4-Halo-1,2,3-triazolylidenes: stable carbenes featuring halogen bonding.
Xu, Xingyu; Zhang, Zengyu; Huang, Shiqing; Cao, Lei; Liu, Wei; Yan, Xiaoyu; Dalton transactions (Cambridge, England : 2003) 48 (2019) 6931–6941; doi:10.1039/c9dt01018a

data_7049685
_publ_section_title
;
 4-Halo-1,2,3-triazolylidenes: stable carbenes featuring halogen bonding.
;
_journal_issue                   20
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6931
_journal_page_last               6941
_journal_paper_doi               10.1039/c9dt01018a
_journal_volume                  48
_journal_year                    2019
_chemical_formula_moiety         'C26 H34 Au I2 N3'
_chemical_formula_sum            'C26 H34 Au I2 N3'
_chemical_formula_weight         839.33
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_audit_creation_date             2018-05-28
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.18 svn.r3508 for OlexSys, GUI svn.r5497)
;
_audit_update_record
;
2019-02-18 deposited with the CCDC.    2019-04-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 104.327(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.6310(7)
_cell_length_b                   22.0962(14)
_cell_length_c                   14.1496(8)
_cell_measurement_reflns_used    9553
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      27.477
_cell_measurement_theta_min      2.368
_cell_volume                     2917.5(3)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      200.0
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.994
_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  0.0387
_diffrn_reflns_av_unetI/netI     0.0460
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            19924
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.537
_diffrn_reflns_theta_min         2.368
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    7.176
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.4050
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1113 before and 0.0495 after correction. The Ratio of minimum to maximum transmission is 0.5432. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            'clear light yellow'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.911
_exptl_crystal_description       block
_exptl_crystal_F_000             1584
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.2
_exptl_transmission_factor_max   0.7456
_exptl_transmission_factor_min   0.4050
_refine_diff_density_max         1.221
_refine_diff_density_min         -1.304
_refine_diff_density_rms         0.151
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     297
_refine_ls_number_reflns         6703
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0484
_refine_ls_R_factor_gt           0.0316
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0217P)^2^+2.7226P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0591
_refine_ls_wR_factor_ref         0.0639
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5410
_reflns_number_total             6703
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9dt01018a2.cif
_cod_data_source_block           mo_xxy20180318ca12_0m_a
_cod_depositor_comments
'Adding full bibliography for 7049675--7049689.cif.'
_cod_database_code               7049685
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.328
_shelx_estimated_absorpt_t_min   0.222
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C9(H9), C18(H18), C21(H21), C24(H24)
2.b Aromatic/amide H refined with riding coordinates:
 C7(H7), C6(H6), C5(H5), C14(H14), C15(H15), C16(H16)
2.c Idealised Me refined as rotating group:
 C10(H10A,H10B,H10C), C11(H11A,H11B,H11C), C19(H19A,H19B,H19C), C20(H20A,H20B,
 H20C), C22(H22A,H22B,H22C), C23(H23A,H23B,H23C), C25(H25A,H25B,H25C), C26(H26A,
 H26B,H26C)
;
_shelx_res_checksum              71086
_olex2_submission_special_instructions 'No special instructions were received'