Syntheses, structure and properties of a new series of organic-inorganic Hg-based halides: adjusting halogens resulted in huge performance mutations.
Yang, Can; Liu, Xian; Teng, Chunlin; Wu, Qi; Liang, Fei; Dalton transactions (Cambridge, England : 2003) 50 (2021) 7563–7570; doi:10.1039/d1dt01085a

data_7707190
_publ_section_title
;
 Syntheses, structure and properties of a new series of organic-inorganic
 Hg-based halides: adjusting halogens resulted in huge performance
 mutations.
;
_journal_issue                   22
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7563
_journal_page_last               7570
_journal_paper_doi               10.1039/d1dt01085a
_journal_volume                  50
_journal_year                    2021
_chemical_formula_moiety         'Br Hg I2, 2(C2 H6 N0.5)'
_chemical_formula_sum            'C4 H12 Br Hg I2 N'
_chemical_formula_weight         608.45
_space_group_crystal_system      orthorhombic
_space_group_IT_number           26
_space_group_name_Hall           'P 2c -2'
_space_group_name_H-M_alt        'P m c 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2021-01-12
_audit_creation_method
;
Olex2 1.3
(compiled 2020.07.31 svn.rc2a77460 for OlexSys, GUI svn.r6145)
;
_audit_update_record
;
2021-03-08 deposited with the CCDC.	2021-04-23 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.3711(2)
_cell_length_b                   9.4395(2)
_cell_length_c                   16.1734(4)
_cell_measurement_reflns_used    8404
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      22.8220
_cell_measurement_theta_min      2.1550
_cell_volume                     1278.01(5)
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0332
_diffrn_reflns_av_unetI/netI     0.0352
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.984
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            24323
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.970
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.486
_diffrn_reflns_theta_min         2.158
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    19.948
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.50337
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            'clear yellowish green'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   yellowish
_exptl_crystal_colour_primary    green
_exptl_crystal_density_diffrn    3.162
_exptl_crystal_description       needle
_exptl_crystal_F_000             1056
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.1
_refine_diff_density_max         3.575
_refine_diff_density_min         -1.348
_refine_diff_density_rms         0.330
_refine_ls_abs_structure_details
;
 Flack x determined using 912 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.463(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.103
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     100
_refine_ls_number_reflns         4013
_refine_ls_number_restraints     131
_refine_ls_restrained_S_all      1.088
_refine_ls_R_factor_all          0.1229
_refine_ls_R_factor_gt           0.0836
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1220P)^2^+8.4251P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2083
_refine_ls_wR_factor_ref         0.2316
_reflns_Friedel_coverage         0.908
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.955
_reflns_number_gt                2704
_reflns_number_total             4013
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1dt01085a2.cif
_cod_data_source_block           1
_cod_depositor_comments
'Adding full bibliography for 7707190--7707192.cif.'
_cod_database_code               7707190
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.240
_shelx_estimated_absorpt_t_min   0.167
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained distances
 N2-C6 = N2-C5 = N2-C4 = N1-C2 = N1-C3 = N1-C1
 1.48 with sigma of 0.01
 C6-C4 = C4-C4_$1
 2.5 with sigma of 0.02
 C5-C6 = C6-C4
 2.5 with sigma of 0.01
3. Rigid bond restraints
 N1, N2
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.001
4. Uiso/Uaniso restraints and constraints
N1 \\sim N2 \\sim C5 \\sim C1 \\sim C3 \\sim C4 \\sim C2 \\sim C6: within 2A
with sigma of 0.01 and sigma for terminal atoms of 0.02 within 2A
Uanis(N2) \\sim Ueq, Uanis(N1) \\sim Ueq: with sigma of 0.001 and sigma for
terminal atoms of 0.001
Uanis(N1) \\sim Ueq, Uanis(N2) \\sim Ueq, Uanis(C5) \\sim Ueq, Uanis(C1) \\sim
Ueq, Uanis(C3) \\sim Ueq, Uanis(C4) \\sim Ueq, Uanis(C2) \\sim Ueq, Uanis(C6)
\\sim Ueq: with sigma of 0.01 and sigma for terminal atoms of 0.02
5. Rigid body (RIGU) restrains
 C3
 with sigma for 1-2 distances of 0.001 and sigma for 1-3 distances of 0.001
 N1, N2, C5, C1, C3, C4, C2, C6
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.01
6. Others
 Fixed Sof: H5B(0.5) H5C(0.5) H1A(0.5) H1B(0.5) H1C(0.5) H2B(0.5) H2C(0.5)
 H6B(0.5) H6C(0.5)
7.a Me refined with riding coordinates:
 C5(H5A,H5B,H5C), C1(H1A,H1B,H1C), C3(H3A,H3B,H3C), C4(H4A,H4B,H4C), C2(H2A,
 H2B,H2C), C6(H6A,H6B,H6C)
;
_shelx_res_checksum              9198
_shelx_hkl_checksum              76508
_olex2_submission_special_instructions 'No special instructions were received'