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_4117465
_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            'C172 H246 Ag38 Cl18 O51'
_chemical_formula_weight         7866.85
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 91.106(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   32.884(3)
_cell_length_b                   20.3223(18)
_cell_length_c                   33.950(3)
_cell_measurement_temperature    173(2)
_cell_volume                     22684(4)
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0945
_diffrn_reflns_av_sigmaI/netI    0.0299
_diffrn_reflns_limit_h_max       39
_diffrn_reflns_limit_h_min       -39
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            377592
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         1.18
_exptl_absorpt_coefficient_mu    3.472
_exptl_absorpt_correction_T_max  0.3373
_exptl_absorpt_correction_T_min  0.2757
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.304
_exptl_crystal_description       block
_exptl_crystal_F_000             15112
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.40
_refine_diff_density_max         1.765
_refine_diff_density_min         -1.043
_refine_diff_density_rms         0.186
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.123
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1284
_refine_ls_number_reflns         20563
_refine_ls_number_restraints     89
_refine_ls_restrained_S_all      1.136
_refine_ls_R_factor_all          0.0510
_refine_ls_R_factor_gt           0.0393
_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^)+(0.0419P)^2^+298.8786P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1016
_refine_ls_wR_factor_ref         0.1121
_reflns_number_gt                17324
_reflns_number_total             20563
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja211438q_si_002_2.cif
_cod_data_source_block           2
_cod_original_cell_volume        22683(3)
_cod_database_code               4117465