Hg(ii) supramolecular isomers: structural transformation and photoluminescence change
Thapa, Kedar Bahadur; Hsu, Yi-Fen; Lin, Hsuan-Chou; Chen, Jhy-Der; CrystEngComm 17 (2015) 7574–; doi:10.1039/C5CE01098E

data_7221977
_publ_section_title
;
 Hg(ii) supramolecular isomers: structural transformation and
 photoluminescence change
;
_journal_issue                   39
_journal_name_full               CrystEngComm
_journal_page_first              7574
_journal_paper_doi               10.1039/C5CE01098E
_journal_volume                  17
_journal_year                    2015
_chemical_formula_sum            'C16 H18 Hg I2 N4 O2'
_chemical_formula_weight         752.73
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           96
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4nw 2abw'
_symmetry_space_group_name_H-M   'P 43 21 2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-06-02 deposited with the CCDC.
2015-09-01 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                   8.57840(10)
_cell_length_b                   8.57840(10)
_cell_length_c                   27.9769(5)
_cell_measurement_reflns_used    7344
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.79
_cell_measurement_theta_min      2.48
_cell_volume                     2058.79(5)
_computing_cell_refinement       'SAINT V7.68A (Bruker AXS, 2010)'
_computing_data_collection       'APEX2 (Bruker AXS, 2010)'
_computing_data_reduction        'SAINT V7.68A (Bruker AXS, 2010)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0612
_diffrn_reflns_av_sigmaI/netI    0.0483
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            19750
_diffrn_reflns_theta_full        28.30
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         2.48
_exptl_absorpt_coefficient_mu    10.491
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.4872
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS, 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.429
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1376
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.569
_refine_diff_density_min         -0.873
_refine_diff_density_rms         0.124
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.009(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.004
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     114
_refine_ls_number_reflns         2567
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.004
_refine_ls_R_factor_all          0.0527
_refine_ls_R_factor_gt           0.0291
_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^)+(0.0126P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0461
_refine_ls_wR_factor_ref         0.0512
_reflns_number_gt                1923
_reflns_number_total             2567
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ce01098e2.cif
_cod_data_source_block           4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
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 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 7221974--7221977.cif.
;
_cod_original_sg_symbol_H-M      P4(3)2(1)2
_cod_database_code               7221977