[Ag7(H){E2P(OR)2}6] (E = Se, S): Precursors for the Fabrication of Silver Nanoparticles
C. W. Liu; Yan-Ru Lin; Ching-Shiang Fang; Camille Latouche; Samia Kahlal; Jean-Yves Saillard; Inorganic Chemistry 52 (2013) 2070–2077; doi:10.1021/ic302482p

data_4333899
_publ_section_title
;
 [Ag7(H){E2P(OR)2}6] (E = Se, S): Precursors for the Fabrication of Silver
 Nanoparticles
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2070
_journal_page_last               2077
_journal_paper_doi               10.1021/ic302482p
_journal_volume                  52
_journal_year                    2013
_chemical_formula_sum            'C24 H61 Ag7 O12 P6 S12'
_chemical_formula_weight         1867.36
_chemical_name_systematic
; 
 ? 
;
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_cell_formula_units_Z            3
_cell_length_a                   21.087(3)
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_cell_length_c                   11.6295(16)
_cell_measurement_reflns_used    1733
_cell_measurement_temperature    253(2)
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_cell_measurement_theta_min      2.84
_cell_volume                     4478.4(11)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      253(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0264
_diffrn_reflns_av_sigmaI/netI    0.0225
_diffrn_reflns_limit_h_max       25
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_diffrn_reflns_limit_k_min       -25
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_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            6426
_diffrn_reflns_theta_full        25.11
_diffrn_reflns_theta_max         25.11
_diffrn_reflns_theta_min         1.93
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.872
_exptl_absorpt_correction_T_max  0.7430
_exptl_absorpt_correction_T_min  0.5838
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.077
_exptl_crystal_description       block
_exptl_crystal_F_000             2736
_exptl_crystal_size_max          0.21
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_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.811
_refine_diff_density_min         -0.937
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     129
_refine_ls_number_reflns         1764
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0868
_refine_ls_R_factor_gt           0.0605
_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^)+(0.0704P)^2^+37.0197P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1504
_refine_ls_wR_factor_ref         0.1733
_reflns_number_gt                1221
_reflns_number_total             1764
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic302482p_si_002_2.cif
_cod_data_source_block           4
_cod_original_cell_volume        4478.6(11)
_cod_original_sg_symbol_H-M      'R -3'
_cod_database_code               4333899