrn_measurement_method       'rotation method'
_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  0.0883
_diffrn_reflns_av_sigmaI/netI    0.0991
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            17533
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.42
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    13.903
_exptl_absorpt_correction_T_max  0.5961
_exptl_absorpt_correction_T_min  0.3109
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'shape of crystal determined optically'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    2.766
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             1368
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.135
_refine_diff_density_min         -1.071
_refine_diff_density_rms         0.204
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.028(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.011
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     184
_refine_ls_number_reflns         4010
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.011
_refine_ls_R_factor_all          0.0912
_refine_ls_R_factor_gt           0.0863
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0259P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1086
_refine_ls_wR_factor_ref         0.1313
_reflns_number_gt                3860
_reflns_number_total             4010
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6dt01563h2.cif
_cod_data_source_block           d:\determination\solution\c728\khc728-abs
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 7039497--7039504.cif.
;
_cod_original_sg_symbol_H-M      P21nb
_cod_original_formula_sum        'C16 H11 Br1 Hg1 I2 N2'
_cod_database_code               7039499