Single-source precursors for alloyed gold-silver nanocrystals - a molecular metallurgy approach.
Zopes, David; Hegemann, Corinna; Schläfer, Johannes; Tyrra, Wieland; Mathur, Sanjay; Inorganic chemistry 54 (2015) 3781–3787; doi:10.1021/ic502924s

data_4342793
_publ_section_title
;
 Single-source precursors for alloyed gold-silver nanocrystals - a
 molecular metallurgy approach.
;
_journal_issue                   8
_journal_name_full               'Inorganic chemistry'
_journal_page_first              3781
_journal_page_last               3787
_journal_paper_doi               10.1021/ic502924s
_journal_volume                  54
_journal_year                    2015
_chemical_formula_moiety         'C24 H54 Ag P2, C2 Au F6'
_chemical_formula_sum            'C26 H54 Ag Au F6 P2'
_chemical_formula_weight         847.47
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 98.822(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.7358(3)
_cell_length_b                   12.9770(5)
_cell_length_c                   15.1248(6)
_cell_measurement_reflns_used    25337
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.85
_cell_measurement_theta_min      2.73
_cell_volume                     1694.33(11)
_computing_cell_refinement       'X-Area (Stoe & Cie, 2001)'
_computing_data_collection       'X-Area (Stoe & Cie, 2001)'
_computing_data_reduction        'X-Area (Stoe & Cie, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 'not measured'
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'IPDS 2 T (Stoe & Cie)'
_diffrn_measurement_method       '\w and \f 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  0.0749
_diffrn_reflns_av_sigmaI/netI    0.0324
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            25337
_diffrn_reflns_theta_full        26.85
_diffrn_reflns_theta_max         26.85
_diffrn_reflns_theta_min         2.73
_diffrn_standards_decay_%        'not measured'
_diffrn_standards_interval_count 'not measured'
_diffrn_standards_interval_time  'not measured'
_diffrn_standards_number         'not measured'
_exptl_absorpt_coefficient_mu    5.043
_exptl_absorpt_correction_T_max  0.5362
_exptl_absorpt_correction_T_min  0.4151
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
The absorption correction (X-RED; Stoe & Cie, 2001)
was performed after optimizing the crystal shape
using X-SHAPE (Stoe & Cie, 1999).
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.661
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       dodecahedron
_exptl_crystal_F_000             840
_exptl_crystal_size_max          0.53
_exptl_crystal_size_mid          0.46
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.925
_refine_diff_density_min         -2.209
_refine_diff_density_rms         0.140
_refine_ls_extinction_coef       0.0055(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.079
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     167
_refine_ls_number_reflns         3597
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.079
_refine_ls_R_factor_all          0.0488
_refine_ls_R_factor_gt           0.0423
_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^)+(0.0596P)^2^+2.2090P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1148
_refine_ls_wR_factor_ref         0.1211
_reflns_number_gt                3027
_reflns_number_total             3597
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic502924s_si_003.cif
_cod_data_source_block           '[Ag(tBu)2][Au(CF3)2]'
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 4342792--4342794.cif.
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4342793