A gold(i)‒pyrazolato complex as a switch-on luminescent probe for cysteine: in situ formation of fluorescent nanoparticles and rose-like microspheres
Sun, Raymond Wai-Yin; Xu, Ruo-Fan; Song, Huan-Quan; Saint-Germain, Camille; Zhang, Ming; Ni, Wen-Xiu; Chen, Chun-Xia; Hemmert, Catherine; Gornitzka, Heinz; Li, Dan; Inorganic Chemistry Frontiers 3 (2016) 1406–; doi:10.1039/C6QI00205F

data_4349502
_publ_section_title
;
 A gold(i)--pyrazolato complex as a switch-on luminescent probe for
 cysteine: in situ formation of fluorescent nanoparticles and rose-like
 microspheres
;
_journal_issue                   11
_journal_name_full               'Inorganic Chemistry Frontiers'
_journal_page_first              1406
_journal_paper_doi               10.1039/C6QI00205F
_journal_volume                  3
_journal_year                    2016
_chemical_formula_sum            'C26 H20 Au2 Cl2 N4 S2'
_chemical_formula_weight         917.41
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-06-11 deposited with the CCDC.
2016-08-26 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 95.540(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   28.5599(9)
_cell_length_b                   4.02280(10)
_cell_length_c                   22.5333(7)
_cell_measurement_reflns_used    1595
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.2620
_cell_measurement_theta_min      3.6220
_cell_volume                     2576.78(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini'
_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  0.0172
_diffrn_reflns_av_sigmaI/netI    0.0294
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            3998
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         3.24
_exptl_absorpt_coefficient_mu    11.768
_exptl_absorpt_correction_T_max  0.244
_exptl_absorpt_correction_T_min  0.174
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.365
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1712
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.12
_refine_diff_density_max         1.357
_refine_diff_density_min         -0.601
_refine_diff_density_rms         0.150
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     176
_refine_ls_number_reflns         2603
_refine_ls_number_restraints     38
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0494
_refine_ls_R_factor_gt           0.0384
_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^)+(0.0544P)^2^+2.3521P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0945
_refine_ls_wR_factor_ref         0.1049
_reflns_number_gt                2083
_reflns_number_total             2603
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6qi00205f2.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4349502