Enlargement of Globular Silver Alkynide Cluster via Core Transformation
Sam C. K. Hau; Ping-Shing Cheng; Thomas C. W. Mak; Journal of the American Chemical Society 134 (2012) 2922–2925; doi:10.1021/ja211438q

data_4117464
_publ_section_title
;
 Enlargement of Globular Silver Alkynide Cluster via Core Transformation
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2922
_journal_page_last               2925
_journal_paper_doi               10.1021/ja211438q
_journal_volume                  134
_journal_year                    2012
_chemical_formula_sum            'C128 H197 Ag38 Cl18 O50'
_chemical_formula_weight         7273.02
_chemical_name_systematic
; 
 ? 
;
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_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
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_cell_angle_beta                 116.638(2)
_cell_angle_gamma                116.1750(10)
_cell_formula_units_Z            1
_cell_length_a                   18.3988(14)
_cell_length_b                   18.6925(14)
_cell_length_c                   19.076(2)
_cell_measurement_temperature    173(2)
_cell_volume                     4928.5(8)
_computing_cell_refinement       SAINT(Bruker,2001)
_computing_data_collection       APEX2(Bruker,2003)
_computing_data_reduction        APEX2(Bruker,2003)
_computing_molecular_graphics    DIAMOND
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX II CCD diffractometer'
_diffrn_measurement_method       '\f and \w scan'
_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  0.0435
_diffrn_reflns_av_sigmaI/netI    0.0312
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            88599
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
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_exptl_absorpt_coefficient_mu    3.983
_exptl_absorpt_correction_T_max  0.5030
_exptl_absorpt_correction_T_min  0.3812
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.451
_exptl_crystal_description       block
_exptl_crystal_F_000             3457
_exptl_crystal_size_max          0.30
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_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.823
_refine_diff_density_min         -1.107
_refine_diff_density_rms         0.151
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.108
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1046
_refine_ls_number_reflns         17850
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.108
_refine_ls_R_factor_all          0.0491
_refine_ls_R_factor_gt           0.0338
_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^)+(0.0023P)^2^+45.0354P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0700
_refine_ls_wR_factor_ref         0.0799
_reflns_number_gt                14645
_reflns_number_total             17850
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja211438q_si_002_1.cif
_cod_data_source_block           1
_cod_original_cell_volume        4928.4(8)
_cod_database_code               4117464