Correlating thermochromic and mechanochromic phosphorescence with polymorphs of a complex gold(i) double salt with infinite aurophilicity.
Liu, Qi; Xie, Mo; Chang, Xiaoyong; Gao, Qin; Chen, Yong; Lu, Wei; Chemical communications (Cambridge, England) 54 (2018) 12844–12847; doi:10.1039/c8cc05210g

data_7122468
_publ_section_title
;
 Correlating thermochromic and mechanochromic phosphorescence with
 polymorphs of a complex gold(i) double salt with infinite aurophilicity.
;
_journal_issue                   91
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              12844
_journal_page_last               12847
_journal_paper_doi               10.1039/c8cc05210g
_journal_volume                  54
_journal_year                    2018
_chemical_formula_moiety         '0.5(C32 H32 Au4 N20)'
_chemical_formula_sum            'C16 H16 Au2 N10'
_chemical_formula_weight         742.32
_space_group_crystal_system      orthorhombic
_space_group_IT_number           31
_space_group_name_Hall           'P 2ac -2'
_space_group_name_H-M_alt        'P m n 21'
_symmetry_space_group_name_Hall  'P 2ac -2'
_symmetry_space_group_name_H-M   'P m n 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2018-10-10
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2018-10-10 deposited with the CCDC.
2018-10-12 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   6.3306(4)
_cell_length_b                   8.1410(5)
_cell_length_c                   18.7077(11)
_cell_measurement_reflns_used    8899
_cell_measurement_temperature    200
_cell_measurement_theta_max      28.320
_cell_measurement_theta_min      2.728
_cell_volume                     964.15(10)
_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
_diffrn_detector                 'Bruker PHOTO 100 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker PHOTO 100 area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0543
_diffrn_reflns_av_unetI/netI     0.0351
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            18339
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.326
_diffrn_reflns_theta_min         2.177
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_exptl_absorpt_coefficient_mu    15.224
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.3840
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1605 before and 0.0908 after correction. The Ratio of minimum to maximum transmission is 0.5150. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    2.557
_exptl_crystal_description       plate
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.01
_refine_diff_density_max         2.279
_refine_diff_density_min         -2.263
_refine_diff_density_rms         0.589
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.41(3)
_refine_ls_extinction_coef       0.0132(13)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2016/6 (Sheldrick 2016)'
_refine_ls_goodness_of_fit_ref   1.222
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     175
_refine_ls_number_reflns         2603
_refine_ls_number_restraints     169
_refine_ls_restrained_S_all      1.205
_refine_ls_R_factor_all          0.0566
_refine_ls_R_factor_gt           0.0440
_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^)+(0.0757P)^2^+0.1187P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1158
_refine_ls_wR_factor_ref         0.1336
_reflns_Friedel_coverage         0.944
_reflns_Friedel_fraction_full    0.998
_reflns_Friedel_fraction_max     0.998
_reflns_number_gt                2154
_reflns_number_total             2603
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8cc05210g3.cif
_cod_data_source_block           cxy0495_pmn21_CCDC1
_cod_depositor_comments
'Adding full bibliography for 7122465--7122471.cif.'
_cod_database_code               7122468
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.863
_shelx_estimated_absorpt_t_min   0.092
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.59(3)
 0.41(3)
2. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
3. Uiso/Uaniso restraints and constraints
All non-hydrogen atoms have similar U: within 2A with sigma of 0.01 and sigma
for terminal atoms of 0.02
4. Others
 Fixed Sof: H6A(0.5) H6B(0.5) H6C(0.5) H7A(0.5) H7B(0.5) H7C(0.5) H13A(0.5)
 H13B(0.5) H13C(0.5) H14A(0.5) H14B(0.5) H14C(0.5)
5.a Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C10(H10), C11(H11)
5.b Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C7(H7A,H7B,H7C), C13(H13A,H13B,H13C), C14(H14A,H14B,H14C)
;
_olex2_submission_special_instructions 'No special instructions were received'